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Li, Dong-Dong, Yi, Tian-Ci, Guo, Jian-Jun, Jin, Dao-Chao (2022): Morphological changes and ontogenetic development of Amblyseius eharai Amitai & Swirski (Acari: Phytoseiidae). Zootaxa 5187 (1): 270-290, DOI: https://doi.org/10.11646/zootaxa.5187.1.15

Atractides (Atractides) smiti Zhang, Li & Guo sp. nov. urn:lsid:zoobank.org:act: D2DA763A-88E0-4432-810F-76BC5FBF1F3B Figs 4–5 Diagnosis Muscle attachments between D 3 sclerotized. I-L-5 longish, S-1 and S-2 both with blunt tips and with a narrow setal interspace between them; I-L-6 curved. Ac in an obtuse triangle; V1 fused to V2, excretory pore surrounded by sclerotized ring. P-2 and P-3 ventral margin slightly straight; P-4 divided by two ventral hairs in sectors 3:3:2, sword seta at the middle of P-4. Etymology The species is named after Dr Harry Smit in appreciation of his contributions to the taxonomy of water mites. Type material Holotype CHINA • ♂; Qinghai Province, Huangnan Tibetan Autonomous Prefecture, Zeku County, Maixiu Town; 35°18′64′′ N, 101°52′32′′ E; 3201 m a.s.l.; 17 Jul. 2020; Hai-Tao Li leg.; running water; GUGC, Slide No. QH-HY-2020071706. Description Male Idiosoma oval; O2 and L1 at the same level; setae of D1 about two thirds of the distance from D1 to D2; setae of D 2 reaching to the level of D 3 ; muscle attachments between D 3 sclerotized; all setae surrounded by sclerites; So 1 in front of A 2 , So 2 at the same level as D 1 , So 3 near D 2 , So 4 at the same level as D 3 , So 5 behind D 4 (Fig. 4A). ACG fused together and with a suture, apodemes of ACG reaching to Cx-III; genital field with a development sclerotization, the anterior part of Ap with a projection, Ac in an obtuse triangle, Ac2 near Ac3 rather than Ac1, Ac3 the biggest; V1 fused to V2, V3 and V4 forming a trapezoid, V4 at the same level as the anterior of acetabular plate; excretory pore surrounded by sclerotized ring (Fig. 4B). Palp five-segmented; P-2 and P-3 ventral margins slightly straight; P-4 with numerous dorsal hairs, and divided by two ventral hairs in sectors 3:3:2, sword seta at the middle of P-4 (Fig. 4E). I-L-5 longish, S-1 and S-2 both with blunt tips and with a narrow setal interspace between them; I-L-6 curved (Fig. 5A). Measurements Male (n = 1) Idiosoma L 513, W 369; coxal field L 264, Cx-III W 164, ACG IL 175, mL 103, W 216; infracapitular bay L 97; genital field L 131, Ac1–3 L 26, 28, 27; chelicera L 145; infracapitulum L 125; palp dL: P-1 23, P-2 49, P-3 49, P-4 70, P-5 26; legs segments: I-L-1 dL 38, I-L-2 dL 74, I-L-3 dL 67, I-L-4 dL 107, I-L-5 dL 122, HB 37, I-L-6 dL 72, HB 19, S-1 L 54, S-2 L 60; dL: II-L-1 32, II-L-2 61, II-L-3 57, II-L-4 82, II-L-5 85, II-L-6 91; dL: III-L-1 36, III-L-2 64, III-L-3 61, III-L-4 95, III-L-5 106, III-L-6 103; dL: IV-L-1 70, IV-L-2 83, IV-L-3 107, IV-L-4 138, IV-L-5 148, IV-L-6 129. Female Unknown. Remarks The new species Atractides (Atractides) smiti sp. nov. is similar to Atractides protendens K.O. Viets, 1955 in the following points: (1) P-2 and P-3 ventral margins slightly straight; (2) S-1 and S-2 with a narrow setal interspace between them; (3) the anterior part of Ap with a projection; (4) apodemes of ACG reaching to Cx-III. However, A. (A.) smiti differs from A. protendens in the following aspects: (1) V1 fused to V 2 in A. (A.) smiti, but not fused in A. protendens; (2) excretory pore surrounded by sclerotized ring in A. (A.) smiti, but smooth in A. protendens; (3) the I-L-6 of A. (A.) smiti more curved than that of A. protendens (Gerecke 2003)., Published as part of Zhang, Yu-Hao, Li, Hai-Tao, Li, Cai-Yun & Guo, Jian-Jun, 2022, New species of genus Atractides Koch, 1837 (Acari: Hydrachnidiae, Hygrobatidae) from Qinghai, China, pp. 121-142 in European Journal of Taxonomy 833 (1) on pages 127-129, DOI: 10.5852/ejt.2022.833.1889, http://zenodo.org/record/6958174, {"references":["Gerecke R. 2003. Water mites of the genus Atractides Koch, 1837 (Acari: Parasitengona: Hygrobatidae) in the western Palaearctic region: a revision. Zoological Journal of the Linnean Society 138 (2 - 3): 141 - 378. https: // doi. org / 10.1046 / j. 1096 - 3642.06 - 0.00051. x"]}

Atractides (Atractides) xianmiensis Zhang, Li & Guo sp. nov. urn:lsid:zoobank.org:act: FB29B7EB-1A14-450E-80E2-4795C3B299EA Figs 11–13 Diagnosis Male Dorsal muscle attachment unsclerotized. I-L-5 longish, S-1 and S-2 both with blunt tips and with a setal interspace between them; I-L-6 straight. Ac in an obtuse triangle; V 1 separated from V 2 . P-2 and P-3 with a ventral projection respectively, P-4 with numerous dorsal hairs, ventral hairs long, one at the middle of the surface, and the other one at the terminal of lateral edge, sword seta at the middle of P-4. Female Ac in a weakly curved line. P-2 with a ventral projection, P-3 ventral margin slightly convex, P-4 divided by two ventral hairs in sectors 1:1:1. Etymology The new species is named after the name of the Xianmi National Nature Reserve where the specimens were collected. Type material Holotype CHINA • ♂; Qinghai Province, Xianmi National Nature Reserve; 37°10′56′′ N, 102°20′03′′ E; 2949 m a.s.l.; 29 Jul. 2020; Hai-Tao Li leg.; running water; GUGC, Slide No. QH-HY-2020072910. Paratypes CHINA • 3 ♂♂; same collection data as for holotype; GUGC, Slides No. QH-HY-2020072911 to 2020072913 • 2 ♀♀; same collection data as for holotype; GUGC, Slides No. QH-HY-2020072914, 2020072915. Description Male (n = 4) Idiosoma oval, dorsal muscle attachment unsclerotized; So 1 near eye capsule; So 2 at the same level as D 1 ; So 3 at the same level as D 2 ; So 4 in front of L 4 ; So 5 behind D 4 (Fig. 11A). ACG fused together and with a suture, apodemes of ACG well developed, and reaching to Cx-III; Ac in an obtuse triangle, Ac3 biggest; V 1 separated far from V 2 , V 3 and V 4 forming a rectangle, V 4 at the same level as the anterior part of acetabular plate (Fig. 11B). Palp five-segmented; P-2 and P-3 with a ventral projection respectively, P-4 with numerous dorsal hairs, ventral hairs long, one at the middle of the surface, and the other one at the terminal of lateral edge, sword seta at the middle of P-4 (Fig. 11E). I-L-5 longish, S-1 and S-2 with blunt tips and with a setal interspace between them; I-L-6 straight (Fig. 13A). Female (n = 2) Similar to male (Fig. 12). Ac in a weakly curved line (Fig. 12B). P-2 with a ventral projection, P-3 ventral margin slightly convex, P-4 divided by two ventral hairs in sectors 1:1:1 (Fig. 11F). Measurements Male (n = 4) Idiosoma L 724 (724–896), W 605 (605–734); coxal field L 351 (351–395), Cx-III W 426 (426–483), ACG IL 251 (251–287), mL 131 (131–159), W 329 (329–372); infracapitular bay L 132 (132–160); genital field L 131 (131–144), Ac1–3 L 39 (36–41), 32 (32–43), 36 (36–46); chelicera L 227 (227–267); infracapitulum L 207 (207–239); palp dL: P-1 30 (30–37), P-2 69 (69–80), P-3 76 (76–89), P-4 107 (107–121), P-5 34 (33–34); Legs segments: I-L-1 dL 47 (47–56), I-L-2 dL 107 (107–126), I-L-3 dL 110 (110–125), I-L-4 dL 165 (165–191), I-L-5 dL 188 (188–214), HB 42 (42–46), I-L-6 dL 145 (145–160), HB 34 (32–34), S-1 L 67 (67–73), S-2 L 58 (58–65); dL: II-L-1 55 (47–59), II-L-2 94 (94–108), II-L-3 100 (100–113), II-L-4 141 (141–162), II-L-5 161 (161–184), II-L-6 154 (154–174); dL: III-L-1 54 (51– 63), III-L-2 93 (93–112), III-L-3 109 (109–124), III-L-4 166 (166–191), III-L-5 194 (194–226), III-L-6 178 (178–200); dL: IV-L-1 131 (129–137), IV-L-2 154 (154–161), IV-L-3 187 (187–211), IV-L-4 240 (240–274), IV-L-5 260 (260–303), IV-L-6 224 (224–246). Female (n = 2) Idiosoma L 925 (1215), W 754 (1042); coxal field L 403 (422), Cx-III W 515 (576), ACG IL 303 (323), mL 133 (131), W 405 (403); infracapitular bay L 180 (179); gonopore L 145 (190), Ap L 156 (156), Ac1–3 L 49 (48), 43 (45), 43 (46); chelicera L 291 (297); infracapitulum L 269 (268); palp dL: P-1 36 (46), P-2 84 (88), P-3 97 (103), P-4 124 (123), P-5 36 (39); legs segments: I-L-1 dL 59 (64), I-L-2 dL 122 (136), I-L-3 dL 131 (141), I-L-4 dL 193 (205), I-L-5 dL 220 (227), HB 47 (47), I-L-6 dL 165 (173), HB 39 (35), S-1 L 87 (78), S-2 L 74 (72); dL: II-L-1 64 (50), II-L-2 108 (106), II-L-3 121 (133), II-L-4 166 (180), II-L-5 188 (200), II-L-6 175 (186); dL: III-L-1 54 (68), III-L-2 114 (112), III-L-3 131 (142), III-L-4 198 (212), III-L-5 233 (241), III-L-6 208 (215); dL: IV-L-1 150 (160), IV-L-2 162 (174), IV-L-3 211 (228), IV-L-4 270 (293), IV-L-5 246 (314), IV-L-6 211 (265). Remarks The new species Atractides (Atractides) xianmiensis sp. nov. is similar to Atractides inflatus Walter, 1925 in the following points: (1) P-2 and P-3 of the male both with a ventral projection respectively; (2) V 1 not fused to V 2 ; (3) S-1 and S-2 both with blunt tips and with a setal interspace between them; (4) Ac in an obtuse triangle in the male and in a weakly curved line in the female. However, A. (A.) xianmiensis differs from A. inflatus in the following aspects: (1) apodemes of ACG in female well developed and reaching to Cx-III in A. (A.) xianmiensis, but not reaching to Cx-III in A. inflatus; (2) I-L-6 straight in A. (A.) xianmiensis, but curved in A. inflatus (Gerecke 2003)., Published as part of Zhang, Yu-Hao, Li, Hai-Tao, Li, Cai-Yun & Guo, Jian-Jun, 2022, New species of genus Atractides Koch, 1837 (Acari: Hydrachnidiae, Hygrobatidae) from Qinghai, China, pp. 121-142 in European Journal of Taxonomy 833 (1) on pages 137-139, DOI: 10.5852/ejt.2022.833.1889, http://zenodo.org/record/6958174, {"references":["Gerecke R. 2003. Water mites of the genus Atractides Koch, 1837 (Acari: Parasitengona: Hygrobatidae) in the western Palaearctic region: a revision. Zoological Journal of the Linnean Society 138 (2 - 3): 141 - 378. https: // doi. org / 10.1046 / j. 1096 - 3642.06 - 0.00051. x"]}

Atractides (Atractides) longiprojectus Zhang, Li & Guo sp. nov. urn:lsid:zoobank.org:act: A043146A-40FB-45E2-888A-3613E5A14165 Figs 9–10 Diagnosis Dorsal muscle attachment unsclerotized, setae of D 1 and D 2 significantly longer than others, setae of D 1 nearly reaching to D2, setae of D2 extending beyond D3. I-L-5 longish, S-1 and S-2 with a narrow setal interspace between them, S-1 longer than S-2. I-L-6 straight. Ac in a weakly curved line; V 1 separated from V 2 . P-2 with an unobvious ventral projection; P-3 ventral margin slightly convex; the ventral edge of P-4 divided by two long hairs in 2:1:2, sword seta at two thirds of P-4. Etymology The Latin prefix ‘ longi -’ means long, ACG of the female of this new species is with a particularly long hind projection. Type material Holotype CHINA • ♀; Qinghai Province, Haibei Tibetan Autonomous Prefecture, Menyuan Hui Autonomous County, Quankou Town; 37°31′31′′ N, 101°81′12′′ E; 2691 m a.s.l.; 29 Jul. 2020; Hai-Tao Li leg.; running water; GUGC, Slide No. QH-HY-2020072907. Paratypes CHINA • 2 ♀♀; same collection data as for holotype; GUGC, Slides No. QH-HY-2020072908, 2020072909. Description Female (n = 3) Idiosoma oval, dorsal muscle attachment unsclerotized; O2 and D1 at the same level; setae of D1 and D 2 significantly longer than others, setae of D 1 nearly reaching to D 2 , setae of D 2 extending beyond D 3 ; all slit organs visible, So 1 near the eye capsule, So 2 at the same level as D 1 , So 3 near D 2 , So 4 in front of L 4 , So 5 behind of D 4 (Fig. 9A). Coxal group occupying a half of ventral surface, projections from ACG extending to Cx-IV; Ac in a weakly curved line; V1 separated from V2; V3 and V4 forming a rectangle, V4 at the same level as the anterior of acetabular plate (Fig. 9B). Palp five-segmented; P-2 with an unobvious ventral projection; P-3 ventral margin slightly convex; P-4 with numerous dorsal hairs, the ventral edge of P-4 divided by two long hairs in 2:1:2, sword seta at two thirds of P-4 (Fig. 9E). I-L-5 longish, S-1 and S-2 with a narrow setal interspace, S-1 longer than S-2. I-L-6 straight (Fig. 10A). Measurements Female (n = 3) Idiosoma L 530 (530–663), W 419 (419–547); coxal field L 320 (320–361), Cx-III W 353 (353–406), ACG IL 244 (244–295), mL 126 (126–163), W 297 (296–336); infracapitular bay L 143 (133–151); gonopore L 98 (98–118), Ap L 120 (118–128), Ac1–3 L 35 (35–41), 39 (39–45), 30 (30–38); chelicera L 251 (251–275); infracapitulum L 227 (226–239); palp dL: P-1 35 (32–35), P-2 68 (68–79), P-3 75 (75–82), P-4 106 (106–110), P-5 27 (27–31); legs segments: I-L-1 dL 45 (45–53), I-L-2 dL 103 (100– 113), I-L-3 dL 103 (96–112), I-L-4 dL 153 (152–163), I-L-5 dL 166 (166–180), HB 37 (37–39), I-L-6 dL 134 (134–144), HB 34 (34–37), S-1 L 57 (57–72), S-2 L 47 (46–54); dL: II-L-1 53 (53–56), II-L-2 96 (89–104), II-L-3 96 (92–102), II-L-4 130 (130–141), II-L-5 140 (140–153), II-L-6 141 (140–152); dL: III-L-1 53 (51–59), III-L-2 87 (79–106), III-L-3 101 (101–115), III-L-4 154 (153–168), III-L-5 178 (170–189), III-L-6 163 (160–178); dL: IV-L-1 108 (108–120), IV-L-2 141 (135–141), IV-L-3 182 (178–195), IV-L-4 219 (219–239), IV-L-5 246 (234–255), IV-L-6 204 (197–218). Male Unknown. Remarks The new species Atractides (Atractides) longiprojectus sp. nov. is similar to Atractides inflatipalpis K. Viets, 1950 in the following points: (1) V 1 separated from V 2 ; (2) S-1 longer than S-2; (3) P-2 with an unobvious ventral projection. However, A. (A.) longiprojectus differs from A. inflatipalpis in the following aspects: (1) P-3 ventral margin slightly convex in A. (A.) longiprojectus, but straight in A. inflatipalpis; (2) I-L-6 straight in A. (A.) longiprojectus, but curved in A. inflatipalpis; (3) the pregenital sclerite of A. inflatipalpis in female much bigger than A. (A.) longiprojectus (Gerecke 2003)., Published as part of Zhang, Yu-Hao, Li, Hai-Tao, Li, Cai-Yun & Guo, Jian-Jun, 2022, New species of genus Atractides Koch, 1837 (Acari: Hydrachnidiae, Hygrobatidae) from Qinghai, China, pp. 121-142 in European Journal of Taxonomy 833 (1) on pages 133-134, DOI: 10.5852/ejt.2022.833.1889, http://zenodo.org/record/6958174, {"references":["Gerecke R. 2003. Water mites of the genus Atractides Koch, 1837 (Acari: Parasitengona: Hygrobatidae) in the western Palaearctic region: a revision. Zoological Journal of the Linnean Society 138 (2 - 3): 141 - 378. https: // doi. org / 10.1046 / j. 1096 - 3642.06 - 0.00051. x"]}

Atractides (Atractides) menyuanensis Zhang, Li & Guo sp. nov. urn:lsid:zoobank.org:act: C836E7CF-0A50-4334-AA1D-DDE500DDBCF8 Figs 6–8 Diagnosis Dorsal muscle attachment unsclerotized. I-L-5 longish, S-1 close to S-2. I-L-6 curved. Ac in an obtuse triangle; V 1 separated from V 2 . P-2 ventral margin slightly convex; P-3 ventral margin nearly straight; two long hairs on the ventral surface of P-4 near the base, sword seta near the base. Ac in a weakly curved line in female. Etymology The new species is named after the name of Menyuan Hui Autonomous County where the specimens were collected. Type material Holotype CHINA • ♂; Qinghai Province, Haibei Tibetan Autonomous Prefecture, Menyuan Hui Autonomous County; 37°31′31′′ N, 101°21′09′′ E; 2427 m a.s.l.; 29 Jul. 2020; Hai-Tao Li leg.; running water; GUGC, Slide No. QH-HY-2020072901. Paratypes CHINA • 5 ♀♀; same collection data as for holotype; GUGC, Slides No. QH-HY-2020072902 to 2020072906. Description Male (n = 1) Idiosoma oval, dorsal muscle attachment unsclerotized; all slit organs visible, So 1 near the eye capsule, So 2 near L 2 , So 3 at the level of D 2 , So 4 at the level of D 3 , So 5 on the outside of D 4 (Fig. 6A). ACG fused together and with a suture, PCG separated; apodemes from ACG not reaching to PCG; Ac in an obtuse triangle; V 1 separated from V 2 ; V 3 and V 4 forming a trapezoid, V 4 at the same level as the anterior of acetabular plate (Fig. 6B). Palp five-segmented; P-2 ventral margin slightly convex; P-3 ventral margin nearly straight; P-4 with numerous dorsal hairs, two long hairs on the ventral surface of P-4 near the base, sword seta near the base (Fig. 6E). I-L-5 longish, S-1 close to S-2; I-L-6 curved (Fig. 8A). Female (n = 5) Similar to male (Figs 6F, 7). Idiosoma oval; ACG and PCG significantly smaller than the male; Ac in a weakly curved line (Fig. 7B). Measurements Male (n = 1) Idiosoma L 708, W 582; coxal field L 352, Cx-III W 415, ACG IL 232, mL 92, W 323; infracapitular bay L 146; genital field L 141, Ac1–3 L 35, 35, 38; chelicera L 223; infracapitulum L 210; palp dL: P-1 37, P-2 70, P-3 63, P-4 122, P-5 31; legs segments: I-L-1 dL 57, I-L-2 dL 106, I-L-3 dL 101, I-L-4 dL 139, I-L-5 dL 182, HB 50, I-L-6 dL 102, HB 32, S-1 L 58, S-2 L 58; dL: II-L-1 57, II-L-2 95, II-L-3 93, II-L-4 135, II-L-5 158, II-L-6 157; dL: III-L-1 55, III-L-2 102, III-L-3 114, III-L-4 165, III-L-5 191, III-L-6 180; dL: IV-L-1 118, IV-L-2 138, IV-L-3 181, IV-L-4 240, IV-L-5 272, IV-L-6 217. Female (n = 5) Idiosoma L 1074 (1050–1113), W 935 (868–935); coxal field L 385 (385–432), Cx-III W 575 (550– 585), ACG IL 248 (248–299), mL 111 (111–130), W 373 (373–417); infracapitular bay L 130 (105– 163); gonopore L 168 (161–190), Ap L 157 (145–171), Ac1–3 L 38 (34–48), 39 (39–49), 37 (32–48); chelicera L 264 (253–283); infracapitulum L 215 (214–244); palp dL: P-1 46 (40–46), P-2 75 (75–86), P-3 66 (66–80), P-4 126 (121–145), P-5 37 (36–37); legs segments: I-L-1 dL 62 (62–77), I-L-2 dL 106 (106–136), I-L-3 dL 107 (107–126), I-L-4 dL 153 (151–176), I-L-5 dL 200 (200–233), HB 53 (53–59), I-L-6 dL 120 (120–132), HB 31 (31–36), S-1 L 63 (62–68), S-2 L 63 (62–69); dL: II-L-1 61 (61–72), II-L-2 93 (93–109), II-L-3 109 (98–124), II-L-4 144 (142–163), II-L-5 168 (168–204), II-L-6 170 (170– 191); dL: III-L-1 67 (65–84), III-L-2 102 (102–116), III-L-3 119 (115–137), III-L-4 178 (178–203), III-L-5 208 (206–233), III-L-6 200 (190–212); dL: IV-L-1 149 (129–149), IV-L-2 159 (156–179), IV-L-3 202 (191–234), IV-L-4 261 (252–294), IV-L-5 286 (276–321), IV-L-6 232 (223–255). Remarks The new species Atractides (Atractides) menyuanensis sp. nov. is similar to Atractides algeriensis Lundblad, 1942 in the following points: (1) apodemes from ACG not reaching to Cx-IV; (2) P-2 ventral margin slightly convex, P-3 ventral margin nearly straight; (3) Ac in a weakly curved line in female. However, A. (A.) menyuanensis differs from A. algeriensis in following aspects: (1) two long hairs on the ventral surface of P-4 near the base, sword seta near the base in A. (A.) menyuanensis, but the ventral surface of P-4 divided by two long ventral hairs in 1:1:1, sword seta at the middle of P- 4 in A. algeriensis; (2) S-1 much more close to S- 2 in A. (A.) menyuanensis than in A. algeriensis; (3) I-L-6 of A. algeriensis much longer and more slender than that of A. (A.) menyuanensis (Gerecke 2003)., Published as part of Zhang, Yu-Hao, Li, Hai-Tao, Li, Cai-Yun & Guo, Jian-Jun, 2022, New species of genus Atractides Koch, 1837 (Acari: Hydrachnidiae, Hygrobatidae) from Qinghai, China, pp. 121-142 in European Journal of Taxonomy 833 (1) on pages 131-133, DOI: 10.5852/ejt.2022.833.1889, http://zenodo.org/record/6958174, {"references":["Gerecke R. 2003. Water mites of the genus Atractides Koch, 1837 (Acari: Parasitengona: Hygrobatidae) in the western Palaearctic region: a revision. Zoological Journal of the Linnean Society 138 (2 - 3): 141 - 378. https: // doi. org / 10.1046 / j. 1096 - 3642.06 - 0.00051. x"]}

Atractides (Atractides) biprojectus Zhang, Li & Guo sp. nov. urn:lsid:zoobank.org:act: 06CA408F-1FC6-4FD0-AA2A-E94B784621C0 Figs 1–3 Diagnosis Male Dorsal muscle attachment unsclerotized. I-L-5 longish, S-1 and S-2 with blunt tips and with a narrow setal interspace between them; I-L-6 curved. Ac in an obtuse triangle, V1 separated from V2. P-2 and P-3 with a ventral projection respectively; P-4 divided by two long ventral hairs in sectors 2:3:1, sword seta between two ventral hair insertions and near the terminal. Female Similar to male. Ventral projection of P-2 not obvious, and P-3 ventral margin nearly straight. Etymology The Latin prefix ‘ bi -’ means two, in the male of the new species P-2 and P-3 are with a ventral projection respectively. Type material Holotype CHINA • ♂; Qinghai Province, Huangnan Tibetan Autonomous Prefecture, Zeku County, Maixiu Town; 35°18′64′′ N, 101°52′32′′ E; 3201 m a.s.l.; 17 Jul. 2020; Hai-Tao Li leg.; running water; GUGC, Slide No. QH-HY-2020071701. Paratypes CHINA • 3 ♂♂; same collection data as for holotype; GUGC, Slides No. QH-HY-2020071702 to 2020071704 • 1 ♀; same collection data as for holotype; GUGC, Slide No. QH-HY-2020071705. Description Male (n = 4) Idiosoma oval; dorsal muscle attachment unsclerotized, O 2 and D 1 at the same level; setae of D 1 and D 2 longer than others, setae of D 2 reaching to D 3; all slit organs visible, So 1 near the eye capsule and at the level of O 1 , So 2 in front of L 2 , So 3 near D 2 , So 4 at the middle of D 3 and L 4 ; So 5 behind D 4 (Fig. 1A). ACG fused together and with a suture, PCG separated; apodemes from ACG not reaching to Cx-IV. Acetabula three pairs and in an obtuse triangle; V 1 separated from V 2 ; V 3 and V 4 forming a trapezoid, V 4 at the same level as the middle of Ap (Fig. 1B). Palp five-segmented; P-2 and P-3 with a ventral projection respectively; P-4 with numerous dorsal hairs, and divided by two long ventral hairs in sectors 2:3:1, sword seta between two ventral hair insertions and near the terminal (Fig. 1E). I-L-5 longish, S-1 and S-2 both with blunt tips and with a narrow setal interspace between them; I-L-6 curved (Fig. 3A). Female (n = 1) Similar to male (Fig. 2). Setae of D1 and D2 shorter than that in male (Fig. 2A); ventral projection of P-2 not obvious, and P-3 ventral margin nearly straight (Fig. 1F). Measurements Male (n = 4) Idiosoma L 641 (585–645), W 546 (443–546); coxal field L 316 (314–325), Cx-III W 333 (333–347), ACG IL 237 (234–239), mL 125 (107–125), W 268 (268–284); infracapitular bay L 123 (118–127); genital field L 120 (119–120), Ac1–3 L 34 (33–38), 34 (34–42), 37(37–40); chelicera L 205 (204–207); infracapitulum L 159 (140–177); palp dL: P-1 29 (29–32), P-2 74 (68–74), P-3 62(59–66), P-4 95(95– 99), P-5 27 (27–29); legs segments: I-L-1 dL 48 (46–52), I-L-2 dL 93 (89–93), I-L-3 dL 80 (78–80), I-L-4 dL 119 (119–125), I-L-5 dL 163 (163–176), HB 53 (53–60), I-L-6 dL 119 (119–122), HB 22 (21–22), S-1 L 90 (78–90), S-2 L 74 (74–75); dL: II-L-1 47 (47–50), II-L-2 82 (74–82), II-L-3 71 (70–74), II-L-4 92 (92–102), II-L-5 116 (116–120), II-L-6 124 (124–127); dL: III-L-1 56 (53–57), III-L-2 90 (81–90), III-L-3 75 (73–77), III-L-4 124 (124–125), III-L-5 146 (146–154), III-L-6 141 (133–147); dL: IV-L-1 117 (117–120), IV-L-2 105 (102–113), IV-L-3 138 (135–138), IV-L-4 174 (174–180), IV-L-5 199 (199–208), IV-L-6 163 (162–170). Female (n = 1) Idiosoma L 902, W 721; coxal field L 390, Cx-III W 477, ACG IL 272, mL 137, W 355; infracapitular bay L 165; gonopore L 146, Ap L 140, Ac1–3 L 43, 47, 47; chelicera L 267; infracapitulum L 222; palp dL: P-1 38, P-2 84, P-3 84, P-4 123, P-5 34; legs segments: I-L-1 dL 64, I-L-2 dL 113, I-L-3 dL 114, I-L-4 dL 176, I-L-5 dL 242, HB 77, I-L-6 dL171, HB 26, S-1 L 120, S-2 L 106; dL: II-L-1 72, II-L-2 98, II-L-3 96, II-L-4 135, II-L-5 153, II-L-6 162; dL: III-L-1 69, III-L-2 100, III-L-3 107, III-L-4 168, III-L-5 193, III-L-6 181; dL: IV-L-1 153, IV-L-2 141, IV-L-3 184, IV-L-4 231, IV-L-5 267, IV-L-6 211. Remarks The new species Atractides (Atractides) biprojectus sp. nov. is similar to Atractides yazdensis Pešić, Smit & Saboori, 2021 in the following points: (1) male P-2 and P-3 with ventral projections; (2) setae S-1 and S-2 separated, with a narrow setal interspace; (3) V 1 separated from V 2 . However, A. (A.) biprojectus differs from A. yazdensis in following aspects: (1) P-4 sword seta between two ventral hair insertions in A. (A.) biprojectus, but slightly proximal to posteroventral hair in A. yazdensis; (2) apodemes from ACG not reaching to Cx-IV in A. (A.) biprojectus, but reaching to Cx-IV in A. yazdensis; (3) genital field of A. (A.) biprojectus much rounder than that of in A. yazdensis (Pešić et al. 2021)., Published as part of Zhang, Yu-Hao, Li, Hai-Tao, Li, Cai-Yun & Guo, Jian-Jun, 2022, New species of genus Atractides Koch, 1837 (Acari: Hydrachnidiae, Hygrobatidae) from Qinghai, China, pp. 121-142 in European Journal of Taxonomy 833 (1) on pages 123-127, DOI: 10.5852/ejt.2022.833.1889, http://zenodo.org/record/6958174, {"references":["Pesic V., Smit H. & Saboori A. 2021. New records of the water mite genus Atractides Koch, 1837 from Iran (Acari: Hydrachnidia: Hygrobatidae). Ecologica Montenegrina 44: 1 - 10. https: // doi. org / 10.37828 / em. 2021.44.1","Pesic V. & Smit H. 2021 a. A new species of the genus Atractides Koch, 1837 from Turkey (Acari: Hydrachnidia: Hygrobatidae). Ecologica Montenegrina 43: 44 - 50. https: // doi. org / 10.37828 / em. 2021.43.6"]}

The link contains the used radiosonde datain the creation of this manuscript

The link contains the used radiosonde datain the creation of this manuscript

Lin, Chen-Xue, Guo, Jian-Qiang, Zhou, Xin-Xin, Liao, Wen-Bo, Mao, Ling-Feng (2022): Asplenium danxiaense sp. nov. (Aspleniaceae, Aspleniineae), a new tetraploid fern species from Guangdong, China, based on morphological and molecular data. European Journal of Taxonomy 798: 162-173, DOI: https://doi.org/10.5852/ejt.2022.798.1679, URL: http://dx.doi.org/10.5852/ejt.2022.798.1679

Asplenium danxiaense K.W.Xu sp. nov. urn:lsid:ipni.org:names:77260762-1 Figs 3A, E, 4, 5A���B Diagnosis Asplenium danxiaense K.W.Xu sp. nov. somewhat resembles A. coenobiale and A. pulcherrimum by its dark brown to black rhizome scale with fimbriate to subentire margin, shiny dark brown to black, rigid and threadlike stipe and rachis, finely dissected frond, and lophate (cristate-alate) perispore, but the former has rhizome scales narrowly triangular to lanceolate, with a short apical tail, basal-most basiscopic secondary pinnae usually largest, fertile segment scarce, and exospore length usually more than 50 ��m. In contrast, A. coenobiale and A. pulcherrimum have scales narrowly triangular to linearsubulate, with a long apical tail, basal acroscopic pinnule usually largest, fertile segment abundant, and exospore length usually less than 50 ��m. Etymology Based on the mountain name, Danxia, in northern Guangdong, China, and the Latin suffix, - ense, of origin, referring to the type locality of the species. Type material Type CHINA ��� Guangdong province, Shaoguan City, Renhua County, Danxia mountain; 25��01���41.076��� N, 113��41���44.982��� E; elev. 150 m; in evergreen broad-leaved forest in a cave of Danxia landform; 12 May 2021; Jian-Qiang Guo & Xin-Xin Zhou XKW674; holotype: NF!; isotype: SYS!. Description Plants up to 30 cm tall. Rhizome erect, apex scaly; scales dark brown to black, narrowly triangular to lanceolate, (2.5���)4���5 �� 0.4���0.9 cm, clathrate, margin fimbriate to subentire, apex shortly hairpointed. Fronds caespitose; stipe shiny, purplish black, 10���16(���20) cm, terete, rigid and threadlike, subglabrous; rachis shiny purplish black, becoming green in upper half toward apex, sulcate adaxially, subglabrous; lamina firmly herbaceous, green, subglabrous, triangular to ovate-triangular, 8���12 �� 4���7 cm, base truncate, (2 or) 3-pinnate, apex acuminate; primary pinnae in (6���) 8���14 pairs, subopposite to alternate, overlapping, stalk short, purplish black to green abaxially, basal pinnae largest, ovatelanceolate, 3���6 �� 1.5���2 cm, base obliquely truncate to truncate, apex subacute; secondary pinnae in 3���7 pairs, anadromous, basal basiscopic secondary pinnae usually largest, triangular-ovate, 0.7���1.5 �� 0.5���0.8 cm, stalk short to subsessile, base asymmetrical, acroscopic side truncate, basiscopic side cuneate, apex obtuse; ultimate segments 2���4 pairs, ovate-oblong to linear, apex with 2���4 short and broadly triangular, obtuse to submucronate or sharp teeth. Costa and costules sulcate adaxially, green, veins slightly raised or flat adaxially, anadromous, 1 vein per segment, not reaching margin. Sori 1 per fertile, forked and pouch-shaped segment, medial to subterminal on acroscopic veinlet, oval to linear, 1���3 mm long; indusium grayish green, oval to linear, membranous, margin nearly entire, persistent, opening toward costules, persistent. Spores brown to dark brown, exospore 52���60 ��m long, lophate (cristate-alate) perispore. Additional material CHINA ��� Guangdong province, Shaoguan City, Renhua County, Danxia mountain; 25��01���41.076��� N, 113��41���44.982��� E; elev. 150 m; in evergreen broad-leaved forest in a cave of Danxia landform; 12 May 2021; Jian-Qiang Guo & Xin-Xin Zhou XKW675; NF!. Distribution and habitat Asplenium danxiaense sp. nov. is only known from Guangdong, China, growing in a cave of Danxia mountain in evergreen broad-leaved forest, at the elevation of 100��� 300 m. Vernacular name We propose a Chinese name, Dānxi��shān tiěji��oju�� (���DZ��Ũffldz) to reflect the type locality of the new species. Conservation Status We provisionally assess Asplenium danxiaense sp. nov. as Critically Endangered based on criterion D of IUCN (2012). Only one population and fewer than 50 individuals of A. danxiaense sp. nov. are known from Danxia mountain. It was not seen by one of us during separate expeditions to nearby sites on Danxia mountain., Published as part of Lin, Chen-Xue, Guo, Jian-Qiang, Zhou, Xin-Xin, Liao, Wen-Bo & Mao, Ling-Feng, 2022, Asplenium danxiaense sp. nov. (Aspleniaceae, Aspleniineae), a new tetraploid fern species from Guangdong, China, based on morphological and molecular data, pp. 162-173 in European Journal of Taxonomy 798 on pages 165-169, DOI: 10.5852/ejt.2022.798.1679, http://zenodo.org/record/6341216, {"references":["IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1. Second edition. Gland, Switzerland. Available from https: // portals. iucn. org / library / node / 10315 [accessed 5 November 2021]."]}

A global continental blended high-resolution planetary boundary layer height (PBLH) dataset is generated with machine learning algorithms, covering a time period from 2017to 2021 with a 3-hour and 0.25º resolution in space and time. The radiosonde dataset contains around 180 million profiles over 370 stations across the world. The machine learning model was established by taking the parameters derived from ERA5 reanalysis and GLDAS as input while PBLH determined from radiosonde measurements was used as the learning target. Once a start-of-the-art model has been eventually trained, the model was then used to predict PBLHs at other grids across the globe with parameters acuqired or derived from ERA5 and GLDAS, includingPBLH,lower tropospheric stability, near-surface wind speed and standard deviation of orography extracted from ERA5 reanalysis, sensible heat flux, latent heat flux, transpiration, evapotranspiration, downward long wave radiation, downward short wave radiation,total precipitation rate andnear-surface pressure from GLDAS. Overall, this harmonized high-resolution PBLH dataset is outstanding in terms of both spatiotemporal coverage and good accuracy, as compared to the PBLHs retrieved from radiosonde.

A global continental blended high-resolution planetary boundary layer height (PBLH) dataset is generated with machine learning algorithms, covering a time period from 2011 to 2021 with a 3-hour and 0.25º resolution in space and time. The radiosonde dataset contains around 180 million profiles over 370 stations across the world. The machine learning model was established by taking the parameters derived from ERA5 reanalysis and GLDAS as input while PBLH determined from radiosonde measurements was used as the learning target. Once a start-of-the-art model has been eventually trained, the model was then used to predict PBLHs at other grids across the globe with parameters acuqired or derived from ERA5 and GLDAS, includingPBLH,lower tropospheric stability, near-surface wind speed and standard deviation of orography extracted from ERA5 reanalysis, sensible heat flux, latent heat flux, transpiration, evapotranspiration, downward long wave radiation, downward short wave radiation,total precipitation rate andnear-surface pressure from GLDAS. Overall, this harmonized high-resolution PBLH dataset is outstanding in terms of both spatiotemporal coverage and good accuracy, as compared to the PBLHs retrieved from radiosonde.

The key to the subfamilies, genera and subgenera of Limnocharidae 1. Gnathosoma attached to a long protrusible tube of soft integument, the former well separated from the first coxae; palp segments 3, occasionally 2, 4 or 5; legs without swimming seta............................................................................................ Subfamily Rhyncholimnocharinae Lundblad, 1936 2 ��� Gnathosoma not attached to a long protrusible tube of soft integument; gnathosoma always adjacent to the first pair of coxae; palp segments 4 or 5; swimming setae absent or present......................... 5 2. Palp segments not fused, with 5 segments; P-V attached to the ventral surface, rather than the distal end of P-IV; dorsalia absent.................................................Genus Pentachares Li & Guo gen. nov. ��� Palp segments fused, palp with 3, occasionally 2, 4 segments......................................................... 3 3. Palp with 4 segments or occasionally 3; medial part of palp curved dorsally; without dorsalia.................................................................................................... Genus Austrolimnochares Harvey, 1998 ��� Palp with 3 segments or occasionally 2; dorsal margin of the second palp segment straight; dorsum with or without paired sclerites...............................Genus Rhyncholimnochares Lundblad, 1936 4 4. Terminal segment of palp relatively large, with much of the segment visible proximal to the terminal setae.............................................................................. Subgenus Paralimnochares Lundblad, 1937 ��� Terminal segment of palp greatly reduced, the terminal setae are prominent but the actual segment somewhat hidden.................................................. Subgenus Rhyncholimnochares Lundblad, 1936 5. Palp segments not fused, palp with 5 segments..............Subfamily Limnocharinae Grube, 1859 6 ��� Palp segments fused, palp with 4 segments.... Subfamily Neolimnocharinae Gerecke et al., 2020 * 6. P-V inserted on the medioventral portion of P-IV.................... Genus Laterolimnochares Jin, 1999 ��� P-V normally inserted on the distal end of P-IV....................Genus Limnochares Latreille, 1796 7 7. Legs with swimming setae.........................................................Subgenus Cyclothrix Wolcott, 1905 ��� Legs without swimming setae..............................................Subgenus Limnochares Latreille, 1796 * The definition of Neolimnocharinae is mainly based on larval characters. This larval-based taxonomy results in a parallel system in Limnocharidae, for which taxa have previously been based on adults. On the other hand, Gerecke et al. (2020) provided sufficient conditions to make us think that the establishment of subfamily Neolimnocharinae is reasonable. To avoid confusion in the taxonomy, four larval-based genera (Veliacola, Archaeveliacola, Armaveliacola, Isoveliacola) and genus Neolimnochares are not listed in this adult-charactered binomial key., Published as part of Jin, Dao-Chao & Guo, Jian-Jun, 2022, Contributions to the knowledge of Eylaoidea (Acari: Hydrachnidiae) from China, pp. 53-70 in European Journal of Taxonomy 787 (1) on page 67, DOI: 10.5852/ejt.2021.787.1613, http://zenodo.org/record/5817957, {"references":["Lundblad O. 1936. Dritte Mitteilung uber neue Wassermilben aus Santa Catharina in Sudbrasilien. Zoologischer Anzeiger 116 (7 - 8): 200 - 211.","Harvey M. S. 1998. Unusual new water mites (Acari: Hydracarina) from Australia, Part 1. Records of the Western Australian Museum 19: 91 - 106.","Gerecke R., Wohltmann A., Smith B. P. & Judson M. 2020. New taxa of the water mite family Limnocharidae (Actinotrichida: Eylaoidea) parasitising tropical water bugs of the genus Rhagovelia Mayr, 1865 (Hemiptera: Veliidae) reveal unsuspected diversity of larval morphologies. Aquatic Insects 41 (4): 273 - 323. https: // doi. org / 10.1080 / 01650424.2020.1811876","Jin D. C. 1999. Laterolimnochares huangshanensis gen. nov. et sp. nov. of Limnocharidae from Huangshan, Anhui (Acari: Eylaoidea). Acta entomologica Sinica 42 (3): 311 - 314.","Latreille P. - A. 1796. Precis des Caracteres Generiques des Insectes, Disposes dans un Ordre Naturel. Prevot, Paris. https: // doi. org / 10.5962 / bhl. title. 58411"]}

Family Eylaidae Leach, 1816 Eylaidae Leach, 1816: 399. Eylaidae ��� Cook 1974: 42���46. ��� Viets 1987: 236., Published as part of Jin, Dao-Chao & Guo, Jian-Jun, 2022, Contributions to the knowledge of Eylaoidea (Acari: Hydrachnidiae) from China, pp. 53-70 in European Journal of Taxonomy 787 (1) on page 55, DOI: 10.5852/ejt.2021.787.1613, http://zenodo.org/record/5817957, {"references":["Leach W. E. 1816. A tabular view of the external characters of four classes of animals, which Linne arranged under Insecta; with the distribution of the genera composing three of these classes into orders, & c. and descriptions of several new genera and species. Transactions of the Linnean Society of London 11: 306 - 400. https: // doi. org / 10.1111 / j. 1096 - 3642.1813. tb 00065. x","Cook D. R. 1974. Water mite genera and subgenera. Memoirs of the American Entomological Institute 21: 1 - 860.","Viets K. O. 1987. Die Milben des Susswassers (Hydrachnellae und Halacaridae (part.), Acari). II.: Katalog. Sonderbande des Naturwissenschaftlichen Vereins in Hamburg 8: 1 - 1012."]}

Genus Pentachares Li & Guo gen. nov. urn:lsid:zoobank.org:act: 080C87A4-FFE2-459E-AC36-6A414126B7F0 Type species Pentachares sinensis Li & Guo gen. et sp. nov. Etymology Five-segmented palp is the main diagnosis feature of this new genus. ���Pent-��� means five, just represents the five segments of palp in this new genus. Diagnosis Characters of Rhyncholimnocharinae; palp five-segmented, P-V attached to the middle surface, rather than the distal end of P-IV; dorsalia absent; without swimming setae on legs. Habitat Same as subfamily. Distribution Oriental realm. Remarks The new genus presents the diagnostic features of both two subfamilies in Limnocharidae: a long tube of protrusible integument proves that it belongs to Rhyncholimnocharinae, meanwhile the palp with five segments indicates it is from Limnocharinae. The phylogenetic value of the palp-fused as a character has been questioned (Cook 1974; Gerecke et al. 2020). Therefore, we arrange the new genus in Rhyncholimnocharinae, according to the feature of a tubular extension of integument., Published as part of Jin, Dao-Chao & Guo, Jian-Jun, 2022, Contributions to the knowledge of Eylaoidea (Acari: Hydrachnidiae) from China, pp. 53-70 in European Journal of Taxonomy 787 (1) on page 61, DOI: 10.5852/ejt.2021.787.1613, http://zenodo.org/record/5817957, {"references":["Cook D. R. 1974. Water mite genera and subgenera. Memoirs of the American Entomological Institute 21: 1 - 860.","Gerecke R., Wohltmann A., Smith B. P. & Judson M. 2020. New taxa of the water mite family Limnocharidae (Actinotrichida: Eylaoidea) parasitising tropical water bugs of the genus Rhagovelia Mayr, 1865 (Hemiptera: Veliidae) reveal unsuspected diversity of larval morphologies. Aquatic Insects 41 (4): 273 - 323. https: // doi. org / 10.1080 / 01650424.2020.1811876"]}

Eylais (Meteylais) hamata Koenike, 1897 Figs 1���5 Diagnosis Eye-plate relatively long; eye bridge almost uniform-in-width, straight or slightly curved; longer than eye capsules; O 2 inserted into a pair of sclerotic loops on eye bridge; excretory pore with a sclerotized ring; E 4 behind the middle of Cx-IV. Material examined CHINA ��� 3 ♂♂, 2 ♀♀; Qinghai Province, Qinghaihu National Nature Reserve; 36��36���23��� N, 100��46���35��� E; 3209 m a.s.l.; 7 Aug. 2020; Dong-Dong Li & Hai-Tao Li leg.; water depth 20���40 cm, located in a prairie, with many aquatic plants on the bottom; GUGC, slides No. QH-EY-20200801 to 20200805. Description Male (n = 3) BODY. Dull red color. Idiosoma extremely soft and oval; integument with fingerprint-like striae. No sclerites except eye-plate in dorsal view (Fig. 1A). Eye-plate relatively long; eye bridge almost uniformin-width, straight or slightly curved; O 2 inserted into a pair of sclerotic loops on eye bridge; a pair of humps existed sometimes (Figs 1B, 2A���B). COXAE. The apical angles of Cx-I���IV with 2���4 setae, line of setae on each coxa; all coxae striated, like elephant skin (Fig. 1E). GENITALIA. Genital field with numerous tapered setae; a pair of sclerotic genital flaps with many fine setae and two small and narrow transverse genital sclerites surrounding gonopore (Fig. 2C); V1 free and close to rear side of ACG; acetabula rounded and stalked, occupying all over the integument; excretory pore with a sclerotized ring; E 4 behind the middle of Cx-IV and at the level of the excretory pore (Fig. 1E). GNATHOSOMA. Cuticle porous; basal segments of chelicera large, cheliceral claws short and blunt, projecting through the center of the filled wheel-like membrane; pharynx with a pair of bulges at the lateral bottom, two strongly sclerotized rings on pharynx (Figs 1C, 2D). PALP. Five-segmented; P-I with 1���2 dorsal setae, apical setae feathered or smooth; P-II with three setae on dorsum, three lateral setae in a line (feathered or not) on outer side, and 4���5 distal setae (feathered or not) and 1���2 lateral setae on inner side; P-III with six ventrodistal feathered setae on inner side, 5���6 setae in a line (feathered or not) and one anteroventral seta (feathered or not) on outer side; P-IV relatively long, with one seta at about ⅓ of the total length of the segment on outer side, and numerous setae on inner side; P-V with two dorsal and 3���4 lateral setae, and 1���2 heavy setae on outer side, 2���3 setae on inner side, and with a six-toothed claw at distal end (Figs 3C���D, 4A���B). Female (n = 2) Bright red color; similar to male; gonopore without sclerotized genital flaps; excretory pore relatively round (Fig. 1D); P-IV as broad as in the male but shorter, P-V hook-like (Fig. 3A���B). Measurements Male (n = 3) Idiosoma 1859���2539 in length, 1427���2138 in width; ACG length 695���792 (from apex of Cx-I to Cx- II base angle); PCG length 699���855 (from apex of Cx-III to Cx-IV base angle); eye plate 393���464 in length, eye bridge length 158���197, eye capsules 151���176 in length, 114���133 in width; capitulum length 596���691 (from chelicera peak to pharynx bottom), mouth opening 173���199 in diameter, pharynx 282���334 in length; gonopore length 238���282; sclerotization of excretory pore 76���79 in diameter; dorsal lengths of palp segments: P-I 114���142, P-II 157���180, P-III 154���210, P-IV 304���364, P-V 173���199; P-IV 81���97 in width; dorsal lengths of leg segments: I-L-2 340���355, I-L-3 309���324, I-L-4 382���391, I-L- 5 378���385, I-L-6 384���397. II-L-2 374���389, II-L-3 362���368, II-L-4 422���431, II-L-5 489���492, II-L-6 383���389. III-L-2 450���454, III-L-3 418���427, III-L-4 450-459, III-L-5 502���506, III-L-6 431���434. IV-L-2 453���462, IV-L-3 496���501, IV-L-4 551���557, IV-L-5 585���591, IV-L-6 448���454. Female (n = 2) Idiosoma 1725���1814 in length, 1412���1468 in width; ACG length 529���540; PCG length 540-561; eye plate 343���365 in length, eye bridge length 168���184, eye capsules 123���130 in length, 88���89 in width; capitulum length 501, mouth opening 127���152 in diameter, pharynx 254���256 in length; gonopore length 253���259; sclerotization of excretory pore 45���48 in diameter; dorsal lengths of palp segments: P-I 95��� 110, P-II 130���135, P-III 136���148, P-IV 246���256, P-V 156 (147���156), P-IV 87 (87���95) in width; dorsal lengths of leg segments: I-L-2 233���238, I-L-3 204���210, I-L-4 239���240, I-L-5 289���296, I-L-6 285���296. II-L-2 262���265, II-L-3 233���241, II-L-4 274���278, II-L-5 328���334, II-L-6 316���321. III-L-2 320���322, III-L-3 270���274, III-L-4 324���326, III-L-5 337���347, III-L-6 345���352. IV-L-2 228���231, IV-L-3 269��� 274, IV-L-4 331���338, IV-L-5 383���391, IV-L-6 369���380. Remarks Eylais (M.) hamata is widely distributed all over the world (Piersig 1897 ���1900; Halbert 1903; Sezek & ��zkan 2000). Lundblad (1936) had reported this species from Northwest China, while the previous descriptions were relatively simple (Uchida & Imamura 1951). Current specimens, which were also collected from Northwest China (Qinghaihu National Nature Reserve), are similar with the description mentioned above, especially their eye plate, which is considered as the most distinguishing feature. The only difference with the Turkish population is the body size: males ranging from 1859 to 2539, females ranging from 1725 to 1824 in our specimens, but with the Turkish population, 2250 for the male and 4200 for the female (Sezek & ��zkan 2000). This problem can be interpreted by Lanciani (1969, 1970) that the size of newly emerged eylaid mites could increase continuously in both sexes, even during their adult stages, and the gravid females could grow twice as long. In summary, we attribute our specimens to E. (M.) hamata., Published as part of Jin, Dao-Chao & Guo, Jian-Jun, 2022, Contributions to the knowledge of Eylaoidea (Acari: Hydrachnidiae) from China, pp. 53-70 in European Journal of Taxonomy 787 (1) on pages 55-59, DOI: 10.5852/ejt.2021.787.1613, http://zenodo.org/record/5817957, {"references":["Piersig R. 1897 - 1900. Deutschlands Hydrachniden. Zoologica (Stuttgart) 9 (22): 7 + 1 - 601. Available from https: // www. biodiversitylibrary. org / page / 9095151 [accessed 17 Nov. 2021].","Halbert J. N. 1903. Notes on Irish species of Eylais. Annals and Magazine of Natural History Series 7 12 (71): 505 - 515. https: // doi. org / 10.1080 / 00222930308678888","Sezek F. & Ozkan M. 2000. A study of Eylais rahmi Ozkan, 1982 (Acari: Hydrachnellae: Eylaidae). International Journal of Acarology 26 (2): 161 - 166. https: // doi. org / 10.1080 / 01647950008684181","Lundblad O. 1936. Dritte Mitteilung uber neue Wassermilben aus Santa Catharina in Sudbrasilien. Zoologischer Anzeiger 116 (7 - 8): 200 - 211.","Uchida T. & Imamura T. 1951. Some water mites from China. Journal of the Faculty of Science, Hokkaido University, Series VI (Zoology) 10 (3 - 4): 324 - 358.","Lanciani C. A. 1969. Three species of Eylais (Acari: Eylaidae) parasitic on aquatic Hemiptera. Transactions of the American Microscopical Society 88 (3): 356 - 365. https: // doi. org / 10.2307 / 3224702","Lanciani C. A. 1970. New species of Eylais (Acari: Eylaidae) parasitic on aquatic Coleoptera. Transactions of the American Microscopical Society 89 (2): 169 - 188. https: // doi. org / 10.2307 / 3224371"]}

Genus Pentachares Li & Guo gen. nov. urn:lsid:zoobank.org:act: 080C87A4-FFE2-459E-AC36-6A414126B7F0 Type species Pentachares sinensis Li & Guo gen. et sp. nov. Etymology Five-segmented palp is the main diagnosis feature of this new genus. “Pent-” means five, just represents the five segments of palp in this new genus. Diagnosis Characters of Rhyncholimnocharinae; palp five-segmented, P-V attached to the middle surface, rather than the distal end of P-IV; dorsalia absent; without swimming setae on legs. Habitat Same as subfamily. Distribution Oriental realm. Remarks The new genus presents the diagnostic features of both two subfamilies in Limnocharidae: a long tube of protrusible integument proves that it belongs to Rhyncholimnocharinae, meanwhile the palp with five segments indicates it is from Limnocharinae. The phylogenetic value of the palp-fused as a character has been questioned (Cook 1974; Gerecke et al. 2020). Therefore, we arrange the new genus in Rhyncholimnocharinae, according to the feature of a tubular extension of integument.

Jin, Dao-Chao, Guo, Jian-Jun (2022): Contributions to the knowledge of Eylaoidea (Acari: Hydrachnidiae) from China. European Journal of Taxonomy 787 (1): 53-70, DOI: https://doi.org/10.5852/ejt.2021.787.1613, URL: http://dx.doi.org/10.5852/ejt.2021.787.1613

Subfamily Rhyncholimnocharinae Lundblad, 1936 Rhyncholimnocharinae Lundblad, 1936: 203. Rhyncholimnocharinae ��� Cook 1974: 41. ��� Viets 1987: 679. Diagnosis (after Cook 1974, modified) Character of the family Limnocharidae; gnathosoma attached to a long tubular extension of integument; palp segments 3 (but terminal segment may be greatly reduced giving the appearance of a two-segmented palp), occasionally 2, 4 or 5; dorsum with or without paired sclerites (Tuzovskij & Gerecke 2020). Habitat Running waters (sediment of organic detritus, dead wood and leaf litter of pools, or in mosses at stronger flow velocity). Distribution Nearctic, Neotropical, Australian and Oriental realm. Remarks There are a total of 24 species in this subfamily including the new species herein described (Tuzovskij & Gerecke 2020). Most species have a three-segmented palp, while Rhyncholimnochares tapiarum Tuzovskij & Gerecke, 2020 presents a two-segmented palp and R. expansiseta Cook, 1980 shows the phenomenon of its dorsal and ventral edges of P-I merged with the second segment (Tuzovskij & Gerecke 2020). The palp of Austrolimnochares womersleyi (Lundblad, 1952) has 4 or occasionally 3 segments (Harvey 1990). The new genus Pentachares Li & Guo gen. nov. established herein presents a five-segmented palp without any fusion. So, we modified the previous diagnosis., Published as part of Jin, Dao-Chao & Guo, Jian-Jun, 2022, Contributions to the knowledge of Eylaoidea (Acari: Hydrachnidiae) from China, pp. 53-70 in European Journal of Taxonomy 787 (1) on pages 60-61, DOI: 10.5852/ejt.2021.787.1613, http://zenodo.org/record/5817957, {"references":["Lundblad O. 1936. Dritte Mitteilung uber neue Wassermilben aus Santa Catharina in Sudbrasilien. Zoologischer Anzeiger 116 (7 - 8): 200 - 211.","Cook D. R. 1974. Water mite genera and subgenera. Memoirs of the American Entomological Institute 21: 1 - 860.","Viets K. O. 1987. Die Milben des Susswassers (Hydrachnellae und Halacaridae (part.), Acari). II.: Katalog. Sonderbande des Naturwissenschaftlichen Vereins in Hamburg 8: 1 - 1012.","Tuzovskij P. V. & Gerecke R. 2020. New water mite species of the genus Rhyncholimnochares Lundblad (Acariformes, Limnocharidae) from Central and South America, with a key to all known species of the genus. Annales de Limnologie - International Journal of Limnology 56 (15): 1 - 18. https: // doi. org / 10.1051 / limn / 2020013","Harvey M. S. 1990. A review of the water mite family Limnocharidae in Australia (Acarina). Invertebrate Taxonomy 3: 483 - 493. https: // doi. org / 10.1071 / IT 9890483"]}

Pentachares sinensis Li & Guo gen. et sp. nov. urn:lsid:zoobank.org:act: EAE7CCA4-5C4C-410E-B226-09B3FC6D913D Figs 6���9 Diagnosis Capitulum attached to a long tubular extension of integument; palp five-segmented, P-V attached to membranous protuberance at medioventral surface of P-IV, heavy seta and a pair of setae at distal end; dorsum without sclerites except for the frontal plate; on frontal plate, median eye invisible, rod-like O1 and A 1 sitting at anterior part, A 2 at the middle of eye capsules, bifurcated O 2 near the middle of posterior part; 50���60 acetabula per side of genital field; excretory pore with a sclerotized ring; legs without swimming setae, claws simple. Etymology Named after the country where the specimen collected. ���Sina-��� means China. Type material Holotype CHINA ��� ♀; Guangdong Province, Xiangtoushan National Nature Reserve; 23��16���14��� N, 114��22���14��� E; 491 m a.s.l.; 24 Aug. 2019; Min Ao & Hai-Tao Li leg.; water depth 5���10 cm, located at the top of a hill, with organic detritus, dead wood and leaves on the bottom; GUGC, slide No. GD-LI-20190801. Description Female (n = 1) BODY. Amber in color, lateral eyes red, gnathosoma invisible in dorsal view when alive (Fig. 6). Idiosoma extremely soft and extensible, integument papillate. Dorsum without sclerites in addition to frontal plate (Fig. 7A). Gnathosoma porous, in the ventral view rounded, rostrum relatively short; mouth disk with a loop of fine setae; porous basal segment of chelicera relatively large, proximal part of cheliceral stylet connected with basal segment vertically (Fig. 7B). Anterior part of frontal plate longer than eye capsule region; anterior margin concave, sclerotized inward; median eye invisible; O 1 rod-like and terminal expanded; A 2 at the middle of eye capsules; O 2 on the convex lateromedial plate and bifurcated; posterior part of frontal plate long, lateral margins covered by small tubercles densely; posterior margin straight; keel approximately as long as the frontal plate (Fig. 7C). PALP. Five-segmented; P-I without seta; P-II with one dorsal and 3���4 ventral setae; a dorsodistal and 2 ventrolateral setae on P-III; P-IV with three ventral setae and one lateral heavy seta; P-V attached to a membranous protuberance at medioventral surface of P-IV, and bearing three setae at distal end (Fig. 8A���B). COXAE. Cx-I inner-apical angles connected by a narrow bridge. Cx-I anterior margins concave, with uniformly stout setae. E 1 and E 2 on the membranous interspace between coxal groups. Cx-III triangular; Cx-IV elongated and triangular; all coxae porous (Fig. 8C). GENITALIA. Genital field with 50���60 acetabula per side, acetabula inverted teardrop-shaped; gonopore with a slightly sclerotic plate with fine setae surrounded; a pair of elevated, longish sclerites with two apical setae behind gonopore; excretory pore with a sclerotized ring (Fig. 8C). LEGS. With numerous stout setae except by the swimming setae, terminal segments of all legs with a loop of short setae; claws simple (Fig. 9A���D). Male Unknown. Measurements Idiosoma 2083 in length (with gnathosoma not extended), 1384 in width; protrusible membrane length 291 (flexibility maybe leading to inaccuracy); ACG length 368 (from anteromedial to posteromedial corner), PCG length 451 (from anteromedial to posteromedial corner); ocular plate 388 in length (from anteromedial to posteromedial corner), anterior part length 90, eye capsule region 49 in length, 114 in width, keel length 346; chelicera length 281; infracapitulum 154 in length (from the middle of infracapitulum furrow to rostrum); excretory pore length 71, sclerotic ring 81; dorsal lengths of palp segments: P-I 18, P-II 63, P-III 27, P-IV 39, P-V 33, P-IV heavy seta length 35, P-V apical seta length 23; dorsal lengths of leg segments: I-L-1 66, I-L-2 236, I-L-3 164, I-L-4 147, I-L-5 164, I-L-6 130. II- L-1 67, II-L-2 235, II-L-3 155, II-L-4 142, II-L-5 160, II-L-6 142. III-L-1 71, III-L-2 217, III-L-3 138, III-L-4 137, III-L-5 177, III-L-6 139. IV-L-1 62, IV-L-2 264, IV-L-3 184, IV-L-4 199, IV-L-5 218, IV- L-6 172. Remarks Pentachares sinensis Li & Guo gen. et sp. nov. with five-segmented palp is clearly distinguished from other species of the subfamily Rhyncholimnocharinae, but similar to Laterolimnochares huangshanensis Jin, 1999 and Limnochares spinosa Smit & Pesic, 2014. Pentachares sinensis Li & Guo gen. et sp. nov. differs from La. huangshanensis in the following aspects: 1) with a protrusible tube of soft integument in P. sinensis Li & Guo gen. et sp. nov., while without in La. huangshanensis; 2) body color amber in P. sinensis Li & Guo gen. et sp. nov., while pink in La. huangshanensis; 3) O 1 rod-shaped in P. sinensis Li & Guo gen. et sp. nov., while pectinate in La. huangshanensis; 4) terminal heavy seta of P-V smooth in P. sinensis Li & Guo gen. et sp. nov., while feathered in La. huangshanensis; and 5) the setae on coxae short in P. sinensis Li & Guo gen. et sp. nov., but long in La. huangshanensis. Pentachares sinensis Li & Guo gen. et sp. nov. differs from Li. spinosa: 1) with a protrusible tube of soft integument in P. sinensis Li & Guo gen. et sp. nov., while without in Li. spinosa; 2) O 1 and O 2 not smooth in P. sinensis Li & Guo gen. et sp. nov., but smooth in Li. spinosa; 3) terminal heavy seta of P-IV smooth in P. sinensis Li & Guo gen. et sp. nov., but feathered in Li. spinosa; and 4) the number of acetabula 50���60 in P. sinensis Li & Guo gen. et sp. nov., while only 40���50 in Li. spinosa. The key to the subfamilies, genera and subgenera of Limnocharidae 1. Gnathosoma attached to a long protrusible tube of soft integument, the former well separated from the first coxae; palp segments 3, occasionally 2, 4 or 5; legs without swimming seta............................................................................................ Subfamily Rhyncholimnocharinae Lundblad, 1936 2 ��� Gnathosoma not attached to a long protrusible tube of soft integument; gnathosoma always adjacent to the first pair of coxae; palp segments 4 or 5; swimming setae absent or present......................... 5 2. Palp segments not fused, with 5 segments; P-V attached to the ventral surface, rather than the distal end of P-IV; dorsalia absent.................................................Genus Pentachares Li & Guo gen. nov. ��� Palp segments fused, palp with 3, occasionally 2, 4 segments......................................................... 3 3. Palp with 4 segments or occasionally 3; medial part of palp curved dorsally; without dorsalia.................................................................................................... Genus Austrolimnochares Harvey, 1998 ��� Palp with 3 segments or occasionally 2; dorsal margin of the second palp segment straight; dorsum with or without paired sclerites...............................Genus Rhyncholimnochares Lundblad, 1936 4 4. Terminal segment of palp relatively large, with much of the segment visible proximal to the terminal setae.............................................................................. Subgenus Paralimnochares Lundblad, 1937 ��� Terminal segment of palp greatly reduced, the terminal setae are prominent but the actual segment somewhat hidden.................................................. Subgenus Rhyncholimnochares Lundblad, 1936 5. Palp segments not fused, palp with 5 segments..............Subfamily Limnocharinae Grube, 1859 6 ��� Palp segments fused, palp with 4 segments.... Subfamily Neolimnocharinae Gerecke et al., 2020 * 6. P-V inserted on the medioventral portion of P-IV.................... Genus Laterolimnochares Jin, 1999 ��� P-V normally inserted on the distal end of P-IV....................Genus Limnochares Latreille, 1796 7 7. Legs with swimming setae.........................................................Subgenus Cyclothrix Wolcott, 1905 ��� Legs without swimming setae..............................................Subgenus Limnochares Latreille, 1796 * The definition of Neolimnocharinae is mainly based on larval characters. This larval-based taxonomy results in a parallel system in Limnocharidae, for which taxa have previously been based on adults. On the other hand, Gerecke et al. (2020) provided sufficient conditions to make us think that the establishment of subfamily Neolimnocharinae is reasonable. To avoid confusion in the taxonomy, four larval-based genera (Veliacola, Archaeveliacola, Armaveliacola, Isoveliacola) and genus Neolimnochares are not listed in this adult-charactered binomial key. The key to the subfamilies, genera and subgenera of Limnocharidae 1. Gnathosoma attached to a long protrusible tube of soft integument, the former well separated from the first coxae; palp segments 3, occasionally 2, 4 or 5; legs without swimming seta............................................................................................ Subfamily Rhyncholimnocharinae Lundblad, 1936 2 ��� Gnathosoma not attached to a long protrusible tube of soft integument; gnathosoma always adjacent to the first pair of coxae; palp segments 4 or 5; swimming setae absent or present......................... 5 2. Palp segments not fused, with 5 segments; P-V attached to the ventral surface, rather than the distal end of P-IV; dorsalia absent.................................................Genus Pentachares Li & Guo gen. nov. ��� Palp segments fused, palp with 3, occasionally 2, 4 segments......................................................... 3 3. Palp with 4 segments or occasionally 3; medial part of palp curved dorsally; without dorsalia.................................................................................................... Genus Austrolimnochares Harvey, 1998 ��� Palp with 3 segments or occasionally 2; dorsal margin of the second palp segment straight; dorsum with or without paired sclerites...............................Genus Rhyncholimnochares Lundblad, 1936 4 4. Terminal segment of palp relatively large, with much of the segment visible proximal to the terminal setae.............................................................................. Subgenus Paralimnochares Lundblad, 1937 ��� Terminal segment of palp greatly reduced, the terminal setae are prominent but the actual segment somewhat hidden.................................................. Subgenus Rhyncholimnochares Lundblad, 1936 5. Palp segments not fused, palp with 5 segments..............Subfamily Limnocharinae Grube, 1859 6 ��� Palp segments fused, palp with 4 segments.... Subfamily Neolimnocharinae Gerecke et al., 2020 * 6. P-V inserted on the medioventral portion of P-IV.................... Genus Laterolimnochares Jin, 1999 ��� P-V normally inserted on the distal end of P-IV....................Genus Limnochares Latreille, 1796 7 7. Legs with swimming setae.........................................................Subgenus Cyclothrix Wolcott, 1905 ��� Legs without swimming setae..............................................Subgenus Limnochares Latreille, 1796 * The definition of Neolimnocharinae is mainly based on larval characters. This larval-based taxonomy results in a parallel system in Limnocharidae, for which taxa have previously been based on adults. On the other hand, Gerecke et al. (2020) provided sufficient conditions to make us think that the establishment of subfamily Neolimnocharinae is reasonable. To avoid confusion in the taxonomy, four larval-based genera (Veliacola, Archaeveliacola, Armaveliacola, Isoveliacola) and genus Neolimnochares are not listed in this adult-charactered binomial key., Published as part of Jin, Dao-Chao & Guo, Jian-Jun, 2022, Contributions to the knowledge of Eylaoidea (Acari: Hydrachnidiae) from China, pp. 53-70 in European Journal of Taxonomy 787 (1) on pages 61-67, DOI: 10.5852/ejt.2021.787.1613, http://zenodo.org/record/5817957, {"references":["Jin D. C. 1999. Laterolimnochares huangshanensis gen. nov. et sp. nov. of Limnocharidae from Huangshan, Anhui (Acari: Eylaoidea). Acta entomologica Sinica 42 (3): 311 - 314.","Smit H. & Pesic V. 2014. Water mites from Mount Kinabalu and the Crocker Range, Borneo, Malaysia (Acari: Hydrachnidia), with the description of 34 new species. Zootaxa 3876 (1): 1 - 71. https: // doi. org / 10.11646 / zootaxa. 3876.1.1","Lundblad O. 1936. Dritte Mitteilung uber neue Wassermilben aus Santa Catharina in Sudbrasilien. Zoologischer Anzeiger 116 (7 - 8): 200 - 211.","Harvey M. S. 1998. Unusual new water mites (Acari: Hydracarina) from Australia, Part 1. Records of the Western Australian Museum 19: 91 - 106.","Gerecke R., Wohltmann A., Smith B. P. & Judson M. 2020. New taxa of the water mite family Limnocharidae (Actinotrichida: Eylaoidea) parasitising tropical water bugs of the genus Rhagovelia Mayr, 1865 (Hemiptera: Veliidae) reveal unsuspected diversity of larval morphologies. Aquatic Insects 41 (4): 273 - 323. https: // doi. org / 10.1080 / 01650424.2020.1811876","Latreille P. - A. 1796. Precis des Caracteres Generiques des Insectes, Disposes dans un Ordre Naturel. Prevot, Paris. https: // doi. org / 10.5962 / bhl. title. 58411"]}

Genus Eylais Latreille, 1796 Eylais Latreille, 1796: 182., Published as part of Jin, Dao-Chao & Guo, Jian-Jun, 2022, Contributions to the knowledge of Eylaoidea (Acari: Hydrachnidiae) from China, pp. 53-70 in European Journal of Taxonomy 787 (1) on page 55, DOI: 10.5852/ejt.2021.787.1613, http://zenodo.org/record/5817957, {"references":["Latreille P. - A. 1796. Precis des Caracteres Generiques des Insectes, Disposes dans un Ordre Naturel. Prevot, Paris. https: // doi. org / 10.5962 / bhl. title. 58411"]}

Ljania guangxiensis sp. nov. (Fig. 3) Type material. Holotype female, Dayaoshan National Nature Reserve, Guangxi Province, P. R. China (23��97���33������N, 110��13���17������E, 915 m a.s.l.), water depth 10���15 cm, with many small stones and sands on the bottom, collected by Min Ao, Cai-Yun Li & Hai-Tao Li, 5-IX-2019. Paratype: 0/1/0 (mounted), same data as holotype. Slides No. GX- AT-20190510 (holotype)���GX-AT-20190511 (paratype)., Published as part of Ao, Min, Yi, Tian-Ci & Guo, Jian-Jun, 2021, The first record of the water mite genus Ljania Thor, 1898 (Acari, Hydrachnidiae Aturidae) from China, with description of two new species, pp. 391-398 in Zootaxa 4970 (2) on page 395, DOI: 10.11646/zootaxa.4970.2.11, http://zenodo.org/record/4761707

Ljania jini sp. nov. (Figs 1–2) Type material. Holotype male, Dayaoshan National Nature Reserve, Guangxi Province, P. R. China (23°58′48′′N, 110°7′6′′E, 950 m a.s.l.), water depth 10–20 cm, with many small stones and sand on the bottom, collected by Min Ao & Hai-Tao Li, 5-IX-2019. Paratype: 0/1/0 (mounted), same data as holotype. Slides No. GX-AT-20190907 (holotype)—GX-AT-20190908 (paratype).

Genus Ljania Thor, 1898 Diagnosis. After Smit & Pe��ić (2014): Idiosoma with complete dorsal and ventral shield; dorsal furrow with one pair of lateroglandularia in shallow lateral indentations of the dorsal shield; three pairs of genital acetabula, Ac plates fused with the ventral shield in males but separate in females (Figs. 1B, 2B, 3B); a prominent ridge present on each side extending anterolaterally from insertions of IV-L; Posterolateral suture lines of Cx-IV maybe complete or completely absent; palp without projections or heavy ventral setae; Legs without sexual dimorphism, I-L obviously longer than II-L., Published as part of Ao, Min, Yi, Tian-Ci & Guo, Jian-Jun, 2021, The first record of the water mite genus Ljania Thor, 1898 (Acari, Hydrachnidiae Aturidae) from China, with description of two new species, pp. 391-398 in Zootaxa 4970 (2) on page 392, DOI: 10.11646/zootaxa.4970.2.11, http://zenodo.org/record/4761707, {"references":["Smit, H. & Pesic, V. (2014) Water mites from Mount Kinabalu and the Crocker Range, Borneo, Malaysia (Acari: Hydrachnidia), with the description of 34 new species. Zootaxa, 3876 (1), 1 - 71. https: // doi. org / 10.11646 / zootaxa. 3876.1.1"]}

Ljania jini sp. nov. (Figs 1���2) Type material. Holotype male, Dayaoshan National Nature Reserve, Guangxi Province, P. R. China (23��58���48������N, 110��7���6������E, 950 m a.s.l.), water depth 10���20 cm, with many small stones and sand on the bottom, collected by Min Ao & Hai-Tao Li, 5-IX-2019. Paratype: 0/1/0 (mounted), same data as holotype. Slides No. GX-AT-20190907 (holotype)���GX-AT-20190908 (paratype)., Published as part of Ao, Min, Yi, Tian-Ci & Guo, Jian-Jun, 2021, The first record of the water mite genus Ljania Thor, 1898 (Acari, Hydrachnidiae Aturidae) from China, with description of two new species, pp. 391-398 in Zootaxa 4970 (2) on page 392, DOI: 10.11646/zootaxa.4970.2.11, http://zenodo.org/record/4761707

Ljania guangxiensis sp. nov. (Fig. 3) Type material. Holotype female, Dayaoshan National Nature Reserve, Guangxi Province, P. R. China (23°97′33′′N, 110°13′17′′E, 915 m a.s.l.), water depth 10–15 cm, with many small stones and sands on the bottom, collected by Min Ao, Cai-Yun Li & Hai-Tao Li, 5-IX-2019. Paratype: 0/1/0 (mounted), same data as holotype. Slides No. GX- AT-20190510 (holotype)—GX-AT-20190511 (paratype).

Bdella longicornis (Linnaeus, 1758) Description, Published as part of Wu, You-Fang, Jin, Dao-Chao, Yi, Tian-Ci, Chen, Jian-Xin & Guo, Jian-Jun, 2020, First description of immature stages and redescription of female Bdella longicornis (Acari: Prostigmata: Bdellidae), with an ontogeny of chaetotaxy, pp. 102-124 in Zootaxa 4900 (1) on page 103, DOI: 10.11646/zootaxa.4900.1.8, http://zenodo.org/record/4409031, {"references":["Linnaeus, C. (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. 10 th Edition. Impensis Direct. Laurentii Salvii, Holmiae (Salvius), (4) + 824 pp. https: // doi. org / 10.5962 / bhl. title. 542"]}

Final report for the Geoscience Data Enhanced Virtual Laboratory extension project, October 2020.

A new species, namely Parabonzia xinningensis Chen and Jin sp. nov., is described from China, based on female, male, tritonymph, deutonymph and protonymph. A key to adult females of Parabonzia species of the world is provided., Acarologia, 60, 806-824

Genus Cornigamasus Evans & Till, 1979 Type species: Gamasus coleoptratorum var. lunaris Berlese, 1882 Diagnosis. Female and deutonymph with separated podonotal and opisthonotal shields, male with holodorsal shield, a transverse suture in central region. Setae z5 of dorsal hexagon markedly different in form from j5 and j6, usually thick, long and pilose distally. Tritosternum of female and deutonymph normal, but absent or biramous in male, if biramous, base reduced. Metasternal shields in female separated from sternal shield by an oblique suture. Genital shield of female triangular. Opisthogaster with rarely more than 15 pairs of setae. Seta al of palp femur setose, spiculate or rod-shaped, setae al1 and al2 of palp genu spatulate distally. Corniculi long and parallel, extending beyond anterior margin of palp trochanter, grooved to accommodate ���salivary��� styli. Legs without spurs except for leg II of male. Notes. The diagnosis of Cornigamasus is based on the definition by Hyatt (1980). The most important difference is that the tritosternum of the male, which is absent in known species (Hyatt 1980; Ma 1986; Skorupski & Witaliński 1997), is biramous with a degenerated base in C. allotritosternus sp. nov.. Therefore, the genus diagnosis is modified slightly to accommodate C. allotritosternus sp. nov.., Published as part of Yao, Mao-Yuan, Guo, Jian-Jun, Yi, Tian-Ci & Jin, Dao-Chao, 2020, Description of Cornigamasus allotritosternus sp. nov. (Mesostigmata: Parasitidae) from China, with an emphasis on the ontogenetic development of setae, pp. 462-486 in Zootaxa 4821 (3) on page 463, DOI: 10.11646/zootaxa.4821.3.3, http://zenodo.org/record/4400976, {"references":["Evans, G. O. & Till, W. M. (1979) Mesostigmatic mites of Britain and Ireland (Chelicerata: Acari: Parasitiformes). An introduction to their external morphology and classification. Transactions of the Zoological Society of London, 35, 139 - 270. https: // doi. org / 10.1111 / j. 1096 - 3642.1979. tb 00059. x","Berlese, A. (1882) Poymorphisme et parthenogenese de quelques acariens (Gamasides). Archives Italennies de Biologie, 2, 108 - 130.","Hyatt, K. H. (1980) Mites of the subfamily Parasitinae (Mesostigmata: Parasitidae) in the British Isles. Bulletin of the British Museum (Natural History), 38 (5), 237 - 378.","Ma, L. M. (1986) New species of subfamily Parasitinae from north Qing-Zang Plateau, China. 1. Genera Parasitus and Cornigamasus (Acarina: Parasitidae). Acta Zootaxonomica Sinica, 11, 379 - 388. [in Chinese]","Skorupski, M. & Witalinski, W. (1997) Cornigamasus ocliferius sp. n., a new gamasid mite from Poland (Acari: Parasitidae). Genus, 8, 145 - 152."]}

Cornigamasus allotritosternus sp. nov. (Figures 1–64) Material examined. Holotype, female (slide no. 201703041701), found in cow dung, Qingyan Town (height 1103 m a.s.l., E 106°40′41.79″, N 26°20′23.18″), Guizhou Province, China, on 3 April, 2017, coll. Mao-Yuan Yao and Yan Shen. Paratypes, 13 females (slide no. 201703041702–201703041715), ten males (201703041716–201703041725), 25 deutonymphs (201703041726–201703041750), 12 protonymphs (201703041751–2017030417562), four larvae (201703041763–201703041766), one molting larva (2017030417a), one molting protonymph (2017030417b) and two molting deutonymphs (2017030417c), the data same as the holotype. All specimens are deposited in Institute of Entomology, Guizhou University, Guiyang, P. R. China (GUGC). Description Larva (Figures 1–11) Dorsum (Figure 1). Idiosoma very weakly sclerotized, length 335–378, width 285–342. Without discernible shields and ornamentation. Podonotal region bearing ten pairs of simple setae, smooth (j1, j3, j5, j6, z2, z4 and s6) or weakly pilose distally (j4, z5 and s4), and three pairs of poroids (idj4, gdj4, idj6) visible. Seta z5 much longer than other setae and two times longer than setae j5 and j6. Opisthonotal region bearing eight pairs of simple, smooth setae (J2, J3, Z3, J4, S3 and S4) or weakly pilose distally (J4 and Z4), and two pairs of poroids (idZ3, gdS3) visible. Lengths of dorsal setae: j1 24–27, j3 24–26, j4 29–32, j5 23–25, j6 23–25, z2 24–26, z4 26–29, z5 51–54, s4 40 –43, s6 24 –27, J2 28–30, J3 29–33, J4 28–31, J5 29–32, Z3 25–28, Z4 27–39, S3 26 –30, S4 27 –30. Venter (Figure 2). Without discernible shields. Tritosternum with a stalk-like base (length 39–45), two laciniae (length 48–60) and two subapical barbs (Figure 3). Sternal area bearing three pairs of setae (st1, st2 and st3). Opisthogastric region with four pairs of setae (JV1, JV2, JV5 and ZV2), of which setae JV2 obviously longer than others, and two pairs of poroids (ivo4, ivp) visible. All setae set on opisthogastric membrane around anal opening. Setae pa and po present, po very long. Anal valves with a pair of minute euanal setae. Lengths of setae: st1 24–26, st2 25–27, st3 27–30, JV1 22–24, JV2 39–42, JV5 22–24, ZV2 17–20, pa 52–58, po 172–189. Gnathosoma. Gnathotectum (Figure 4) with three prongs, medial prong slightly shorter than lateral prongs, emerging from nude base, tips of prongs with some intraspecific variation. Fixed and movable digits of chelicera subequal in length (34–38), fixed digit with four teeth, an acicular pilus dentilis and club-shaped dorsal seta; movable digit with three teeth, base of movable digit with arthrodial brush (Figure 5). Palpus length 115–142, form as in Figure 6; trochanter devoid of setae; femur with a club-shaped (al) and three simple setae (d1, d2 and pl); genu bearing a distally spatulate (al1) and four simple setae (d1, d2, d3 and pl). Tibia with 12 simple setae. Tarsus with 11 setae and 3-tined apotele. Subcapitulum (Figure 7) length 98–116, with two pairs of simple setae (h1 length 40–42, h2 length 41–43) and 10–12 rows of denticles medially; corniculus (length 18–23), horn-shaped, reaching midpoint of palp trochanter. Salivary stylus distinct and located lateral to base of seta h2. Fringed internal malae distinct. Legs. Leg Ⅰ (Figures 8, 9) length 372–398, slenderer than legs II and III. Tarsus Ⅰ with five discernible solenidia, clavate and shorter than tactile setae. Leg II 365–382 (Figure 10), leg III 369–384 (Figure 11). Most tactile setae of legs simple, a few with pilose ends. Setal formulae and number of legs Ⅰ –III shown in Table 1. Protonymph (Figures 12–23) Dorsum (Figure 12). Idiosoma weakly sclerotized, length 561–584, width 385–413. Podonotal and opisthonotal regions medially with a weak transverse suture not reaching lateral margins. Podonotal region with 15 pairs of setae, of which 11 pairs smooth and nearly equal in length, four pairs (j1, j4, z5 and r3) with finely pilose ends and relatively long, and five pairs of poroids visible. Setae z5 two times as long as setae j5 and j6. Opisthonotal region bearing 13 pairs of setae, which of setae J5 and Z3 with finely pilose ends, and 11 pairs of poroids visible. Lengths of dorsal setae: j1 32–36, j2 23–26, j3 28–32, j4 38–42, j5 25–29, j6 27–31, z2 24–26, z4 26–28, z5 45–48, s4 30 –34, s5 30 –32, s6 21 –24, r2 28–31, r3 45–47, r5 22–25, J1 28–31, J2 23–25, J3 24–26, J4 25–27, J5 48–51, Z1 34–36, Z2 24–26, Z3 37–40, Z4 23–25, S2 25 –27, S3 23 –26, S4 22 –26, R1 25–27. Venter (Figure 13). Tritosternum (Figure 14) with slightly pilose laciniae laterally, length 105–121, base of tritosternum length 58–71. Sternal area bearing four pairs of setae (st1–st3 and st5) and two pairs of poroids. Opisthogastric region with five pairs of setae on soft cuticle (JV1, JV2, JV5, ZV1 and ZV2) and four pairs of poroids visible. Anal shield triangular and weakly sclerotized. Setae pa shorter than po. All ventral setae simple. Peritreme (49–58) short and located posterior level of coxa III. Lengths of setae: st1 24–26, st2 22–25, st3 22–24, st5 13–15, JV1 24–26, JV2 29–31, JV5 23–25, ZV1 11–13, ZV2 25–27, pa 18–21, po 32–34. Gnathosoma. Gnathotectum (Figure 15) trispinate, median triangle prong slightly wider and distally more pointed than lateral prongs. Lateral margins of tectum nude. Chelicera (Figure 16) as in larva, fixed and movable digits subequal in length (86–90). Palpus (Figure 17), length 175–192, with one seta (v1) on trochanter. Setation of femur, genu and tibia as in the larva. Tarsus with 15 setae and 3-tined apotele. Subcapitulum (Figure 18), length 156–165, with four pairs of setae (h1, h2, h3 and pcx) and 10–12 rows of denticles. Lengths of setae: h1 50–52, h2 29–31, h3 61–64, pcx 33–35. Corniculus length 48–55, reaching anterior margin of palp trochanter. Legs. Leg Ⅰ (Figures 19, 20) 562–584, slenderer than legs II –IV. Tarsus Ⅰ with six discernible solenidia. Lengths of other legs: leg II 399–408 (Figure 21), leg III 389–402 (Figure 22) and leg IV 502–519 (Figure 23). Most tactile setae of legs simple, a few with pilose ends, seta al2 very long on tarsus IV. Setal formulae and number of legs Ⅰ –IV shown in Table 1. Deutonymph (Figures 24–36) Note: L: Larva; PN: Protonymph; DN: Deutonymph; F: Female; M: Male; Bold numbers show additional setae added in ontogenetic development. Dorsum (Figure 24). Idiosoma well-sclerotized, length 741–874, width 507–618. Podonotal and opisthonotal shields with distinct reticulations and usually yellowish-brown alive. Posterior margin of podonotal shield convex, fitted closely with concave anterior margin of opisthonotal shield. Podonotal shield, length 440–563, width 411–436, distinctly broader than opisthonotal shield, length 199–214, width 319–342. Podonotal shield with 18 pairs of setae, of which four pairs (j1, j4, z5, r3) relatively stout with pilose ends, and nine pairs of poroids visible. Opisthonotal shield with 11 pairs of poroids visually and 12 pairs of setae, of which three pairs (Z3 and J5) relatively longer, stout and with pilose ends. The membranous cuticle bearing and three pairs of poroids and 17 pairs of setae (s2, r2, r4, r6, r6, J6, Z5–Z6, S4–S6, R1–R6), which of setae Z6 long, stout and pilose distally, the remainder setae simple. Lengths of setae on the shields: j1 35–39, j2 27–29, j3 29–34, j4 38–42, j5 27–29, j6 27–30, z1 23–26, z2 23–25, z3 24–26, z4 27–29, z5 40–42, z6 26–28, s2 24 –26, s3 11 –14, s4 28 –30, s5 28 –30, r3 41–45, r5 29–31, J1 28–30, J2 24–26, J3 24–25, J4 24–26, J5 39–42, Z1 38–42, Z2 28–29, Z3 39–42, Z4 23–25, S1 24 –26, S2 26 –28, S3 25 –29. Venter (Figure 25). Tritosternum with long laciniae (Figure 26), length 105–142, base length 62–79, flanked by two pairs of presternal platelets. Sternal shield bearing four pairs of setae (st1–st4) and three pairs of poroids, length 258–292, width 159–182, strongly sclerotized and reticulated, lateral cells longer than middle cells. Sternal seta st5 off sternal shield, at level of coxae IV. Opisthogastric region with 10 pairs of setae and six pairs of poroids visible. Gland pores gv2 well-developed and with three openings. One pair of metapodal shields present at level of setae JV1 and ZV1. Anal shield reticulated and elliptical. Setae pa and po subequal in length. All ventral setae simple. Stigma at level of coxae IV or between coxae III–IV, peritreme extending to level of coxae I. Lengths of setae: st1 33–36, st2 28–30, st3 28–30, st4 24–27, st5 24–26, JV1 28–30, JV2 34–36, JV3 34–36, JV5 46–49, ZV1 18–20, ZV2 33–34, ZV3 30–32, ZV4 24–26, UR5 20–21, pa 26–28, po 28–31. Gnathosoma. Gnathotectum (Figure 27). Distal end of medial prong intraspecifically variable: round, forked or truncate, 54–65 in length, emerging from denticulate base. Fixed digit of chelicera (Figure 28), length 125–135, with four teeth, pilus dentilis and dorsal seta; movable digit 128–141, with three teeth. Palpus (Figure 29) length 239–266, trochanter bearing setae v1 and v2, seta v2 pilose distally and set on tubercle; femur with five pairs of setae, seta al rod-shaped, lateral end of femur with a small tubercle; genu with six pairs of setae, setae al1 and al2 spatulate distally; tibia with 14 pairs of setae; tarsus with 15 setae and 3-tined apotele. Subcapitulum (Figure 30), length 216–242, width 192–225, with four pairs of setae (lengths of setae: h1 68–72, h2 38–45, h3 96–112, pcx 46–53). Corniculus (82–96), long, slender and reaching midpoint of palp femur; salivary styli run from outside bases of corniculus, beginning lateral and below base of seta h1; corniculus grooved to accommodate salivary styli. Deutosternal groove with 10–12 rows of denticles. Legs. Leg Ⅰ (Figures 31, 32) 626–770 in length. Tarsus Ⅰ with seven discernible solenidia. Length of leg II 589–623 (Figure 33), leg III 551–599 (Figure 34) and leg IV 714–782 (Figures 35, 36). Coxa III with a small tubercle bearing seta pv. Most tactile setae simple, a few with pilose ends, setae al2 very long on tarsus IV. Setal formulae and number of leg setae shown in Table 1. Female (Figures 37–50) Dorsum (Figure 37). Idiosoma length 984–1238, width 706–791. Podonotal and opisthonotal shields strongly reticulated. Podonotal shield, length 498–556, width 542–593, bearing nine pairs of poroids visually and 21 pairs of short, fine setae, excepting j1, j4, z5 and r3 brush-like. Seta r4 off shield. Posterior margin of podonotal shield and anterior margin of opisthonotal shield closely aligned, each with undulating margins. Opisthonotal shield length 439–472, width 499–564, with 13 pairs of poroids visually and 12 pairs of setae, of which three brush-like (Z1, Z3 and J5). Membranous cuticle bearing one pairs of poroids visibly and 14 pairs of setae (r4, r6, J6, Z5–Z6, S4–S6, R1–R6), which of only seta Z6 pilose distally. Lengths of dorsal setae on shields: j1 57–60, j2 23–25, j3 29–31, j4 64–68, j5 20–25, j6 20–23, z1 22–24, z2 20–23, z3 18–23, z4 22–24, z5 68–71, z6 20–22, s1 20 –23, s2 19 –23, s3 19 –23, s4 22 –25, s5 19 –24, s6 19 –23, r2 19–24, r3 96–101, r4 20–24, r5 26–30, J1 24–27, J2 25–29, J3 24–28, J4 26–30, J5 90–95, Z1 83–86, Z2 28–33, Z3 88–92, Z4 25–29, S1 21 –24, S2 27 –32, S3 25 –29. Venter (Figure 38). Tritosternum with pilose laciniae, length 131–148. Base of tritosternum, length 64–72, flanked by two or three pairs of presternal shields close to each other, of which one near to median evidently larger than other two and anterolateral shield sometimes fragmented. Sternal shield (126–137 long, 193–209 wide) reticulated, with three pairs of setae (st1–3), of which st2 slightly thicker and shorter than st1 and st3, and two pairs of poroids (iv1–iv2). Anterior margin of sternal shield slightly concave, posterior margin deeply notched. Metasternal shield clearly detached from sternal shield, bearing st4 and poroids iv3. Genital shield (265–289 long, 272–285 wide) bearing a pair of simple epigynal setae (st5), the anterior half narrow and pointed at end and the posterior separated from the opisthogastric shield. Genital shield fused with region of opisthogastric shield at gv2 glands. Endogynium (Figures 39, 40) length 183–218, width 130–154, with lateral lines forming a curtain-shaped decoration on inside of each side, base conchoidal, nearly equal to distance between bases of setae st5 (in ventral view). Opisthogastric shield gradually narrowed, fused posteriorly with small perianal plate and bearing three pairs of poroids visually and seven pairs of setae, of which JV2, JV3, JV4, ZV2 and ZV3 with slight pilose ends. Anal region with gland pores gv3 and setae pa and po. Seta JV5 brush-like, on soft cuticle. Peritreme length 472–487, extending anteriorly to level of coxa I. Lengths of ventral setae: st1 55–58, st2 46–51, st3 57–61, st4 56–59, st5 62–65, JV1 49–53, JV2 57–61, JV3 63–66, JV4 77–62, JV5 86–92, ZV1 33–36, ZV2 53–56, ZV3 43–47, ZV4 33–36, UR5 33–35, UR6 32–34, po 28–32, pa 17–19. Gnathosoma. Gnathotectum as in figure 41, central prong smooth, length 69–73. Fixed digit of chelicera (Figure 42), length 128–138, with four teeth and a pilus dentilis, movable digit length 139–153, with three teeth. Palpus (Figure 43) as in deutonymph, length 245–289, distolateral palp femur with hook-like projection. Subcapitulum (Figure 44) as in deutonymph, length 257–273, width 220–235; deutosternal groove with 10–12 visible rows of fine denticles. Lengths of setae: h1 73–80, h2 95–103, h3 28–32, pcx 43–47. Corniculus length 106–118. Legs. Leg Ⅰ 884–956 (Figures 45, 46), tarsus Ⅰ with seven discernible solenidia. Length of leg II 716–771 (Figure 47), leg III 638–709 (Figure 48), leg IV 907–963 (Figures 49, 50). Coxa III with a small tubercle bearing seta pv. Femur IV with a long seta av1. Most leg tactile setae simple and a few with pilose ends. Setal formulae and number of legs setae shown in Table 1. Male (Figures 51–64) Dorsum (Figure 51). Idiosoma length 949–982, width 665–698. Dorsal shield covering nearly entire dorsum, although a complete transverse suture present between podonotal and opisthonotal shields. Podonotal region with seven pairs of poroids visually and 22 pairs of setae, of which j1, j4, z5, r3 brush-like. Opisthonotal region with seven pairs of poroids visually and 23–25 pairs of setae, of which four brush-like (Z1, Z3, J5 and Z6). Venter (Figure 52). Tritosternum bearing pilose laciniae (62–76), the base of tritosternum reduced and covered by genital lamina (Figure 53). Genital lamina length 97–104, width 48–56, flanked by two pairs of presternal shields, posterior shield subtriangular and obviously larger than anterior shield, which is sometimes fragmented into two shields. Sternogenital shield (length 246–281), with five pairs of setae (st1–5) and three pairs of poroids, separated from opisthogastric region by a narrow transverse suture and coalescing in region of gv2 glands. Opisthogastric region with 13 pairs of setae, of which six pairs (JV2, JV3, JV4, JV5, ZV2 and ZV3) stout and with pilose ends. Peritreme length 411–482. Gnathosoma. Central prong of gnathotectum smooth, length 69–76 (Figure 54). Fixed digit of chelicera with three teeth, movable with one tooth, spermatotreme distally fused with movable digit (Figure 55). Palpus as in the female, length 246–283 (Figure 56). Corniculus length 102–113. Palp chaetotaxy, corniculus and venter of gnathosoma (Figure 57) similar to female.

Cornigamasus allotritosternus sp. nov. (Figures 1���64) Material examined. Holotype, female (slide no. 201703041701), found in cow dung, Qingyan Town (height 1103 m a.s.l., E 106��40���41.79���, N 26��20���23.18���), Guizhou Province, China, on 3 April, 2017, coll. Mao-Yuan Yao and Yan Shen. Paratypes, 13 females (slide no. 201703041702���201703041715), ten males (201703041716���201703041725), 25 deutonymphs (201703041726���201703041750), 12 protonymphs (201703041751���2017030417562), four larvae (201703041763���201703041766), one molting larva (2017030417a), one molting protonymph (2017030417b) and two molting deutonymphs (2017030417c), the data same as the holotype. All specimens are deposited in Institute of Entomology, Guizhou University, Guiyang, P. R. China (GUGC). Description Larva (Figures 1���11) Dorsum (Figure 1). Idiosoma very weakly sclerotized, length 335���378, width 285���342. Without discernible shields and ornamentation. Podonotal region bearing ten pairs of simple setae, smooth (j1, j3, j5, j6, z2, z4 and s6) or weakly pilose distally (j4, z5 and s4), and three pairs of poroids (idj4, gdj4, idj6) visible. Seta z5 much longer than other setae and two times longer than setae j5 and j6. Opisthonotal region bearing eight pairs of simple, smooth setae (J2, J3, Z3, J4, S3 and S4) or weakly pilose distally (J4 and Z4), and two pairs of poroids (idZ3, gdS3) visible. Lengths of dorsal setae: j1 24���27, j3 24���26, j4 29���32, j5 23���25, j6 23���25, z2 24���26, z4 26���29, z5 51���54, s4 40 ���43, s6 24 ���27, J2 28���30, J3 29���33, J4 28���31, J5 29���32, Z3 25���28, Z4 27���39, S3 26 ���30, S4 27 ���30. Venter (Figure 2). Without discernible shields. Tritosternum with a stalk-like base (length 39���45), two laciniae (length 48���60) and two subapical barbs (Figure 3). Sternal area bearing three pairs of setae (st1, st2 and st3). Opisthogastric region with four pairs of setae (JV1, JV2, JV5 and ZV2), of which setae JV2 obviously longer than others, and two pairs of poroids (ivo4, ivp) visible. All setae set on opisthogastric membrane around anal opening. Setae pa and po present, po very long. Anal valves with a pair of minute euanal setae. Lengths of setae: st1 24���26, st2 25���27, st3 27���30, JV1 22���24, JV2 39���42, JV5 22���24, ZV2 17���20, pa 52���58, po 172���189. Gnathosoma. Gnathotectum (Figure 4) with three prongs, medial prong slightly shorter than lateral prongs, emerging from nude base, tips of prongs with some intraspecific variation. Fixed and movable digits of chelicera subequal in length (34���38), fixed digit with four teeth, an acicular pilus dentilis and club-shaped dorsal seta; movable digit with three teeth, base of movable digit with arthrodial brush (Figure 5). Palpus length 115���142, form as in Figure 6; trochanter devoid of setae; femur with a club-shaped (al) and three simple setae (d1, d2 and pl); genu bearing a distally spatulate (al1) and four simple setae (d1, d2, d3 and pl). Tibia with 12 simple setae. Tarsus with 11 setae and 3-tined apotele. Subcapitulum (Figure 7) length 98���116, with two pairs of simple setae (h1 length 40���42, h2 length 41���43) and 10���12 rows of denticles medially; corniculus (length 18���23), horn-shaped, reaching midpoint of palp trochanter. Salivary stylus distinct and located lateral to base of seta h2. Fringed internal malae distinct. Legs. Leg ��� (Figures 8, 9) length 372���398, slenderer than legs II and III. Tarsus ��� with five discernible solenidia, clavate and shorter than tactile setae. Leg II 365���382 (Figure 10), leg III 369���384 (Figure 11). Most tactile setae of legs simple, a few with pilose ends. Setal formulae and number of legs ��� ���III shown in Table 1. Protonymph (Figures 12���23) Dorsum (Figure 12). Idiosoma weakly sclerotized, length 561���584, width 385���413. Podonotal and opisthonotal regions medially with a weak transverse suture not reaching lateral margins. Podonotal region with 15 pairs of setae, of which 11 pairs smooth and nearly equal in length, four pairs (j1, j4, z5 and r3) with finely pilose ends and relatively long, and five pairs of poroids visible. Setae z5 two times as long as setae j5 and j6. Opisthonotal region bearing 13 pairs of setae, which of setae J5 and Z3 with finely pilose ends, and 11 pairs of poroids visible. Lengths of dorsal setae: j1 32���36, j2 23���26, j3 28���32, j4 38���42, j5 25���29, j6 27���31, z2 24���26, z4 26���28, z5 45���48, s4 30 ���34, s5 30 ���32, s6 21 ���24, r2 28���31, r3 45���47, r5 22���25, J1 28���31, J2 23���25, J3 24���26, J4 25���27, J5 48���51, Z1 34���36, Z2 24���26, Z3 37���40, Z4 23���25, S2 25 ���27, S3 23 ���26, S4 22 ���26, R1 25���27. Venter (Figure 13). Tritosternum (Figure 14) with slightly pilose laciniae laterally, length 105���121, base of tritosternum length 58���71. Sternal area bearing four pairs of setae (st1���st3 and st5) and two pairs of poroids. Opisthogastric region with five pairs of setae on soft cuticle (JV1, JV2, JV5, ZV1 and ZV2) and four pairs of poroids visible. Anal shield triangular and weakly sclerotized. Setae pa shorter than po. All ventral setae simple. Peritreme (49���58) short and located posterior level of coxa III. Lengths of setae: st1 24���26, st2 22���25, st3 22���24, st5 13���15, JV1 24���26, JV2 29���31, JV5 23���25, ZV1 11���13, ZV2 25���27, pa 18���21, po 32���34. Gnathosoma. Gnathotectum (Figure 15) trispinate, median triangle prong slightly wider and distally more pointed than lateral prongs. Lateral margins of tectum nude. Chelicera (Figure 16) as in larva, fixed and movable digits subequal in length (86���90). Palpus (Figure 17), length 175���192, with one seta (v1) on trochanter. Setation of femur, genu and tibia as in the larva. Tarsus with 15 setae and 3-tined apotele. Subcapitulum (Figure 18), length 156���165, with four pairs of setae (h1, h2, h3 and pcx) and 10���12 rows of denticles. Lengths of setae: h1 50���52, h2 29���31, h3 61���64, pcx 33���35. Corniculus length 48���55, reaching anterior margin of palp trochanter. Legs. Leg ��� (Figures 19, 20) 562���584, slenderer than legs II ���IV. Tarsus ��� with six discernible solenidia. Lengths of other legs: leg II 399���408 (Figure 21), leg III 389���402 (Figure 22) and leg IV 502���519 (Figure 23). Most tactile setae of legs simple, a few with pilose ends, seta al2 very long on tarsus IV. Setal formulae and number of legs ��� ���IV shown in Table 1. Deutonymph (Figures 24���36) Note: L: Larva; PN: Protonymph; DN: Deutonymph; F: Female; M: Male; Bold numbers show additional setae added in ontogenetic development. Dorsum (Figure 24). Idiosoma well-sclerotized, length 741���874, width 507���618. Podonotal and opisthonotal shields with distinct reticulations and usually yellowish-brown alive. Posterior margin of podonotal shield convex, fitted closely with concave anterior margin of opisthonotal shield. Podonotal shield, length 440���563, width 411���436, distinctly broader than opisthonotal shield, length 199���214, width 319���342. Podonotal shield with 18 pairs of setae, of which four pairs (j1, j4, z5, r3) relatively stout with pilose ends, and nine pairs of poroids visible. Opisthonotal shield with 11 pairs of poroids visually and 12 pairs of setae, of which three pairs (Z3 and J5) relatively longer, stout and with pilose ends. The membranous cuticle bearing and three pairs of poroids and 17 pairs of setae (s2, r2, r4, r6, r6, J6, Z5���Z6, S4���S6, R1���R6), which of setae Z6 long, stout and pilose distally, the remainder setae simple. Lengths of setae on the shields: j1 35���39, j2 27���29, j3 29���34, j4 38���42, j5 27���29, j6 27���30, z1 23���26, z2 23���25, z3 24���26, z4 27���29, z5 40���42, z6 26���28, s2 24 ���26, s3 11 ���14, s4 28 ���30, s5 28 ���30, r3 41���45, r5 29���31, J1 28���30, J2 24���26, J3 24���25, J4 24���26, J5 39���42, Z1 38���42, Z2 28���29, Z3 39���42, Z4 23���25, S1 24 ���26, S2 26 ���28, S3 25 ���29. Venter (Figure 25). Tritosternum with long laciniae (Figure 26), length 105���142, base length 62���79, flanked by two pairs of presternal platelets. Sternal shield bearing four pairs of setae (st1���st4) and three pairs of poroids, length 258���292, width 159���182, strongly sclerotized and reticulated, lateral cells longer than middle cells. Sternal seta st5 off sternal shield, at level of coxae IV. Opisthogastric region with 10 pairs of setae and six pairs of poroids visible. Gland pores gv2 well-developed and with three openings. One pair of metapodal shields present at level of setae JV1 and ZV1. Anal shield reticulated and elliptical. Setae pa and po subequal in length. All ventral setae simple. Stigma at level of coxae IV or between coxae III���IV, peritreme extending to level of coxae I. Lengths of setae: st1 33���36, st2 28���30, st3 28���30, st4 24���27, st5 24���26, JV1 28���30, JV2 34���36, JV3 34���36, JV5 46���49, ZV1 18���20, ZV2 33���34, ZV3 30���32, ZV4 24���26, UR5 20���21, pa 26���28, po 28���31. Gnathosoma. Gnathotectum (Figure 27). Distal end of medial prong intraspecifically variable: round, forked or truncate, 54���65 in length, emerging from denticulate base. Fixed digit of chelicera (Figure 28), length 125���135, with four teeth, pilus dentilis and dorsal seta; movable digit 128���141, with three teeth. Palpus (Figure 29) length 239���266, trochanter bearing setae v1 and v2, seta v2 pilose distally and set on tubercle; femur with five pairs of setae, seta al rod-shaped, lateral end of femur with a small tubercle; genu with six pairs of setae, setae al1 and al2 spatulate distally; tibia with 14 pairs of setae; tarsus with 15 setae and 3-tined apotele. Subcapitulum (Figure 30), length 216���242, width 192���225, with four pairs of setae (lengths of setae: h1 68���72, h2 38���45, h3 96���112, pcx 46���53). Corniculus (82���96), long, slender and reaching midpoint of palp femur; salivary styli run from outside bases of corniculus, beginning lateral and below base of seta h1; corniculus grooved to accommodate salivary styli. Deutosternal groove with 10���12 rows of denticles. Legs. Leg ��� (Figures 31, 32) 626���770 in length. Tarsus ��� with seven discernible solenidia. Length of leg II 589���623 (Figure 33), leg III 551���599 (Figure 34) and leg IV 714���782 (Figures 35, 36). Coxa III with a small tubercle bearing seta pv. Most tactile setae simple, a few with pilose ends, setae al2 very long on tarsus IV. Setal formulae and number of leg setae shown in Table 1. Female (Figures 37���50) Dorsum (Figure 37). Idiosoma length 984���1238, width 706���791. Podonotal and opisthonotal shields strongly reticulated. Podonotal shield, length 498���556, width 542���593, bearing nine pairs of poroids visually and 21 pairs of short, fine setae, excepting j1, j4, z5 and r3 brush-like. Seta r4 off shield. Posterior margin of podonotal shield and anterior margin of opisthonotal shield closely aligned, each with undulating margins. Opisthonotal shield length 439���472, width 499���564, with 13 pairs of poroids visually and 12 pairs of setae, of which three brush-like (Z1, Z3 and J5). Membranous cuticle bearing one pairs of poroids visibly and 14 pairs of setae (r4, r6, J6, Z5���Z6, S4���S6, R1���R6), which of only seta Z6 pilose distally. Lengths of dorsal setae on shields: j1 57���60, j2 23���25, j3 29���31, j4 64���68, j5 20���25, j6 20���23, z1 22���24, z2 20���23, z3 18���23, z4 22���24, z5 68���71, z6 20���22, s1 20 ���23, s2 19 ���23, s3 19 ���23, s4 22 ���25, s5 19 ���24, s6 19 ���23, r2 19���24, r3 96���101, r4 20���24, r5 26���30, J1 24���27, J2 25���29, J3 24���28, J4 26���30, J5 90���95, Z1 83���86, Z2 28���33, Z3 88���92, Z4 25���29, S1 21 ���24, S2 27 ���32, S3 25 ���29. Venter (Figure 38). Tritosternum with pilose laciniae, length 131���148. Base of tritosternum, length 64���72, flanked by two or three pairs of presternal shields close to each other, of which one near to median evidently larger than other two and anterolateral shield sometimes fragmented. Sternal shield (126���137 long, 193���209 wide) reticulated, with three pairs of setae (st1���3), of which st2 slightly thicker and shorter than st1 and st3, and two pairs of poroids (iv1���iv2). Anterior margin of sternal shield slightly concave, posterior margin deeply notched. Metasternal shield clearly detached from sternal shield, bearing st4 and poroids iv3. Genital shield (265���289 long, 272���285 wide) bearing a pair of simple epigynal setae (st5), the anterior half narrow and pointed at end and the posterior separated from the opisthogastric shield. Genital shield fused with region of opisthogastric shield at gv2 glands. Endogynium (Figures 39, 40) length 183���218, width 130���154, with lateral lines forming a curtain-shaped decoration on inside of each side, base conchoidal, nearly equal to distance between bases of setae st5 (in ventral view). Opisthogastric shield gradually narrowed, fused posteriorly with small perianal plate and bearing three pairs of poroids visually and seven pairs of setae, of which JV2, JV3, JV4, ZV2 and ZV3 with slight pilose ends. Anal region with gland pores gv3 and setae pa and po. Seta JV5 brush-like, on soft cuticle. Peritreme length 472���487, extending anteriorly to level of coxa I. Lengths of ventral setae: st1 55���58, st2 46���51, st3 57���61, st4 56���59, st5 62���65, JV1 49���53, JV2 57���61, JV3 63���66, JV4 77���62, JV5 86���92, ZV1 33���36, ZV2 53���56, ZV3 43���47, ZV4 33���36, UR5 33���35, UR6 32���34, po 28���32, pa 17���19. Gnathosoma. Gnathotectum as in figure 41, central prong smooth, length 69���73. Fixed digit of chelicera (Figure 42), length 128���138, with four teeth and a pilus dentilis, movable digit length 139���153, with three teeth. Palpus (Figure 43) as in deutonymph, length 245���289, distolateral palp femur with hook-like projection. Subcapitulum (Figure 44) as in deutonymph, length 257���273, width 220���235; deutosternal groove with 10���12 visible rows of fine denticles. Lengths of setae: h1 73���80, h2 95���103, h3 28���32, pcx 43���47. Corniculus length 106���118. Legs. Leg ��� 884���956 (Figures 45, 46), tarsus ��� with seven discernible solenidia. Length of leg II 716���771 (Figure 47), leg III 638���709 (Figure 48), leg IV 907���963 (Figures 49, 50). Coxa III with a small tubercle bearing seta pv. Femur IV with a long seta av1. Most leg tactile setae simple and a few with pilose ends. Setal formulae and number of legs setae shown in Table 1. Male (Figures 51���64) Dorsum (Figure 51). Idiosoma length 949���982, width 665���698. Dorsal shield covering nearly entire dorsum, although a complete transverse suture present between podonotal and opisthonotal shields. Podonotal region with seven pairs of poroids visually and 22 pairs of setae, of which j1, j4, z5, r3 brush-like. Opisthonotal region with seven pairs of poroids visually and 23���25 pairs of setae, of which four brush-like (Z1, Z3, J5 and Z6). Venter (Figure 52). Tritosternum bearing pilose laciniae (62���76), the base of tritosternum reduced and covered by genital lamina (Figure 53). Genital lamina length 97���104, width 48���56, flanked by two pairs of presternal shields, posterior shield subtriangular and obviously larger than anterior shield, which is sometimes fragmented into two shields. Sternogenital shield (length 246���281), with five pairs of setae (st1���5) and three pairs of poroids, separated from opisthogastric region by a narrow transverse suture and coalescing in region of gv2 glands. Opisthogastric region with 13 pairs of setae, of which six pairs (JV2, JV3, JV4, JV5, ZV2 and ZV3) stout and with pilose ends. Peritreme length 411���482. Gnathosoma. Central prong of gnathotectum smooth, length 69���76 (Figure 54). Fixed digit of chelicera with three teeth, movable with one tooth, spermatotreme distally fused with movable digit (Figure 55). Palpus as in the female, length 246���283 (Figure 56). Corniculus length 102���113. Palp chaetotaxy, corniculus and venter of gnathosoma (Figure 57) similar to female., Published as part of Yao, Mao-Yuan, Guo, Jian-Jun, Yi, Tian-Ci & Jin, Dao-Chao, 2020, Description of Cornigamasus allotritosternus sp. nov. (Mesostigmata: Parasitidae) from China, with an emphasis on the ontogenetic development of setae, pp. 462-486 in Zootaxa 4821 (3) on pages 463-474, DOI: 10.11646/zootaxa.4821.3.3, http://zenodo.org/record/4400976, {"references":["Witalinski, W. (2014) Description of the female of Cornigamasus ocliferius Skorupski & Witalinski, 1997 with a key to Cornigamasus species (Parasitiformes: Mesostigmata: Gamasida: Parasitidae). Genus, 25, 341 - 350."]}

Torrenticola wuyiensis Gu & Guo sp. nov. urn:lsid:zoobank.org:act: 69E7FE0A-89D6-4CF0-8E20-7E007FA65B62 Figs 9���12 Diagnosis Idiosoma elliptical; dorsal plate arrangement: 2+2p+1, posterior pair of anterior platelets half fused to dorsal plate; infracapitular bay wide U-shaped; E 4 on same line with 5 th pair of acetabula. Etymology This new species is named after Wuyishan (Wuyi Mountain), where the new species was collected. Material examined Holotype China ��� ♂; Wuyishan; 27��44���24��� N, 117��41���18��� E, 860 m a.s.l.; 2 Aug. 2018; X.Y. Gu leg.; FJ- TO-20180807. Paratypes China ��� 1 ♂, 4 ♀♀; same collection data as for holotype; FJ-TO-20180808 to FJ-TO-20180812. Description Male (n = 2) BODY. Idiosoma elliptical, L/W ratio 1.44 (1.38) (Fig. 9B). Dorsal plate arrangement: 2+2p+1 (Fig. 9A). Infracapitular bay wide U-shaped, Cx-II���III mL relatively short; E 4 on same line with 5 th pair of acetabula; V 1 anterior to V 2, V 2 almost at same level of Ap (Fig. 9B). Gnathosoma dorsal apodeme short, ventral apodeme long, rostrum curved slightly to ventrum (Fig. 9D). Ejaculatory complex with well developed anterior keel and proximal arms (Fig. 9E). Palp: P-1 short, with one dorsal seta; P-2 with three dorsal setae, one ventral seta at base of sharp ventral prolongation; P-3 with two dorsal setae, one ventral seta on sharp ventral prolongation; P-4 with two ventral extensions, bearing four setae (Fig. 9C). Legs I���IV showed as Fig. 10. MEASUREMENTS. Idiosoma L 745 (746), W 514 (539); dorsal shield L 607 (614), dorsal plate L 568 (578), frontal platelets L 127 (132). Infracapitular bay L 128 (154); Cx-1 L 207 (204), mL 132 (113), Cx-II���III mL 73 (87); Gf L 158 (162), W 100 (109), distance between Gf and Ap 158 (144). Gnathosoma vL 331 (341), dL 252 (274), chelicera bs L 352 (320), claw L 49 (67). Ejaculatory complex (Fig. 13E), L 195 (221), aL 146 (160) width 96 (113). L of palp segments: P-1, 44 (40); P-2, 111 (98); P-3, 61 (60); P-4, 91 (83); P-5, 19 (20). L of leg segments: I-L-1���6: - (43); 96 (92), 78 (91), 100 (102), 119 (118), 127 (110); II-L-1���6: 42 (47), 99 (96), 86 (80), 101 (102), 114 (117), 105 (121); III-L-1���6: 37 (53), 91 (108), 77 (85), 100 (124), 117 (149), 118 (143); IV-L-1���6: 114 (112), 108 (115), 124 (127), 171 (164), 176 (174), 177 (178). Female (n = 4) BODY. Body features same as male except: P-2 with four dorsal setae; P-3 with three dorsal setae (Fig. 11C); gnathosoma ventral apodeme shorter and thicker (Fig. 11D). MEASUREMENTS. Idiosoma L 826 (705���826), W 573 (495���573). Dorsal shield L 691 (585���691), dorsal plate L 652 (551���652), frontal platelets L 146 (131���146). Infracapitular bay depth 176 (136���176); Cx-I L 171 (132���171), mL 136 (119���136), Cx-II���III mL 54 (54���78). Gf L 169 (154���169), W 139 (110��� 139), distance between Gf and Ap 186 (144���186). Gnathosoma vL 363 (323���363), dL 269 (249���269), chelicera bs L 325 (325���378), claw L 63 (59���63). L of palp: P-1, 49 (39���49); P-2, 127 (105���127); P-3, 75 (62���75); P-4, 102 (94���102); P-5, 22 (22���23). L of leg segments: I-L-1���6: 45 (42���45), 100 (95���100), 90 (83���90), 110 (101���110), 117 (109���117), 116 (108���116); II-L-1���6: 47 (45���47), 108 (97���108), 81 (75���81), 113 (99���113), 126 (116���126), 130 (127���130); III-L-1���6: 57 (45���57), 121 (69���121), 92 (82��� 92), 138 (115���138), 154 (144���154), 154 (154���155); IV-L-1���6: 113 (113���116), 122 (111���122), 133 (119���133), 172 (154���172), 185 (177���185), 185 (179���185). Distribution China (Wuyishan). Habitat Streamlet. Remarks This new species is similar to Torrenticola ussuriensis (Sokolow, 1940) in the shape of the palp and dorsal plates,. T. ussuriensis was originally described by Sokolow (1934) from the Primory Territory in the Russian Far East, and later reported from River In��zava in Japan (Enami 1940), and from Korea (Pe��ić et al. 2013). Differences between T. wuyiensis and T. ussuriensis are given in Table 1., Published as part of Gu, Xin-Yao, Jin, Dao-Chao & Guo, Jian-Jun, 2020, Three new species and one new record of Torrenticolidae (Acari, Hydrachnidia) from Wuyishan with an updated key for Chinese fauna, pp. 1-23 in European Journal of Taxonomy 625 on pages 12-16, DOI: 10.5852/ejt.2020.625, http://zenodo.org/record/3750775, {"references":["Sokolow I. 1934. Beitrage zur Kenntnis der Hydracarinenfauna des Ussuri Gebietes II. Hydracarinen der fliessenden Gewasser. Zoologische Jahrbucher, Abteilung fur Systematik, Okologie und Geographie der Tiere 65: 309 - 388.","Enami M. 1940. Water mites from Izu. I. Rheophilous water mites from river Inozawa. To hoku Daigaku. Science reports of Tohoku University (Series 4, Biology) 15: 225 - 229.","Pesic V., Semenchenko K. A. & Lee W. 2013. Torrenticolid water mites from Korea and the Russian Far East. ZooKeys 299: 21 - 48. https: // doi. org / 10.3897 / zookeys. 299.5272"]}

Torrenticola spinextension Gu & Guo sp. nov. urn:lsid:zoobank.org:act: 2CAE5F0A-B477-4CE0-B712-3F609A7B6284 Figs 5���8 Diagnosis Idiosoma elliptical; dorsal plate arrangement: 4+1; infracapitular bay narrow U-shaped; V 1 anterior to V 2 , V 2 almost at the same level of Ap; P-2 with a laterally compressed, apically serrated and spine-like ventrodistal extension. Etymology Named after the shape of ventral extension on P-2. The specific name is from Latin words ��� spina ��� (thorn), there we used ��� spin -��� and ��� extension ��� (extension or prolongation); used as a noun in apposition. Material examined Holotype China ��� ♂; Wuyishan; 27��40���54��� N, 117��47���31��� E, 311 m a.s.l.; 4 Aug. 2018; X.Y. Gu leg.; FJ-TO-20180804. Paratype China ��� 1 ♀; same collection data as for holotype; FJ-TO-20180805. Description Male (n = 1) BODY. Idiosoma elliptical, L/W ratio 1.5 (Fig. 5B). Dorsal plate arrangement: 4+1 (Fig. 5A). Infracapitular bay U-shaped, Cx-II���III mL relatively long; E 4 on same line with 4 th pair of acetabula; V 1 anterior to V 2, V 2 slightly rostral to Ap (Fig. 5B). Ejaculatory complex with well-developed anterior keel and proximal arms (Fig. 5C). Gnathosoma dorsal apodeme short and pointed, ventral apodeme long and wide (Fig. 5D). Palp: P-1 long, with one dorsal seta; P-2 short and wide, with three dorsal setae, laterally compressed, apically serrated and spine-like ventrodistal extension, one very short seta laterally at the base of extension; P-3 with two dorsal setae, and one ventral seta on ventral prolongation; P-4 with one tiny dorsal seta and two ventral extensions, bearing one long and three short setae (Fig. 6A). Legs I���IV as shown in Fig. 6 B���E: the claw of Leg-I damaged. MEASUREMENTS. Idiosoma L 635, W 429. Dorsal shield L 520, W 479, dorsal plate L 479, frontal platelets L 104, shoulder platelets L 157. Infracapitular bay depth 136; Cx-I L 228, mL 92, Cx-II���III mL 110; Gf L 140, W 112, distance between Gf and Ap 108. Gnathosoma vL 296, dL 230, chelicera bs L 305, claw L 50. Ejaculatory complex (Fig. 5C), L 206, aL 139, W 92. L of palp segments: P-1, 32; P-2, 102; P-3, 50; P-4, 101; P-5, 22. L of leg segments: I-L-1���6: 41, 86, 72, 84, 90, 91; II-L-1���6: 37, 82, 65, 82, 95, 109; III-L-1���6: 49, 82, 73, 100, 114, 130; IV-L-1���6: 102, 86, 106, 123, 143, 155. Female (n = 1) BODY. Body features same as male except: dorsal plate with reddish or dark purple pattern at anterior and posterior parts; location of muscle scars posterior to male; E 4 on same line with 5 th pair of acetabula; line of primary sclerotization farther ahead D 3 and D 4 . MEASUREMENTS. Idiosoma L 731, W 487. Dorsal shield L 577, W 427; dorsal plate L 538; frontal platelets L 117; shoulder platelets L 175. Infracapitular bay depth 161; Cx-I L 267, mL 106, Cx-II���III mL 69; Gf L 150, W 122, distance between Gf and Ap 155. Gnathosoma vL 330, dL 256, chelicera bs L 338, claw L 66. L of palp: P-1, 35; P-2, 127; P-3, 62; P-4, 118; P-5, 19. L of leg segments: I-L-1���6: 39, 64, 78, 95, 98, 96; II-L-1���6: 36, 85, 66, 89, 105, 118; III-L-1���6: 45, 71, 79, 108, 123, 135; IV-L-1���6: 123, 98, 114, 148, 157, 158. Male (n = 1) BODY. Idiosoma elliptical, L/W ratio 1.5 (Fig. 5B). Dorsal plate arrangement: 4+1 (Fig. 5A). Infracapitular bay U-shaped, Cx-II���III mL relatively long; E 4 on same line with 4 th pair of acetabula; V 1 anterior to V 2, V 2 slightly rostral to Ap (Fig. 5B). Ejaculatory complex with well-developed anterior keel and proximal arms (Fig. 5C). Gnathosoma dorsal apodeme short and pointed, ventral apodeme long and wide (Fig. 5D). Palp: P-1 long, with one dorsal seta; P-2 short and wide, with three dorsal setae, laterally compressed, apically serrated and spine-like ventrodistal extension, one very short seta laterally at the base of extension; P-3 with two dorsal setae, and one ventral seta on ventral prolongation; P-4 with one tiny dorsal seta and two ventral extensions, bearing one long and three short setae (Fig. 6A). Legs I���IV as shown in Fig. 6 B���E: the claw of Leg-I damaged. MEASUREMENTS. Idiosoma L 635, W 429. Dorsal shield L 520, W 479, dorsal plate L 479, frontal platelets L 104, shoulder platelets L 157. Infracapitular bay depth 136; Cx-I L 228, mL 92, Cx-II���III mL 110; Gf L 140, W 112, distance between Gf and Ap 108. Gnathosoma vL 296, dL 230, chelicera bs L 305, claw L 50. Ejaculatory complex (Fig. 5C), L 206, aL 139, W 92. L of palp segments: P-1, 32; P-2, 102; P-3, 50; P-4, 101; P-5, 22. L of leg segments: I-L-1���6: 41, 86, 72, 84, 90, 91; II-L-1���6: 37, 82, 65, 82, 95, 109; III-L-1���6: 49, 82, 73, 100, 114, 130; IV-L-1���6: 102, 86, 106, 123, 143, 155. Female (n = 1) BODY. Body features same as male except: dorsal plate with reddish or dark purple pattern at anterior and posterior parts; location of muscle scars posterior to male; E 4 on same line with 5 th pair of acetabula; line of primary sclerotization farther ahead D 3 and D 4 . MEASUREMENTS. Idiosoma L 731, W 487. Dorsal shield L 577, W 427; dorsal plate L 538; frontal platelets L 117; shoulder platelets L 175. Infracapitular bay depth 161; Cx-I L 267, mL 106, Cx-II���III mL 69; Gf L 150, W 122, distance between Gf and Ap 155. Gnathosoma vL 330, dL 256, chelicera bs L 338, claw L 66. L of palp: P-1, 35; P-2, 127; P-3, 62; P-4, 118; P-5, 19. L of leg segments: I-L-1���6: 39, 64, 78, 95, 98, 96; II-L-1���6: 36, 85, 66, 89, 105, 118; III-L-1���6: 45, 71, 79, 108, 123, 135; IV-L-1���6: 123, 98, 114, 148, 157, 158. Distribution China (Wuyishan). Habitat Streamlet. Remarks By having a laterally compressed, apically serrated and spine-like ventrodistal extension on P-2, and one very short seta laterally at the base of extension, this new species is similar to T. borneoensis Pe��ić & Smit, 2014 (Pe��ić & Smit 2014). But there are obvious differences: dorsal plate arrangement is 4+ 1 in T. spinextension (2+ 1 in T. borneoensis); ventral extension of P-3 is smooth in T. spinextension (serrate in T. borneoensis); two ventral extensions on P-4 are close to each other in T. spinextension (markedly apart from each other in T. borneoensis)., Published as part of Gu, Xin-Yao, Jin, Dao-Chao & Guo, Jian-Jun, 2020, Three new species and one new record of Torrenticolidae (Acari, Hydrachnidia) from Wuyishan with an updated key for Chinese fauna, pp. 1-23 in European Journal of Taxonomy 625 on pages 7-11, DOI: 10.5852/ejt.2020.625, http://zenodo.org/record/3750775, {"references":["Pesic V. & Smit H. 2014. Torrenticolid water mites (Acari: Hydrachnidia: Torrenticolidae) from Malaysian Borneo. Zootaxa 3840 (1): 59 - 60. https: // doi. org / 10.11646 / zootaxa. 3840.1.1"]}

Torrenticola wuyiensis Gu & Guo sp. nov. urn:lsid:zoobank.org:act: 69E7FE0A-89D6-4CF0-8E20-7E007FA65B62 Figs 9–12 Diagnosis Idiosoma elliptical; dorsal plate arrangement: 2+2p+1, posterior pair of anterior platelets half fused to dorsal plate; infracapitular bay wide U-shaped; E 4 on same line with 5 th pair of acetabula. Etymology This new species is named after Wuyishan (Wuyi Mountain), where the new species was collected. Material examined Holotype China • ♂; Wuyishan; 27°44′24″ N, 117°41′18″ E, 860 m a.s.l.; 2 Aug. 2018; X.Y. Gu leg.; FJ- TO-20180807. Paratypes China • 1 ♂, 4 ♀♀; same collection data as for holotype; FJ-TO-20180808 to FJ-TO-20180812. Description Male (n = 2) BODY. Idiosoma elliptical, L/W ratio 1.44 (1.38) (Fig. 9B). Dorsal plate arrangement: 2+2p+1 (Fig. 9A). Infracapitular bay wide U-shaped, Cx-II–III mL relatively short; E 4 on same line with 5 th pair of acetabula; V 1 anterior to V 2, V 2 almost at same level of Ap (Fig. 9B). Gnathosoma dorsal apodeme short, ventral apodeme long, rostrum curved slightly to ventrum (Fig. 9D). Ejaculatory complex with well developed anterior keel and proximal arms (Fig. 9E). Palp: P-1 short, with one dorsal seta; P-2 with three dorsal setae, one ventral seta at base of sharp ventral prolongation; P-3 with two dorsal setae, one ventral seta on sharp ventral prolongation; P-4 with two ventral extensions, bearing four setae (Fig. 9C). Legs I–IV showed as Fig. 10. MEASUREMENTS. Idiosoma L 745 (746), W 514 (539); dorsal shield L 607 (614), dorsal plate L 568 (578), frontal platelets L 127 (132). Infracapitular bay L 128 (154); Cx-1 L 207 (204), mL 132 (113), Cx-II–III mL 73 (87); Gf L 158 (162), W 100 (109), distance between Gf and Ap 158 (144). Gnathosoma vL 331 (341), dL 252 (274), chelicera bs L 352 (320), claw L 49 (67). Ejaculatory complex (Fig. 13E), L 195 (221), aL 146 (160) width 96 (113). L of palp segments: P-1, 44 (40); P-2, 111 (98); P-3, 61 (60); P-4, 91 (83); P-5, 19 (20). L of leg segments: I-L-1–6: - (43); 96 (92), 78 (91), 100 (102), 119 (118), 127 (110); II-L-1–6: 42 (47), 99 (96), 86 (80), 101 (102), 114 (117), 105 (121); III-L-1–6: 37 (53), 91 (108), 77 (85), 100 (124), 117 (149), 118 (143); IV-L-1–6: 114 (112), 108 (115), 124 (127), 171 (164), 176 (174), 177 (178). Female (n = 4) BODY. Body features same as male except: P-2 with four dorsal setae; P-3 with three dorsal setae (Fig. 11C); gnathosoma ventral apodeme shorter and thicker (Fig. 11D). MEASUREMENTS. Idiosoma L 826 (705–826), W 573 (495–573). Dorsal shield L 691 (585–691), dorsal plate L 652 (551–652), frontal platelets L 146 (131–146). Infracapitular bay depth 176 (136–176); Cx-I L 171 (132–171), mL 136 (119–136), Cx-II–III mL 54 (54–78). Gf L 169 (154–169), W 139 (110– 139), distance between Gf and Ap 186 (144–186). Gnathosoma vL 363 (323–363), dL 269 (249–269), chelicera bs L 325 (325–378), claw L 63 (59–63). L of palp: P-1, 49 (39–49); P-2, 127 (105–127); P-3, 75 (62–75); P-4, 102 (94–102); P-5, 22 (22–23). L of leg segments: I-L-1–6: 45 (42–45), 100 (95–100), 90 (83–90), 110 (101–110), 117 (109–117), 116 (108–116); II-L-1–6: 47 (45–47), 108 (97–108), 81 (75–81), 113 (99–113), 126 (116–126), 130 (127–130); III-L-1–6: 57 (45–57), 121 (69–121), 92 (82– 92), 138 (115–138), 154 (144–154), 154 (154–155); IV-L-1–6: 113 (113–116), 122 (111–122), 133 (119–133), 172 (154–172), 185 (177–185), 185 (179–185). Distribution China (Wuyishan). Habitat Streamlet. Remarks This new species is similar to Torrenticola ussuriensis (Sokolow, 1940) in the shape of the palp and dorsal plates,. T. ussuriensis was originally described by Sokolow (1934) from the Primory Territory in the Russian Far East, and later reported from River Inôzava in Japan (Enami 1940), and from Korea (Pešić et al. 2013). Differences between T. wuyiensis and T. ussuriensis are given in Table 1.

Torrenticola suptilisrostrum Gu & Guo sp. nov. urn:lsid:zoobank.org:act: EEBC35EF-7EFE-4FEA-978D-3D4D2D869986 Figs 1���4 Diagnosis Idiosoma elliptical; dorsal plate arrangement: 2+2p+1; dorsal plate with a colour pattern, hour-glassshaped with pale ���shoulder-patches���; infracapitular bay V-shaped; E 4 on the same line with the 4 th pair of acetabula; infracapitular rostrum extremely slender and slightly curved towards the dorsum. Etymology The specific name is from the Latin words ��� suptilis ��� (slender) and ��� rostrum ��� (beak), referring to the slender rostrum; used as a noun in apposition. Material examined Holotype China ��� ♂; Wuyishan; 27��40���54��� N, 117��47���31��� E, 311 m a.s.l.; 4 Aug. 2018; X.Y. Gu leg.; FJ- TO-20180801. Paratypes China ��� 1 ♂, 1 ♀; same collection data as for holotype; FJ-TO-20180802 to FJ-TO-20180803. Description Male (n = 2) BODY. Idiosoma elliptical, L/W ratio 1.5 (1.5) (Fig. 1B). Dorsal plate arrangement: 2+2p+1; dorsal plate with colour pattern, hour-glass-shaped with pale ���shoulder-patches��� (Fig. 1A). Infracapitular bay V-shaped, Cx-II���III mL relatively long; E 4 on same line with 4 th pair of acetabula; V 1 anterior to V 2 , V 2 almost at same level of Ap (Fig. 1B). Gnathosoma dorsal apodeme short and blunt, ventral apodeme long and wide, rostrum long, extremely slender, curved slightly to dorsum (Fig. 1C). Palp (Fig. 2A): P-1 long, with one dorsal seta; P-2 with three dorsal setae and one ventral seta on ventrodistal prolongation, which is slender and curved towards distal; P-3 with two dorsal setae and one ventral seta on ventrodistal prolongation; P-4 with two developed ventral extensions, bearing one long and three short setae. Legs I���IV as shown in Fig. 2 B���E. Ejaculatory complex with well developed anterior keel and proximal arms (Fig. 2F). MEASUREMENTS. Idiosoma L 688 (698), W 462 (454); dorsal shield L 563 (563), W 418 (402); dorsal plate L 509 (529), frontal platelets L 122 (115), shoulder platelets L 169 (168). Infracapitular bay depth 160 (170); Cx-1 L 207 (204), mL 104 (105), Cx-II���III mL 103 (99); Gf L 138 (137), W 105 (112), distance between Gf and Ap 118 (133). Gnathosoma vL 351 (359), dL 277 (280), chelicera bs L 307 (376), claw L 39 (44). Ejaculatory complex (Fig. 2f), L 177 (166), aL 123 (112), W 85 (78). L of palp segments: P-1, 40 (42); P-2, 114 (121); P-3, 61 (53); P-4, 94 (103); P-5, 16 (13). L of leg segments: I-L-1���6: 39 (35), 82 (78), 85 (83), 99 (102), 106 (112), 92 (94); II-L-1���6: 53 (34), 95 (86), 67 (74), 94 (90), 104 (109), 98 (108); III-L-1���6: 44 (43), 90 (59), 76 (84), 112 (109), 112 (128), 128 (129); IV-L-1���6: 94 (112), 105 (93), 107 (113), 128 (144), 143 (150), 137 (121). Female (n = 1) BODY. Body features same as for the male. MEASUREMENTS. Idiosoma L 687, W 460. Dorsal shield L 558, W 418; dorsal plate L 512, frontal platelets L 120, shoulder platelets L 175. Infracapitular bay L 159; Cx-1 L 194, mL 89, Cx-II���III mL 105. Gf L 135, W 104, distance between Gf and Ap 125. Gnathosoma vL 330, dL 256, chelicera bs L 338, claw L 66. L of palp: P-1, 35; P-2, 127; P-3, 62; P-4, 118; P-5, 19. L of leg segments: I-L-1���6: 34, 83, 81, 95, 107, 95; II-L-1���6: 34, 54, 69, 93, 104, 96; III-L-1���6: 44, 58, 74, 107, 123, 122; IV-L-1���6: 105, 90, 110, 142, 150, 141. Male (n = 2) BODY. Idiosoma elliptical, L/W ratio 1.5 (1.5) (Fig. 1B). Dorsal plate arrangement: 2+2p+1; dorsal plate with colour pattern, hour-glass-shaped with pale ���shoulder-patches��� (Fig. 1A). Infracapitular bay V-shaped, Cx-II���III mL relatively long; E 4 on same line with 4 th pair of acetabula; V 1 anterior to V 2 , V 2 almost at same level of Ap (Fig. 1B). Gnathosoma dorsal apodeme short and blunt, ventral apodeme long and wide, rostrum long, extremely slender, curved slightly to dorsum (Fig. 1C). Palp (Fig. 2A): P-1 long, with one dorsal seta; P-2 with three dorsal setae and one ventral seta on ventrodistal prolongation, which is slender and curved towards distal; P-3 with two dorsal setae and one ventral seta on ventrodistal prolongation; P-4 with two developed ventral extensions, bearing one long and three short setae. Legs I���IV as shown in Fig. 2 B���E. Ejaculatory complex with well developed anterior keel and proximal arms (Fig. 2F). MEASUREMENTS. Idiosoma L 688 (698), W 462 (454); dorsal shield L 563 (563), W 418 (402); dorsal plate L 509 (529), frontal platelets L 122 (115), shoulder platelets L 169 (168). Infracapitular bay depth 160 (170); Cx-1 L 207 (204), mL 104 (105), Cx-II���III mL 103 (99); Gf L 138 (137), W 105 (112), distance between Gf and Ap 118 (133). Gnathosoma vL 351 (359), dL 277 (280), chelicera bs L 307 (376), claw L 39 (44). Ejaculatory complex (Fig. 2f), L 177 (166), aL 123 (112), W 85 (78). L of palp segments: P-1, 40 (42); P-2, 114 (121); P-3, 61 (53); P-4, 94 (103); P-5, 16 (13). L of leg segments: I-L-1���6: 39 (35), 82 (78), 85 (83), 99 (102), 106 (112), 92 (94); II-L-1���6: 53 (34), 95 (86), 67 (74), 94 (90), 104 (109), 98 (108); III-L-1���6: 44 (43), 90 (59), 76 (84), 112 (109), 112 (128), 128 (129); IV-L-1���6: 94 (112), 105 (93), 107 (113), 128 (144), 143 (150), 137 (121). Female (n = 1) BODY. Body features same as for the male. MEASUREMENTS. Idiosoma L 687, W 460. Dorsal shield L 558, W 418; dorsal plate L 512, frontal platelets L 120, shoulder platelets L 175. Infracapitular bay L 159; Cx-1 L 194, mL 89, Cx-II���III mL 105. Gf L 135, W 104, distance between Gf and Ap 125. Gnathosoma vL 330, dL 256, chelicera bs L 338, claw L 66. L of palp: P-1, 35; P-2, 127; P-3, 62; P-4, 118; P-5, 19. L of leg segments: I-L-1���6: 34, 83, 81, 95, 107, 95; II-L-1���6: 34, 54, 69, 93, 104, 96; III-L-1���6: 44, 58, 74, 107, 123, 122; IV-L-1���6: 105, 90, 110, 142, 150, 141. Distribution China (Wuyishan). Habitat Streamlet. Remarks The new species, Torrenticola suptilisrostrum sp. nov., is similar to T. fagei E. Angelier, 1949 (Martin 2009). The new species shares the character of an infracapitular rostrum extremely slender and slightly curved towards the dorsum with T. fagei. However, T. suptilisrostrum sp. nov. differs from the latter by E 4 on the same line with the 4 th pair of acetabula (5 th in T. fagei); dorsal plate 2+2p+1 (dorsal plate 4+ 1 in T. fagei); P-2 robust and compact (P-2 relatively thin and long in T. fagei)., Published as part of Gu, Xin-Yao, Jin, Dao-Chao & Guo, Jian-Jun, 2020, Three new species and one new record of Torrenticolidae (Acari, Hydrachnidia) from Wuyishan with an updated key for Chinese fauna, pp. 1-23 in European Journal of Taxonomy 625 on pages 3-7, DOI: 10.5852/ejt.2020.625, http://zenodo.org/record/3750775, {"references":["Martin P. A. 2009. Redescription of Torrenticola (Megapalpis) fagei (E. Angelier, 1949) (Acari, Hydrachnidia). Lauterbornia, 67: 183 - 188."]}

Key to the known species of the family Torrenticolidae in China. (Updated Gu & Guo 2019 and Gu et al. 2019) 3. Infracapitulum dorsal apodeme short, P-2 and P-3 with obvious ventral protrusions or hyaline expansions (Genus Torrenticola)...................................................................................................... 4 ��� Infracapitulum dorsal apodeme long, P-2 and P-3 without projections on ventral side (Genus Monatractides)................................................................................................................................ 21 4. Dorsal plate arrangements: 4+1........................................................................................................ 5 ��� Dorsal plate arrangements: 2+1, 2+2p+1....................................................................................... 18 5. Infracapitular rostrum short ( T. nanshihensis Pe��ić et al. 7. P-3 with a very long tapering ventral projection.............................................................................. 8 ��� P-3 with a triangular, relatively short ventral projection.................................................................. 9 8. P-2 and P-3 with the smooth and sharp ventral extension.......................... T. projectura Pe��ić et al. ��� P-2 and P-3 with the serrated ventral extension.......................................... T. dentifera Wiles, 1991 9. Infracapitular bay deep, ventral apodeme L about two times of dorsal apodeme.......................... 10 ��� Infracapitular bay shallow, ventral apodeme L three times longer than dorsal apodeme.................................................................................................................................................... T. curta Jin, 1997 10. Idiosoma roundish, the lateral view of infracapitulum acute triangle-like....................................................................................................................................................... T. siamis Pe��ić & Smit, 2009 ��� Idiosoma elliptical, infracapitulum regular triangle-like in the lateral view....................................................................................................................................................... T. trigona Gu & Guo, 2019 11. Ventral extensions of P-2, P-3 serrate............................................................................................. 12 ��� Ventral extensions of P-2, P-3 smooth............................................................................................ 13 12. Dorsal apodeme of infracapitulum with a fine spine, AP close to the line of primary sclerotization, E 4 at the same level as the 3 rd pair of acetabula....... T. yanjinensis Jin, 1997 ��� Dorsal apodeme of infracapitulum with a broad spine, AP on the line of primary sclerotization, E 4 at the same level as the 4 th pair of acetabula...................................................... T. dentipalpis Jin, 1997 13. The concavity between the ventral prolongations of P-4 small, idiosoma elliptical...................... 14 ��� The concavity between the ventral prolongations of P-4 big and obvious, idiosoma oblate........................................................................................................................ T. fodingensis Gu & Guo, 2018 14. Ap anterior to V 2 .............................................................................................................................. 15 ��� Ap on the line with V 2 or posterior to V 2 ......................................................................................... 16 15. P-2 longer than ⅓ total palp L, gnathosoma elongated, vL 308���381, dL 263���30..................................................................................................................................... T. tenuichelicera Gu & Guo, 2018 ��� P-2 shorter than ⅓ total palp L, gnathosoma normal, vL 284���302, dL 229���231................................................................................................................................................ T. nipponica (Enami, 1940) 16. Ap on the line with V 2 , shoulder platelets normal........................................................................... 17 ��� Ap posterior to V 2 , shoulder platelets offset to the inside............... T. hainanensis Gu & Guo, 2019 17. P-2 with a laterally compressed and apically serrated ventrodistal extension, spine-like...................................................................................................................... T. spinextension Gu & Guo sp. nov. ��� P-2 with a small sharp ventrodistal extension................................................. T. tetrapora Viets, 1935 18. Dorsal plate arrangements: 2+2p+1................................................................................................ 19 ��� Dorsal plate arrangements: 2+1, P-3 distal margin with denticles, P-4 stocky.......................................................................................................... T. taiwanicus Pe��ić et al. 19. Infracapitular rostrum short (T. suptilisrostrum Gu & Guo sp. nov. 20. About �� of shoulder platelet fused with the large dorsal plate, posterior suture line of Cx-I retrogressive........................................................................................ T. postfusina Gu & Guo 2019 ��� About �� of shoulder platelet fused with the large dorsal plate, posterior suture line of Cx-IV obvious and long........................................................................................... T. wuyiensis Gu & Guo sp. nov. Remark Torrenticola semicolor Viets, 1977 and Torrenticola alargada Goldschmidt, 2007, reported to be new records to Chinese fauna, were rechecked to be mis-determinated. So they are not included in the key., Published as part of Gu, Xin-Yao, Jin, Dao-Chao & Guo, Jian-Jun, 2020, Three new species and one new record of Torrenticolidae (Acari, Hydrachnidia) from Wuyishan with an updated key for Chinese fauna, pp. 1-23 in European Journal of Taxonomy 625 on pages 20-22, DOI: 10.5852/ejt.2020.625, http://zenodo.org/record/3750775, {"references":["Gu X. Y. & Guo J. J. 2019. Five new species of genera Torrenticola and Monatractides (Acari, Hydrachnidia, Torrenticolidae) from Hainan Island, China. Systematic and Applied Acarology 24 (12): 2460 - 2482. https: // doi. org / 10.11158 / saa. 24.12.12","Wiles P. R. 1991. Rheophilic watermites (Acari: Hydrachnidia) from mainland Malaysia. Acarologia 32 (1): 41 - 56.","Jin D. C. 1997. Hydrachnellae-morphology systematics a primary study of Chinese fauna. Guizhou Science and Technology Publishing House, Guiyang.","Enami M. 1940. Water mites from Izu. I. Rheophilous water mites from river Inozawa. To hoku Daigaku. Science reports of Tohoku University (Series 4, Biology) 15: 225 - 229.","Goldschmidt T. 2007. Studies on Latin American water mites of the genus Torrenticola Piersig, 1896 (Torrenticolidae, Hydrachnidia, Acari). Zoological Journal of the Linnean Society 150: 443 - 678. https: // doi. org / 10.1111 / j. 1096 - 3642.2007.00305. x"]}

Morimotanthribus Senoh & Trýzna, 2006 Type species: Morimotanthribus chinensis Senoh & Trýzna, 2006 Diagnosis. Body elongate, medium-sized (6.2–10.7 mm) (Figs. 1–4). Head elongate, eyes lateral, hemispherical, not emarginate. Rostrum comparatively long, gradually narrowed to antennal scrobes, then widened anteriorly, lateral margins strongly sinuate at antennal scrobes, forming a more or less top-shaped pattern (Figs. 10, 14). Antennal scrobes large, open, visible from dorsal view, reaching base of mandibles anteriorly. Segments of funicle distinctly thick; antennomere IX trapezoidal, X slightly transverse, XI triangular. Antennae slightly exceeding base of elytra in both sexes. Pronotum conspicuously narrower than elytra, slightly transverse, distinctly narrower than elytral base. Dorsal transverse carina almost straight or slightly convex, only shortly interrupted in middle, roundly connected with lateral carina, formed in wide arch. Lateral carina reaching to three-quarters of pronotum length. Elytra parallel-sided, narrowed posteriorly in last quarter, basal margin almost straight.

Morimotanthribus chinensis Senoh & Tr��zna, 2006 (Figs. 5���6, 15���18, 26) Type material. Holotype and paratype (males): China, W Hubei prov., road Badong [= Badong County (�� ���H)]��� Yesanguan [�������], Tiechanghuhang (Sic!) [= Tiechanghuang (������Ŕ)], 30��75���N, 110��03���E, 1300 m, 27.���28.vi.2003., Published as part of Li, Bo-Yan, Tr��zna, Milo�� & Guo, Jian-Jun, 2019, A new species of the genus Morimotanthribus Senoh & Tr��zna (Coleoptera Anthribidae) from South China, pp. 392-400 in Zootaxa 4701 (4) on pages 393-394, DOI: 10.11646/zootaxa.4701.4.5, http://zenodo.org/record/3558221, {"references":["Senoh, T. & Tryzna, M. (2006) Morimotanthribus chinensis (Coleoptera, Anthribidae), a new genus and species from China. Elytra, 34 (2), 397 - 401."]}

Li, Bo-Yan, Trýzna, Miloš, Guo, Jian-Jun (2019): A new species of the genus Morimotanthribus Senoh & Trýzna (Coleoptera Anthribidae) from South China. Zootaxa 4701 (4): 392-400, DOI: https://doi.org/10.11646/zootaxa.4701.4.5

Morimotanthribus Senoh & Tr��zna, 2006 Type species: Morimotanthribus chinensis Senoh & Tr��zna, 2006 Diagnosis. Body elongate, medium-sized (6.2���10.7 mm) (Figs. 1���4). Head elongate, eyes lateral, hemispherical, not emarginate. Rostrum comparatively long, gradually narrowed to antennal scrobes, then widened anteriorly, lateral margins strongly sinuate at antennal scrobes, forming a more or less top-shaped pattern (Figs. 10, 14). Antennal scrobes large, open, visible from dorsal view, reaching base of mandibles anteriorly. Segments of funicle distinctly thick; antennomere IX trapezoidal, X slightly transverse, XI triangular. Antennae slightly exceeding base of elytra in both sexes. Pronotum conspicuously narrower than elytra, slightly transverse, distinctly narrower than elytral base. Dorsal transverse carina almost straight or slightly convex, only shortly interrupted in middle, roundly connected with lateral carina, formed in wide arch. Lateral carina reaching to three-quarters of pronotum length. Elytra parallel-sided, narrowed posteriorly in last quarter, basal margin almost straight., Published as part of Li, Bo-Yan, Tr��zna, Milo�� & Guo, Jian-Jun, 2019, A new species of the genus Morimotanthribus Senoh & Tr��zna (Coleoptera Anthribidae) from South China, pp. 392-400 in Zootaxa 4701 (4) on page 393, DOI: 10.11646/zootaxa.4701.4.5, http://zenodo.org/record/3558221, {"references":["Senoh, T. & Tryzna, M. (2006) Morimotanthribus chinensis (Coleoptera, Anthribidae), a new genus and species from China. Elytra, 34 (2), 397 - 401."]}

Morimotanthribus chinensis Senoh & Trýzna, 2006 (Figs. 5–6, 15–18, 26) Type material. Holotype and paratype (males): China, W Hubei prov., road Badong [= Badong County (Ƃ ṪH)]— Yesanguan [ª±Ẍ], Tiechanghuhang (Sic!) [= Tiechanghuang (ṀṢŔ)], 30°75′N, 110°03′E, 1300 m, 27.–28.vi.2003.

Erythraeus (Zaracarus) hainanensis sp. nov. (Figs. 12–23) Diagnosis (larva). AL with swelling near bases; fnBFe = 3-3-3; coxala 2b with bifid ends. Ta I 141–158; Ti I 232– 237; Ta III 159–163; Ti III 336–358; fD 40–44. Description (n = 3; holotype, two paratypes). Dorsum. Idiosoma almost oval, with 42 (fD = 40–44 in paratypes) barbed and blunted setae behind scutum. Two pairs of eyes without platelets posterolateral to scutum. Six normal setae between two pairs of eyes. Scutum as transverse oval, wider than long, anterior and posterior margins almost straight (Figs. 12, 14). Scutum with two pairs of scutalae (AL and PL), both fully barbed. AL tapering, with swelling near bases (Figs. 12, 14, 17) and longer than PL (2.15–2.31 times). PL apices blunt (Figs. 12, 14). Scutum with two pairs of trichobothria (ASE and PSE), ASE with few long setules, inserted in sclerotized and oblique socket (Figs. 12, 14), PSE with minute barbs in distal half and longer than ASE (2.09–2.26 times). Venter (Fig. 13). All ventral setae including coxalae barbed, 1a and 1b with pointed apices, 2b with distally bifid, 3a, 3b and 20 setae (18–20 in paratypes) with blunted ends behind coxae III. Coxala 1b longer than other coxal setae, 3b slightly longer than 2b (Table 3). Gnathosoma with one pair of nude galealae (cs), one pair of nude anterior hypostomalae (as) and one pair of nude posterior hypostomalae (bs) (Fig. 15), hypostomal lip fimbriated like a stamen. Dorsal of palpfemur and palpgenu each with one barbed and pointed setae, PaScGed thicker than PaScFed (Figs. 15, 17). Palptibia with one nude seta on ventral surface, one barbed seta and one nude seta on dorsum, odontus bifid (Fig. 15). Palptarsus with eight setae including six nude setae, one solenidion (ω) and one eupathidium (ζ) (Figs. 15, 16), fPp = 0-B-B-BNN 2 -6Nωζ (Figs. 15, 16). Palpal supracoxal seta (elcp) peg like. Leg (Figs. 18–23) with seven segments (femora divided). IP = 2864–2869 (Holotype and two paratypes). All normal setae on legs barbed and pointed. Leg setal formula: Leg I: Cx—1n; Tr—1n; BFe—3n; TFe—5n; Ge—1σ, 1κ, 8n; Ti—2φ, 1κ, 1Cp, 14n; Ta—1ω, 1ε, 2ζ, 1Cp, 25n. Leg II: Cx—1n; Tr—1n; BFe—3n; TFe—5n; Ge—1κ, 8n; Ti—2φ, 15n; Ta—1ω, 2ζ, 1Cp, 23n. Leg III: Cx—1n; Tr—1n; BFe—3n; TFe—5n; Ge—8n; Ti—1φ, 15n; Ta—1ζ, 24n. Etymology. The name of the new species is derived from the province where it was collected. Type material. Holotype, larva, unidentified treehoppers (Hemiptera: Membracidae), collector XIN-FENG ZHANG, 24 April 2009, Bawangling National Natural Reserve, Hainan Province, China. Paratypes: one larva, the same data as the holotype; one larva, ex unidentified delphacid planthoppers (Hemiptera: Delphacidae), collector XIN-FENG ZHANG, 22 April 2009, Datian National Natural Reserve, Hainan Province, China. The holotype and all paratypes are deposited in Institute of Entomology, Guizhou University, China (GUGC) (Zhang 2018). Remarks. Representatives of the subgenus Zaracarus are arranged into five species groups (Table 2). The subdivision might be artificial but is adopted here because of relatively reasonable morphological basis and convenience for classification at the species level. Erythraeus (Zaracarus) hainanensis sp. nov. belongs to the species groups having AL with swelling or slightly swelling near bases and fn Bfe 3-3-3. This group includes 11 species: E. (Z.) lancifer Southcott, 1995; E. (Z.) fabiolae Haitlinger, 1997; E. (Z.) rajabii Saboori, 2000; E. (Z.) longipedus Saboori & Nowzari, 2001; E. (Z.) sibuljinicus Haitlinger, 2004; E. (Z.) aydinicus Saboori, Cakmak & Nouri-Gonbalani, 2004; E. (Z.) jinkaensis Haitlinger, 2006; E. (Z.) passidonicus Haitlinger, 2006; E. (Z.) ruizporterae Mayoral & Barranco, 2008; E. (Z.) perpusillus Kamran, Afzal, Raza, Irfanullah, Bashir & Ahmad, 2009; E. (Z.) adrianicus Haitlinger, 2012. Erythraeus (Zaracarus) hainanensis sp. nov. differs from E. (Z.) lancifer in having two solenidia on Ti II (vs. one solenidion), two pairs of hypostomal setae (vs. one pair), the greater number of palptarsal setae including solenidion and eupathidium (8 vs. 7), the greater number of fD (40–44 vs. 32) and fV (18–20 vs. 12); coxalae I entirely with minute setules (vs. only distal half with minute setules). E. (Z.) hainanensis sp. nov. differs from E. (Z.) fabiolae in having the greater number of palptarsus setae including solenidion and eupathidium (8 vs. 7), and NDV (60–62 vs. 38). E. (Z.) hainanensis sp. nov. differs from E. (Z.) rajabii as follows: on Ta I and Ta, eupathidium has one companion seta (vs. companion setae absent on both segments); Ta I and Ta II each with two eupathidia, respectively (vs. each with one eupathidium). ...Continued on the next page ...Continued on the next page ...Continued on the next page * All lengths excluding coxa Metric data for E. (E.) phalangoides, E. (E.) tinnae, E. (E.) chinensis, E. (E.) picaforticus, E. (E.) kacperi, E. (E.) yangshuonicus, E. (E.) etnaensis, E. (E.) walii, E. (E.) serbicus and E. (E.) aphidivorous were given by Haitlinger (1997, 2002, 2004b, 2006c, 2011b), Kamran et al. (2011), Southcott (1961), Stålstedt et al. (2016), Šundić et al. (2015a, 2015b), Zheng (2002) E. (Z.) hainanensis sp. nov. differs from E. (Z.) longipedus as follows: on Ta I and Ta, eupathidium has one companion seta (vs. companion setae absent on both segments); the greater number of fD (40–44 vs. 30) and fV (18–20 vs. 8). E. (Z.) hainanensis sp. nov. differs from E. (Z.) sibuljinicus as follows: shape of scutum is a transverse oval (vs. trapezoid); eyes are off platelet (vs. on platelet); the greater number of fD (40–44 vs. 24) and fV (18–20 vs. 13). E. (Z.) hainanensis sp. nov. differs from E. (Z.) aydinicus as follows: the greater number of palptarsus setae including solenidion and eupathidium (8 vs. 7), fD (40–44 vs. 31) and NDV (60–62 vs. 43). E. (Z.) hainanensis sp. nov. differs from E. (Z.) jinkaensis as follows: Ta I, Ta II and Ti I has companion seta (vs. setae absent on all these segments), Ta I has famulus (vs. famulus absent); the greater number of eupathidia on Ta I (2 vs. 1), Ta II (2 vs. 1), Ta III (1 vs. 0). E. (Z.) hainanensis sp. nov. differs from E. (Z.) passidonicus by the presence of solenidion on Ge I (vs. absent), the greater number of palptarsus setae including solenidion and eupathidium (8 vs. 7). E. (Z.) hainanensis sp. nov. differs from E. (Z.) ruizporterae in having the anterior margin of scutum almost straight (vs slightly concave); Ta I and Ta II with companion setae (vs. absent).. E. (Z.) hainanensis sp. nov. differs from E. (Z.) perpusillus in having two pairs of hypostomal setae (vs. one pair). ...Continued on the next page ...Continued on the next page ...Continued on the next page Metric data for E. (Z.) lancifer, E. (Z.) fabiolae, E. (Z.) rajabii, E. (Z.) longipedus, E. (Z.) sibuljinicus, E. (Z.) aydinicus, E. (Z.) jinkaensis, E. (Z.) passidonicus, E. (Z.) ruizporterae, E. (Z.) perpusillus, E. (Z.) adrianicus were given by Haitlinger (1997, 2004a, 2006a, 2006b, 2012b), Kamran & Alatawi (2014), Kamran et al. (2009), Mayoral & Barranco (2008), Saboori (2000), Saboori & Nowzari (2001), Saboori et al. (2004), Southcott (1995). E. (Z.) hainanensis sp. nov. differs from E. (Z.) adrianicus by more fD (40–44 vs. 28); eyes not on platelet (vs. on platelet). Differences in measurements between the new species and all species compared above are in Table 5. In the key to species of the subgenus Erythraeus s. str. of the world presented by Šundić et al. (2015b) (for species known from larvae), six species, E. (E.) albanicus Haitlinger, 2012, E. (E.) chrysoperlae Khanjani, Mirmoayedi, Fayaz & Sharifian, 2012, E. (E.) layyahensis Kamran, Afzal & Bashir, 2013, E. (E.) nipponicus Kawashima, 1961, E. (E.) populi Khanjani, Mirmoayedi, Fayaz & Sharifian, 2012 and E. (E.) uhadi Kamran & Alatawi, 2014, were missed. In this paper, we have added all these species, except E. (E.) nipponicus, because we were not able to find the original description. One more species described several years ago, E. (E.) pistacicus Haitlinger, Mehrnejad & Šundić, 2016, is also added to the updated identification key., Published as part of Xu, Si-Yuan, Yi, Tian-Ci, Guo, Jian-Jun & Jin, Dao-Chao, 2019, The genus Erythraeus (Acari: Erythraeidae) from China with descriptions of two new species and a key to larval species of the genus worldwide, pp. 54-82 in Zootaxa 4647 (1) on pages 54-82, DOI: 10.11646/zootaxa.4647.1.7, http://zenodo.org/record/3353363, {"references":["Zhang, Z. - Q. (2018) Repositories for mite and tick specimens: acronyms and their nomenclature. Systematic & Applied Acarology, 23, 2432 - 2446. https: // doi. org / 10.11158 / saa. 23.12.12","Southcott, R. V. (1995) A new larval erythraeine mite (Acarina: Erythraeidae) from Spain. Acarologia, 36 (3), 223 - 228.","Haitlinger, R. (1997) New larval mites (Acari, Prostigmata: Erythraeidae, Trombidiidae) from Canary Islands. Zoologica Baetica, 8, 123 - 132.","Saboori A. (2000) Two new larval erythraeine mites (Acari: Erythraeidae) from Iran. Systematic & Applied Acarology, 5 (1), 125 - 130. https: // doi. org / 10.11158 / saa. 5.1.15","Saboori, A. & Nowzari, J. (2001) A new larval erythraeine mite (Acari: Erythraeidae) from Iran. International Journal of Acarology, 27 (3), 229 - 233. https: // doi. org / 10.1080 / 01647950108684259","Saboori, A., Cakmak, I. & Nouri-Gonbalani, G. (2004) A new species of larval Erythraeus (Zaracarus) (Acari: Erythraeidae) from Turkey. International Journal of Acarology, 30 (2), 131 - 136. https: // doi. org / 10.1080 / 01647950408684381","Mayoral, J. G. & Barranco, P. (2008) A new species of the genus Erythraeus Latreille, 1806 (Acari: Erythraeidae) from the Gypsum Karst of Sorbas in the south of Spain. Revista Iberica de Aracnologia, 16, 113 - 117.","Kamran, M., Afzal, M., Raza, A. M., Irfanullah, M., Bashir M. H. & Ahmad, S. (2009) Discovery of a new larval erythraeid mite (Acari: Erythraeidae: Erythraeinae) From Punjab, Pakistan. Pakistan Journal of Zoology, 41 (5), 357 - 361.","Haitlinger, R. (2002) Erythraeidae and Trombidiidae (Allothrombiinae) (Acari: Prostigmata) from Mallorca (Balearic Islands), with description of two new species. Bolleti de la Societat d'Historia Natural de les Balears, 45, 191 - 197.","Haitlinger, R. (2004 b) New records of mites (Acari: Prostigmata: Erythraeidae) from Cambodia and Myanmar, with a description of Erythraeus (Erythraeus) kacperi sp. nov. Systematic & Applied Acarology, 9 (1), 157 - 161. https: // doi. org / 10.11158 / saa. 9.1.21","Haitlinger, R. (2006 c) Eight new species and new records of mites (Acari: Prostigmata: Erythraeidae, Trombidiidae, Johnstonianidae) from China including Macao. Systematic & Applied Acarology, 11 (1), 83 - 105. https: // doi. org / 10.11158 / saa. 11.1.11","Haitlinger, R. (2011 b) Two new species of larval Erythraeus (Erythraeus) (Acari: Prostigmata: Erythraeidae) from Sicily, Italy. Systematic & Applied Acarology, 16 (3), 291 - 297. https: // doi. org / 10.11158 / saa. 16.3.15","Kamran, M., Afzal, M., Raza, A. M., Bashir, M. H. & Ahmad, S. (2011) Discovery of subgenus Erythraeus (Acari: Erythraeidae: Erythraeus) from Punjab, Pakistan. Pakistan Journal of Zoology, 43 (6), 1055 - 1059.","Southcott, R. V. (1961) Studies on the systematics and biology of the Erythraeoidea (Acarina) with a critical revision of the genera and subfamilies. Australian Journal of Zoology, 9 (3), 367 - 610. https: // doi. org / 10.1071 / ZO 9610367","Sundic, M., Haitlinger, R., Michaud, J. P. & Colares, F. (2015 a) A new species of Erythraeus (Erythraeus) (Acari: Prostigmata: Erythraeidae) from central Kansas. Acarologia, 55 (1), 41 - 48. https: // doi. org / 10.1051 / acarologia / 20152152","Zheng, B. - Y. (2002) A new species of the Genus Bochartia Oudemans, 1910 (Acari: Erythraeidae) from China. Journal of Central South Forestry University, 22 (1), 90 - 92.","Haitlinger, R. (2004 a) New records of mites (Acari: Prostigmata: Erythraeidae, Trombidiidae, Eutrombidiidae) from Croatia, with descriptions of three new species. Natura Croatica, 13 (2), 143 - 160.","Haitlinger, R. (2006 a) New records of mites (Acari: Prostigmata: Erythraeidae, Trombidiidae) from Samos, Greece, with description of six new species. Systematic & Applied Acarology, 11 (1), 107 - 123. https: // doi. org / 10.11158 / saa. 11.1.12","Haitlinger, R. (2006 b) Four new species of Erythraeidae (Acari: Prostigmata) and the first record of Charletonia braunsi (Oudemans, 1910) and C. brunni (Oudemans, 1910) from Ethiopia. Revista Iberica de Aracnologia, 12, 79 - 90.","Haitlinger, R. (2012 b) Two new species of Erythraeus (Zaracarus) Latreille, 1806 (Acari: Prostigmata: Erythraeidae) from Sicily. Biologia, 67 (1), 137 - 142. https: // doi. org / 10.2478 / s 11756 - 011 - 0146 - 7","Kamran, M. & Alatawi, F. J. (2014) Erythraeid mites (Prostigmata, Erythraeidae) from Saudi Arabia, description of three new species and a new record. ZooKeys, 445, 77 - 95. https: // doi. org / 10.3897 / zookeys. 445.7861","Sundic, M., Haitlinger, R., Petanovic, R., Jovicic, I. & Hakimitabar, M. (2015 b) A new species of Erythraeus (Erythraeus) and new records of mites (Acari: Erythraeidae) from Serbia. Biologia, 70 (6), 788 - 796. https: // doi. org / 10.1515 / biolog- 2015 - 0093","Khanjani, M., Mirmoayedi, A., Fayaz, B. A. & Sharifian, T. (2012) Two new larval species of the genus Erythraeus (Erythraeus) (Acari: Erythraeidae) from Iran. Zootaxa, 3479, 52 - 68. https: // doi. org / 10.11646 / zootaxa. 3479.1.3","Kamran, M., Afzal, M. & Bashir, M. H. (2013) A new species of genus Erythraeus (Acari: Erythraeidae) from Punjab, Pakistan. Pakistan Journal of Zoology, 45 (1), 35 - 39.","Haitlinger, R., Mehrnejad, R. & Sundic, M. (2016) Erythraeus (Erythraeus) pistacicus sp. n. (Trombidiformes: Erythraeidae) from southern Iran, and notes on other Erythraeus spp. Biologia, 71 (7), 804 - 808. https: // doi. org / 10.1515 / biolog- 2016 - 0092"]}

Erythraeus (Zaracarus) hainanensis sp. nov. (Figs. 12–23) Diagnosis (larva). AL with swelling near bases; fnBFe = 3-3-3; coxala 2b with bifid ends. Ta I 141–158; Ti I 232– 237; Ta III 159–163; Ti III 336–358; fD 40–44. Description (n = 3; holotype, two paratypes). Dorsum. Idiosoma almost oval, with 42 (fD = 40–44 in paratypes) barbed and blunted setae behind scutum. Two pairs of eyes without platelets posterolateral to scutum. Six normal setae between two pairs of eyes. Scutum as transverse oval, wider than long, anterior and posterior margins almost straight (Figs. 12, 14). Scutum with two pairs of scutalae (AL and PL), both fully barbed. AL tapering, with swelling near bases (Figs. 12, 14, 17) and longer than PL (2.15–2.31 times). PL apices blunt (Figs. 12, 14). Scutum with two pairs of trichobothria (ASE and PSE), ASE with few long setules, inserted in sclerotized and oblique socket (Figs. 12, 14), PSE with minute barbs in distal half and longer than ASE (2.09–2.26 times). Venter (Fig. 13). All ventral setae including coxalae barbed, 1a and 1b with pointed apices, 2b with distally bifid, 3a, 3b and 20 setae (18–20 in paratypes) with blunted ends behind coxae III. Coxala 1b longer than other coxal setae, 3b slightly longer than 2b (Table 3). Gnathosoma with one pair of nude galealae (cs), one pair of nude anterior hypostomalae (as) and one pair of nude posterior hypostomalae (bs) (Fig. 15), hypostomal lip fimbriated like a stamen. Dorsal of palpfemur and palpgenu each with one barbed and pointed setae, PaScGed thicker than PaScFed (Figs. 15, 17). Palptibia with one nude seta on ventral surface, one barbed seta and one nude seta on dorsum, odontus bifid (Fig. 15). Palptarsus with eight setae including six nude setae, one solenidion (ω) and one eupathidium (ζ) (Figs. 15, 16), fPp = 0-B-B-BNN 2 -6Nωζ (Figs. 15, 16). Palpal supracoxal seta (elcp) peg like. Leg (Figs. 18–23) with seven segments (femora divided). IP = 2864–2869 (Holotype and two paratypes). All normal setae on legs barbed and pointed. Leg setal formula: Leg I: Cx—1n; Tr—1n; BFe—3n; TFe—5n; Ge—1σ, 1κ, 8n; Ti—2φ, 1κ, 1Cp, 14n; Ta—1ω, 1ε, 2ζ, 1Cp, 25n. Leg II: Cx—1n; Tr—1n; BFe—3n; TFe—5n; Ge—1κ, 8n; Ti—2φ, 15n; Ta—1ω, 2ζ, 1Cp, 23n. Leg III: Cx—1n; Tr—1n; BFe—3n; TFe—5n; Ge—8n; Ti—1φ, 15n; Ta—1ζ, 24n. Etymology. The name of the new species is derived from the province where it was collected. Type material. Holotype, larva, unidentified treehoppers (Hemiptera: Membracidae), collector XIN-FENG ZHANG, 24 April 2009, Bawangling National Natural Reserve, Hainan Province, China. Paratypes: one larva, the same data as the holotype; one larva, ex unidentified delphacid planthoppers (Hemiptera: Delphacidae), collector XIN-FENG ZHANG, 22 April 2009, Datian National Natural Reserve, Hainan Province, China. The holotype and all paratypes are deposited in Institute of Entomology, Guizhou University, China (GUGC) (Zhang 2018). Remarks. Representatives of the subgenus Zaracarus are arranged into five species groups (Table 2). The subdivision might be artificial but is adopted here because of relatively reasonable morphological basis and convenience for classification at the species level. Erythraeus (Zaracarus) hainanensis sp. nov. belongs to the species groups having AL with swelling or slightly swelling near bases and fn Bfe 3-3-3. This group includes 11 species: E. (Z.) lancifer Southcott, 1995; E. (Z.) fabiolae Haitlinger, 1997; E. (Z.) rajabii Saboori, 2000; E. (Z.) longipedus Saboori & Nowzari, 2001; E. (Z.) sibuljinicus Haitlinger, 2004; E. (Z.) aydinicus Saboori, Cakmak & Nouri-Gonbalani, 2004; E. (Z.) jinkaensis Haitlinger, 2006; E. (Z.) passidonicus Haitlinger, 2006; E. (Z.) ruizporterae Mayoral & Barranco, 2008; E. (Z.) perpusillus Kamran, Afzal, Raza, Irfanullah, Bashir & Ahmad, 2009; E. (Z.) adrianicus Haitlinger, 2012. Erythraeus (Zaracarus) hainanensis sp. nov. differs from E. (Z.) lancifer in having two solenidia on Ti II (vs. one solenidion), two pairs of hypostomal setae (vs. one pair), the greater number of palptarsal setae including solenidion and eupathidium (8 vs. 7), the greater number of fD (40–44 vs. 32) and fV (18–20 vs. 12); coxalae I entirely with minute setules (vs. only distal half with minute setules). E. (Z.) hainanensis sp. nov. differs from E. (Z.) fabiolae in having the greater number of palptarsus setae including solenidion and eupathidium (8 vs. 7), and NDV (60–62 vs. 38). E. (Z.) hainanensis sp. nov. differs from E. (Z.) rajabii as follows: on Ta I and Ta, eupathidium has one companion seta (vs. companion setae absent on both segments); Ta I and Ta II each with two eupathidia, respectively (vs. each with one eupathidium). ...Continued on the next page ...Continued on the next page ...Continued on the next page * All lengths excluding coxa Metric data for E. (E.) phalangoides, E. (E.) tinnae, E. (E.) chinensis, E. (E.) picaforticus, E. (E.) kacperi, E. (E.) yangshuonicus, E. (E.) etnaensis, E. (E.) walii, E. (E.) serbicus and E. (E.) aphidivorous were given by Haitlinger (1997, 2002, 2004b, 2006c, 2011b), Kamran et al. (2011), Southcott (1961), Stålstedt et al. (2016), Šundić et al. (2015a, 2015b), Zheng (2002) E. (Z.) hainanensis sp. nov. differs from E. (Z.) longipedus as follows: on Ta I and Ta, eupathidium has one companion seta (vs. companion setae absent on both segments); the greater number of fD (40–44 vs. 30) and fV (18–20 vs. 8). E. (Z.) hainanensis sp. nov. differs from E. (Z.) sibuljinicus as follows: shape of scutum is a transverse oval (vs. trapezoid); eyes are off platelet (vs. on platelet); the greater number of fD (40–44 vs. 24) and fV (18–20 vs. 13). E. (Z.) hainanensis sp. nov. differs from E. (Z.) aydinicus as follows: the greater number of palptarsus setae including solenidion and eupathidium (8 vs. 7), fD (40–44 vs. 31) and NDV (60–62 vs. 43). E. (Z.) hainanensis sp. nov. differs from E. (Z.) jinkaensis as follows: Ta I, Ta II and Ti I has companion seta (vs. setae absent on all these segments), Ta I has famulus (vs. famulus absent); the greater number of eupathidia on Ta I (2 vs. 1), Ta II (2 vs. 1), Ta III (1 vs. 0). E. (Z.) hainanensis sp. nov. differs from E. (Z.) passidonicus by the presence of solenidion on Ge I (vs. absent), the greater number of palptarsus setae including solenidion and eupathidium (8 vs. 7). E. (Z.) hainanensis sp. nov. differs from E. (Z.) ruizporterae in having the anterior margin of scutum almost straight (vs slightly concave); Ta I and Ta II with companion setae (vs. absent).. E. (Z.) hainanensis sp. nov. differs from E. (Z.) perpusillus in having two pairs of hypostomal setae (vs. one pair). ...Continued on the next page ...Continued on the next page ...Continued on the next page Metric data for E. (Z.) lancifer, E. (Z.) fabiolae, E. (Z.) rajabii, E. (Z.) longipedus, E. (Z.) sibuljinicus, E. (Z.) aydinicus, E. (Z.) jinkaensis, E. (Z.) passidonicus, E. (Z.) ruizporterae, E. (Z.) perpusillus, E. (Z.) adrianicus were given by Haitlinger (1997, 2004a, 2006a, 2006b, 2012b), Kamran & Alatawi (2014), Kamran et al. (2009), Mayoral & Barranco (2008), Saboori (2000), Saboori & Nowzari (2001), Saboori et al. (2004), Southcott (1995). E. (Z.) hainanensis sp. nov. differs from E. (Z.) adrianicus by more fD (40–44 vs. 28); eyes not on platelet (vs. on platelet). Differences in measurements between the new species and all species compared above are in Table 5. In the key to species of the subgenus Erythraeus s. str. of the world presented by Šundić et al. (2015b) (for species known from larvae), six species, E. (E.) albanicus Haitlinger, 2012, E. (E.) chrysoperlae Khanjani, Mirmoayedi, Fayaz & Sharifian, 2012, E. (E.) layyahensis Kamran, Afzal & Bashir, 2013, E. (E.) nipponicus Kawashima, 1961, E. (E.) populi Khanjani, Mirmoayedi, Fayaz & Sharifian, 2012 and E. (E.) uhadi Kamran & Alatawi, 2014, were missed. In this paper, we have added all these species, except E. (E.) nipponicus, because we were not able to find the original description. One more species described several years ago, E. (E.) pistacicus Haitlinger, Mehrnejad & Šundić, 2016, is also added to the updated identification key.

Caeculisoma Berlese, 1888 Type species: Caeculisoma tuberculatum Berlese, 1888 Amended diagnosis. Larva: One eye on each side. Dorsal scutum generally rounded, but anterior margin maybe convex, concave, straight, or sinuous. ASE usually between ML and PL scutulae, sometimes level with PL (C. penlineatus sp. nov.). PL at mid-point or in posterior half of scutum, PSE at posterior edge of scutum. Three pairs of normal setae (scutalae) with fine barbs on scutum. Ventral setae: paired sternalae I between coxae I; paired sternalae II between coxae II; one or two pairs of sternalae III between coxae III. Pedocoxalae 1, 2, 2. Pedotrochanteralae 1, 1, 1. Pedal tarsus with lateral claws dissimilar. Claw-like empodium falciform, overreaching the lateral claws.Anterior claw strong, falciform, simple or with few ciliations. Posterior claw pulvilliform with strong terminal hook. Palpal tibial claw bifurcate. Remarks. The diagnosis for larvae of Caeculisoma is based on Southcott (1972). The most important difference is the location of anterior sensilla (ASE) in the genus, which Southcott (1972) used to separate Callidosoma (ASE anterior to ML) and Caeculisoma (ASE posterior to ML). Southcott���s diagnosis for Caeculisoma is generally applicable to C. penlineatus sp. nov., but ASE is so far posterior that it is level with ML, and thus the genus diagnosis is modified accordingly. Other differences and similarities among Caeculisoma and related genera with three pairs of scutalae in larval Callidosomatinae are also compared in Table 1. The position of the ML scutulae may cause us to reclassify the monotypic genus Iguatonia Haitlinger, 2004 as a species of Caeculisoma. However, in this genus the position of the scutal setae are unusual, with all three pairs of scutulae in the anterior half of the scutum and ASE very close to PSE. Nevertheless, a broader study of the Callidosomatinae is required to assess generic boundaries as, based on our study, the position of scutal setae may be graded so finely between species that genera are no longer easily defined., Published as part of Xu, Si-Yuan, Yi, Tian-Ci, Guo, Jian-Jun & Jin, Dao-Chao, 2019, A new species of larval Caeculisoma (Acari: Erythraeidae: Callidosomatinae) ectoparasitic on insects from China and a revised generic diagnosis, pp. 511-524 in Zootaxa 4604 (3) on page 512, DOI: 10.11646/zootaxa.4604.3.7, http://zenodo.org/record/2852713, {"references":["Southcott, R. V. (1972) Revision of the larvae of the tribe Callidosomatini (Acarina: Erythraeidae) with observations on postlarval instars. Australian Journal of Zoology, 20 (13), 1 ‾ 84. https: // dx. doi. org / 10.1071 / AJZS 013","Haitlinger R. (2004) Charletonia domawiti n. sp., Caeculisoma nestori n. sp. and Iguatonia barbillae n. gen. and n. sp. from Brazil (Acari: Prostigmata: Erythraeidae). Genus, 15 (3), 435 ‾ 444."]}

Genus Bryobia Koch, 1836 Bryobia pritchardi Rimando, 1962: 9, Figs 3–4; Ehara 1969; 83, Figs 1–3; Wang 1981: 33, Fig. 19; Ma et al. 1984:103, Fig.8 (16); Tseng 1990: 15, Figs 28 –32., Published as part of Li, Juan, Yi, Tian-Ci, Guo, Jian-Jun & Research, Dao-Chao Jin, 2019, Redescription of Bryobia pritchardi Rimando, 1962 (Acari: Tetranychidae), with an ontogeny of chaetotaxy, pp. 73-110 in Acarologia 1962 (1) on page 74, DOI: 10.24349/acarologia/20194312, http://zenodo.org/record/4487695, {"references":["Rimando L. C. 1962. The tetranychoid mites of the Philippines. University of the Philippines College of Agriculture Technical Bulletin, 11: 1 - 52.","Ehara S. 1969. The tetranychoid mites of Taiwan (Acarina: Prostigmata). The Journal of the Faculty of Education, Tottori University, Natural Science, 20: 79 - 103.","Wang H. F. 1981. Acariformes: Tetranychoidea. Economic insect fauna of China. Fasc. 23. Science Press. Beijing, China. 150 pp.","Ma E. P., Yuan Y. L, Qian Y. H. 1984. Spider mites. In: Jiangxi University (ed.). Agricultural Mites","Tseng Y. H. 1990. A monograph of the mite family Tetranychidae (Acarina: Trombidiformes) from Taiwan. Taiwan Museum Special Publication Series, 9, 1 - 224."]}

Bryobia pritchardi Rimando, 1962 (Figs. 1–28) Material examined Twenty-five females (slides NO. 1601090301–1601090325), seven males (1601090326– 1601090332), one deutonymph (1601090333), eight protonymphs (1601090334–1601090341) and ten larvae (1601090342–1601090352), collected from Drymaria cordata in Hainan Xinlong Tropical Botanical Garden, Hainan province, P. R. China, 106°16′39″E, 19°54′12″N, elevation 71 m, on 9 Jan. 2016, by Juan Li. The specimens studied are deposited in Institute of Entomology, Guizhou University, P. R. China (GUGC). Holotype female, ex. Paederia foetida, from Lipa City, Batangas, Philippines, coll. L.C. Rimando, currently on loan to the Smithsonian in Washington D. C. Diagnosis With the generic characters and: Female — Body subovate. Prodorsal setae each on four well-developed anterior lobes, of which inner row shares more or less triangular broad base and well separated distally, with obvious incision; dorsal transverse line reaching to the tops of the outer lobes and crossing or reaching up to the incision of inner lobes. The line joining tips of second pair of propodosomal seta (v 2) located on the outer lobes generally passes slightly under the bases of the first pair (v 1). Dorsal setae spatulate to orbicular, rough and serrate. Stylophore longer than wide. Peritreme anastomosed distally in hook-liked enlargement with a shallow incision. Ventral setae smooth and filiform with the exception of lanceolate and serrate 1c and 2b; sacculus elongate, constricted medially and bulbous distally. Leg segment setal formula as follows: trochanters 1–1–1–1; femora 16~17–10–5–5; genua 8–5–6–6; tibiae 15 (1 φ)–9–9–9; tarsi 19 (5 ω +2dup)–17 (0 ω +1dup)–15 (0 ω)–14 (1 ω). Male — Prodorsal setae on weakly developed anterior lobes: inner lobes with large fused base, incision between median lobes wide and shallow; outer lobes on weak projectons. Leg segment setal formula as follows: trochanters 1–1–1–1; femora 16~17–10–5–5; genua 8–5–6– 6; tibiae 15 (1 φ)–9–9–9; tarsi 18(9 ω +2dup)–16(0 ω +1dup)–14 (1 ω)–14 (1 ω). Empodia I–IV same as that of females; shaft of aedeagus abruptly constricted towards its distal part, ending in needle-like round tip., Published as part of Li, Juan, Yi, Tian-Ci, Guo, Jian-Jun & Research, Dao-Chao Jin, 2019, Redescription of Bryobia pritchardi Rimando, 1962 (Acari: Tetranychidae), with an ontogeny of chaetotaxy, pp. 73-110 in Acarologia 1962 (1) on pages 74-75, DOI: 10.24349/acarologia/20194312, http://zenodo.org/record/4487695, {"references":["Rimando L. C. 1962. The tetranychoid mites of the Philippines. University of the Philippines College of Agriculture Technical Bulletin, 11: 1 - 52."]}

Eotetranychus kankitus Ehara, 1955 (Figs. 1–18) Eotetranychus kankitus Ehara, 1955: 178, figs. 1-8., Published as part of Li, Juan, Yi, Tian-Ci, Guo, Jian-Jun & Jin, Dao-Chao, 2018, Ontogenetic development and redescription of Eotetranychus kankitus (Acariformes Tetranychidae), pp. 132-157 in Zootaxa 4540 (1) on page 133, DOI: 10.11646/zootaxa.4540.1.10, http://zenodo.org/record/2616038, {"references":["Ehara, S. (1955) On two spider mites parasitic on Japanese citrus. Zoological Society of Japan Zoological Institute, Tokyo University, 28 (3), 178 - 182."]}

Li, Juan, Yi, Tian-Ci, Guo, Jian-Jun, Jin, Dao-Chao (2018): Ontogenetic development and redescription of Eotetranychus kankitus (Acariformes Tetranychidae). Zootaxa 4540 (1): 132-157, DOI: https://doi.org/10.11646/zootaxa.4540.1.10

Oligonychus pratensis (Banks, 1912) (Figs. 1–21) Diagnosis. Female: Dorsocentral setae much longer than distance to setae in next setal row. Dorsal striae almost longitudinal on propodosoma; medial striae on hysterosoma transverse, except for longitudinal striae between setae f 1– f 1, and sometimes between setae e 1– e 1. Genital flap with transverse striae; pregenital striae longitudinal. Peritreme straight, dilated at distal end, bulb-shaped. Palp spinneret suζ sub-conical, 1.5–2 times as long as wide. Leg segment setal formula as follows: coxae 2–2–1–1; trochanters 1–1–1–1; femora 10–6–4–4; genua 5–5–4–4; tibiae 9 (1 φ)–7–6–7; tarsi 13 (1 ω +2dup)–13 (1 ω +1dup)–8 (1 ω)–9 (1 ω). Tarsus I with four tactile setae (l ′ 1, l″ 1, v ′ 2, v″ 1) proximal to the duplex setae, and one solenidion (ω″ 1) on a line with duplex setae. Tibia I with one solenidion (φ) and nine tactile setae; tarsus II with one solenidion (ω″ 1) and three tactile setae (l ′ 1, v ′ 2, v″ 1) proximal to duplex setae; tibia II with seven tactile setae, without solenidion; empodia with two sets of three proximoventral hairs. Male: Aedeagus bent dorsad; head with blunt anterior projection, posterior projection prolonged and ending in pointed tip; dorsal margin convex; angle of head at an acute angle to shaft. Leg segment setal formula as follows: coxae 2–2–1–1; trochanters 1–1–1–1; femora 10–6–4–4; genua 5–5–4–4; tibiae 9 (4 φ)–7–6–7; tarsi 13 (3 ω +2dup)–13 (1 ω +1dup)–9 (1 ω)–9 (1 ω); empodia I without proximoventral hairs (different from female); empodia II–IV with two sets of three proximoventral hairs (same as female). Material examined. Six females (slides NO. 1608170201–1608170206), four males (1608170207– 1608170210), five deutonymphs (1608170211–1608170215), six protonymphs (1608170216–1608170221) and five larvae (1608170222–1608170226) were collected from Imperata (Poaceae) at Doupeng Mountain, Badagongshan National Nature Reserve: 109°45′73″E, 29°40′40″N, elevation 1643 m, Zhangjiajie City, Hunan Province, China, on 17 August 2016, by Li Juan and Tian-Ci Yi. Description. Female (n=6) (Figs. 1–3; 7A–B; 18; 19A–B; 20A–B) Dorsum (Fig. 1; Fig. 18B). Length of idiosoma including gnathosoma 498–570, excluding gnathosoma 327– 402. Color in life saffron-yellow. Dorsal striae almost longitudinal on propodosoma; hysterosomal striae longitudinal laterally, transverse medially except for longitudinal striae between setae e 1– e 1 and f 1– f 1. Striae between e 1– e 1 and f 1– f 1 roughly form a diamond shape (Fig. 1; Fig. 18B). Strial lobes small and irregular (Fig. 19A). Dorsal setae not set on tubercles, slender, tapering, pubescent (expect for setae h 3 smooth), longer than intervals between their bases. Setae v 2 72 –81, sc 1 110–120, sc 2 75–91. Distances between setal bases: v 2– v 2 66 –82, sc 1– sc 1 72–96. Hysterosoma with 11 pairs of setae (c 1-3, d 1-2, e 1-2, f 1-2, h 2-3). Setae h 3 slender and smooth (Fig. 2). Measurements of hysterosomal setae: c 1 99–113, c 2 97–108, c 3 95–100, d 1 99–107, d 2 99–109, e 1 95–105, e 2 100–109, f 1 89–100, f 2 75–85, h 3 40–45, h 2 33–37. Distances between setal bases: c 1– c 1 67–74, c 1– d 1 35–64, d 1– d 1 35–76, d 1– e 1 37–63, e 1– e 1 33–43, e 1– f 1 43–71, f 1– f 1 42–55, h 3– h 3 88–109, h 2– h 2 32–36. Venter (Fig. 2; Fig. 18A; Fig. 20A). Striae transverse between seta 1a to ag, with irregular and close lobes (Fig. 20A). Pregenital striae longitudinal (Fig. 2; Fig.18A). Setae 1a 41–46, 3a 44–53 and 4a 60–65; distances between setae 1a–1a 36–41, 3a–3a 66–74 and 4a–4a 58–68. g 1 33–40, g 2 27–38, anal setae (ps 1-2) subequal in length 17–23. Pregenital setae ag 51–66 nude and longer than genital setae (g 1, g 2) and anal setae (ps 1-2). Length of setae: 1b 51–59, 1c 63–69, 2b 60–68, 2c 79–92, 3b 56–70, 4b 56–70. The distance: ps 1– ps 1 24–46, ps 2– ps 2 21–43, g 1– g 1 24–31, g 2– g 2 84–112, ag–ag 62–70. Gnathosoma (Figs. 7A–B). Peritreme straight, dilated at distal end forming a small bulb (Fig. 7A). Subcapitular setae m smooth, long 41–47, slightly shorter than m–m 51–58. All tactile setae on palp smooth. Supracoxal setae e, long 2.5–3.4. Setae l ′ PGe 32–36 in length, about twothirds of palpfemoral setae d PFe 47–57. Palp tibial setae l ′ PTi long 9–14, d PTi, 31–35, l″ PTi 11 9–14. Palp tarsi with seven phaneres: terminal sensillum (suζ) sub-conical, longer than wide, long 5.6–6, 3.4–4.2 in width at base; two lateral eupathidia (ul ′ζ and ul″ζ) subequal in length 7–8; Solenidion ω 3–5, well developed, fusiform; and three tactile nude setae: a 7–8, b 7–10, c 10–11 Legs (Fig. 3; Fig. 20B). Tarsus I with four tactile setae proximal to proximal set of duplex setae, and one solenidion in line with duplex setae, tibia I with one solenidion and nine tactile setae; tarsus II with one solenidion and three tactile setae proximal to duplex setae; tibia II with seven tactile setae. Two pairs of duplex setae on tarsus I, proximal duplex solenidion ω ′ 69–72, distal solenidion ω″ 89–93, ω″ 1 33–50; tarsus II with one set of duplex setae, duplex solenidion ω″ 57–67, ω″ 1 36–42 in length; tarsus III with one proximal solenidion ω ′ 43–50; tarsus IV with one proximal solenidion ω ′ 47–50. One solenidion on tibia I, φ, 53–71. Empodia with two sets of three proximoventral hairs (Fig. 3E–F; Fig. 20B). All leg setae smooth (Fig. 3). Number of phaneres on legs I–IV (number of solenidia and eupathidia respectively shown in parentheses): Length of leg segments: trochanter I 39 –43, femur I 85 –91, genu I (43–48, tibia I 48 –54, tarsus I 84 –89; trochanter II 30–36, femur II 57 –67, genu II 37 –45, tibia II 37 –43, tarsus II 68 –77; trochanter III 32 –38, femur III 60 –70, genu III 32 –36, tibia III 4 2–47, tarsus III 66 –80; trochanter IV 2 9–39), femur IV 54 –81, genu IV 36 –46, tibia IV 51 –57, tarsus IV 79 –88. Male (n=4) (Figs. 4–6; 7C–E; 17F–G; 19C; 20C–D; 21) Dorsum (Fig. 4). Length of idiosoma including gnathosoma 377–400, excluding gnathosoma 264–294. Prodorsum with longitudinal striae. Medial hysterosoma transversely striated. Shape of dorsal setae as in female. Setae ps 1 often inserted dorsally to dorsolaterally (Fig. 17F–G), depending on mounting. Length of setae: v 2 49 –51, sc 1 79–85, sc 2 60–63, c 1 65–71, c 2 70–72, c 3 65–73, d 1 72–73, d 2 76–80, e 1 66–68, e 2 73–75, f 1 48–52, f 2 44–49, h 3 18–21, h 2 18–23. Distances between setal bases: v 2– v 2 48 –53, sc 1–s c 1 60–63, c 1– c 1 52–56, c 1– d 1 34–37, d 1– d 1 50–51, d 1– e 1 32–37, e 1– e 1 27–29, e 1– f 1 23–2), f 1– f 1 26–30, h 2– h 2 23–26, h 3– h 3 60–64. Venter (Fig. 5). Striae transverse. And the interval of striate in hysterosoma more broader than in propodosoma; all ventral setae smooth and thin: 1a 30–32, 1b 38–40, 1c 43–55, 2b 44–46, 2c 60–63, 3a 29–30, 3b 40–48, 4a 41–44, 4b 42–45, ag 44–54, g 1 15–17, g 2 15–16, ps 1 18–21, ps 2 15–17. Distances between setal bases: 1a–1a 25–27, 3a–3a 44–47, 4a–4a 34–41, g 1– g 1, 22–27, g 2– g 2 29–33, ps 2– ps 2 29–31, ps 2– ps 2 30–32, ag–ag 35–40. Gnathosoma (Fig. 7C). Subcapitular seta m 30–35, slightly shorter than distance m–m 38–39; supracoxal seta e 2–2. Setae d PFe stubby, shorter and thicker than in female, 8–9 in length and 2.8–3.2 in diameter at base. Palp tarsus with cone-shaped spinneret, suζ 5.2–5.6 subequal in female suζ 5.6–6 in length; and 2.8–3.2 in diameter at base; single solenidion, ω 4–4.3 long, two eupathidia (ul ′ζ and ul″ζ) subequal in length 5–6, three normal setae, b 5–7, a 5–7, c 6–7. Measurements of setae on palp: l ′ PGe 24–26, l ′ PTi 7–8, l″ PTi 16–17, d PTi 20–22. Legs (Fig. 6). Tarsus I with two solenidia and four tactile setae proximal to proximal set of duplex setae and one solenidion in line with duplex setae, tibia I with four solenidia and nine tactile setae; tarsus II with one solenidion and three tactile setae proximal to duplex setae; tibia II with seven tactile setae. Two pairs of duplex setae on tarsus I distal and adjacent, proximal duplex solenidion ω ′ 45–55, distal solenidion ω″ 60–63, ω″ 1 32–35; tarsus II with one set of duplex setae, duplex solenidion ω″ 47–49, ω″ 1 28–34; tarsus III with one proximal solenidion ω ′ 38–42; tarsus IV with one proximal solenidion ω ′ 39–41. Four solenidia on tibia I: φ 43–50, φ ′ 1 26– 30, φ″ 1 29–32, φ″ 2 31–33. Empodia I without proximoventral hairs (Fig. 6E; Fig. 20C); empodia II–IV with two sets of three proximoventral hairs (Fig. 6F; Fig. 20D). All leg setae smooth (Fig. 6). Number of phaneres on legs I–IV (the number of solenidia and eupathidia respectively shown in parentheses): Lengths of leg segments: trochanter I 36 –39, femur I 60 –67, genu I 31–35, tibia I 39 –42, tarsus I 56 –59; trochanter II 28–33, femur II 46 –50, genu II 29–34, tibia II 32 –46, tarsus II 48 –58; trochanter III 26–30, femur III 43 –48, genu III 25–30, tibia III 31–33, tarsus III 50 –53; trochanter IV 29–32, femur IV 54 –57, genu IV 35 –39, tibia IV 35 –39, tarsus IV 46 –55. Aedeagus (Figs. 7D–E; Fig. 19C; Fig. 21B). Aedeagus bent dorsad; head with blunt anterior projection, posterior projection prolonged and ending in pointed tip; dorsal margin convex; angle of head at an acute angle to shaft, dorsal surface of knob obtusely angulate and axis knob forms a slight angle with angle of shaft (Fig. 21B). Deutonymph (n=5) (Figs. 8–10; 17B) Dorsum (Fig. 8). Body length including gnathosoma 313–407, excluding gnathosoma 239–320. Striation similar to female except with transverse striae between setae e 1 -e 1. Striae around bases of setae f 1 with heliciform shape (Fig. 8). Prodorsal setae shape as in female. Length of setae: v 2 49 –57, sc 1 76–95 sc 2 52–67, c 1 61–80, c 2 65– 80, c 3 62–78, d 1 60–77, d 2 64–78, e 1 61–74, e 2 62–78, f 1 52–66, f 2 49–56, h 3 20–22, h 2 26–33. Distances between setal bases: v 2– v 2 51 –61, sc 1– sc 1 63–78, c 1– c 1 58–68, c 1– d 1 25–47, d 1– d 1 55–68, d 1– e 1 23–36, e 1– e 1 24–36, e 1– f 1 29– 38, f 1– f 1 20–28, h 3– h 3 54–75, h 2– h 2 25–28. Venter (Fig. 9). Striae mostly transverse, all ventral setae smooth and thin: 1a 25–36, 1b 29–47, 1c 44–50, 2b 34–54, 2c 50–64, 3a 26–35, 3b 37–47, ag 38–49, g 1 21–25, ps 1 12–15, ps 2 11–16. Distances between setal bases: 1a–1a 26–32, 3a–3a 48–58, 4a–4a 40–52, g 1– g 1 37–51, ag–ag 39–45, ps 1– ps 1 11–25, ps 2– ps 2 14–30. Gnathosoma (Fig. 17B). Subcapitular seta m smooth 32–37, shorter than distance m–m 31–47; supracoxal seta e 2.5 –3.3. Setae d PFe 31–44. Setae l ′ PGe long 23–32, d PTi 26–30, l ′ PTi 9–12, l″ PTi 16–22. Palp tarsus with coneshaped spinneret, length suζ 4.7–5.3. Solenidion ω fusiform, length 4.5–5.6, eupathidia (ul ′ζ and ul″ζ) subequal in length 5.6–7, three normal setae: a 5–7, b 5–7, c 6.8–9. Legs (Fig. 10). Two pairs of duplex setae of tarsus I: ω ′ 40–50, ω″ 62–75, one solenidion ω″ 1 in line with duplex setae, long 23–29; tarsi II: ω″ 35–46; tibiae I with one solenidia φ 39–41; tarsus III with one solenidion ω ′ 24–33. All leg setae smooth (Fig. 10). Number of phaneres on legs I–IV (the number of solenidia and eupathidia respectively show in parentheses): Lengths of leg segments: trochanter I 29–38, femur I 56 –65, genu I 22–35, tibia I 28–36, tarsus I 45 –62; trochanter II 28–31, femur II 41 –63, genu II 22–33, tibia II 23–32, tarsus II 42 –51; trochanter III 24–32, femur III 37 –46, genu III 23–27, tibia III 25–32, tarsus III 41 –52; trochanter IV 26–31, femur IV 42 –60, genu IV 21–30, tibia IV 24–36, tarsus IV 44 –56. Protonymph (n=6) (Figs. 11–13; 17A) Dorsum (Fig. 11). Body length including gnathosoma 258–341, excluding gnathosoma 197–275. Striae and shape of dorsal setae similar to deutonymph except setae h 2 smooth; setae h 3 and h 2 located ventrally. Length of setae: v 2 45 –56, sc 1 68–78, sc 2 46–54, c 1 52–65, c 2 53–65, c 3 49–61, d 1 51–64, d 2 58–65, e 1 46–57, e 2 50–62, f 1 43– 54, f 2 34–47, h 3 21–25, h 2 16–26. Distances between setal bases: v 2 –v 2 51 –56, sc 1– sc 1 63–69, c 1– c 1 52–56, c 1– d 1 19– 33, d 1– d 1 51–60, d 1– e 1 19–36, e 1– e 1 26–33, e 1– f 1 25–33, f 1– f 1 17–22, h 3– h 3 39–53, h 2– h 2 16–36. Venter (Fig. 12). The striae mostly transverse, all ventral setae smooth and thin: 1a 23–30, 1b 33–38, 1c 36– 46, 2b 41–50, 3a 27–32, 3b 31–39, ag 31–39, ps 1 10–13, ps 2 9–14. Distances between setal bases: 1a–1a 23–28, 3a–3a 43–53, ag–ag 29–35, ps 1– ps 1 11–16, ps 2– ps 2 12–20. Gnathosoma (Fig. 17A). Subcapitular setae m smooth, length 26–30, shorter than distance m–m 29–35; Supracoxal setae e 2.4 –3. Setae d PFe 27–36. Setae l ′ PGe 20–27, d PTi 18–23, l ′ PTi 16–22, l″ PTi 9–12; palp tarsus with cone-shaped spinneret, suζ 4–5, twice as long as width 2–3. Single solenidion, ω 3.2–4.7, two eupathidia (ul ′ζ and ul″ζ) subequal in length 4–5, three normal setae, a 5–6, b 4–5, c 5–6. Legs (Fig. 13). Two pairs of duplex setae of tarsi I medial and adjacent: ω ′ 25–37, ω″ 50–61 in length; tarsi II: ω″ 32–37 in length; tibiae I with one solenidion φ 34–40. All leg setae smooth (Fig. 13). Number of phaneres on legs I–IV (the number of solenidia and eupathidia respectively show in parentheses): Lengths of leg segments: trochanter I 22–28, femur I 43 –50, genu I 24–27, tibia I 24–30, tarsus I 44 –49; trochanter II 21–28, femur II 32 –38, genu II 20–26, tibia II 18–26, tars, Published as part of Li, Juan, Yi, Tian-Ci, Guo, Jian-Jun & Jin, Dao-Chao, 2018, Ontogenetic development and redescription of Oligonychus pratensis (Banks, 1912) (Acari: Tetranychidae), pp. 349-375 in Zootaxa 4486 (3) on pages 350-372, DOI: 10.11646/zootaxa.4486.3.7, http://zenodo.org/record/1437118, {"references":["Pritchard, A. E. & Baker, E. W. (1955) A revision of the spider mite family Tetranychidae, 2. 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