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Bai, Xiaoshuan, Heiss, Ernst, Cai, Wanzhi (2020): Paracremastaptera, a new apterous genus of Mezirinae from China (Hemiptera Aradidae). Zootaxa 4894 (3): 445-450, DOI: https://doi.org/10.11646/zootaxa.4894.3.10

Paracremastaptera Bai, Heiss & Cai, gen. nov. Type species: Paracremastaptera ximaensis Bai, Heiss & Cai, sp.nov. Diagnosis. Apterous, of medium size (4.75mm), habitus ovate; coloration blackish brown, surface rough, deeply punctured and glabrous; the body surface with only scattered erect hairs on tubercles, legs and antennal segment I with erect, apically curved hairs; head wider than long, eyes stalked, clypeus short, narrow, apically rounded, genae plate-like, not reaching the apex of clypeus with a pair of knob-like tubercles basally; thoracic segments fused to mtg I+II and tergal plate, without discernible fusion line, a median longitudinal strongly elevated ridge with a pair of large tubercles on each segment along meso-, metanotum and mtg I+II, median pentagonal elevation highest on mtg IV, then sloping posteriorly flanked by a pair of transverse short ridges on mtg III; metasternum with a pair of pits in front of hind coxae; mst VII of male glabrous and smooth medially with a round tubercle at middle; spiracles II absent, III���IV ventral, V���VII sublateral and visible from above, spiracle VIII terminal on paratergites VIII. Paracremastaptera gen. nov. resembles Cremastaptera Usinger & Matsuda, 1959 from Java and Sumatra, sharing basic habitus and the conspicuous tubercle on mst VII of male, it is distinguished from the latter genus by a set of morphological features: eyes stalked, directed anterolaterally; the median thoracic longitudinal strongly elevated ridge with a pair of large tubercles on each segment along meso-, metanotum and mtg I+II (vs. eyes not stalked, directed laterally; thorax without a median longitudinal strongly elevated ridge along meso-, metanotum and mtg I+II in Cremastaptera). Description. Head. Wider across eyes than long; clypeus short, longitudinally elevated; genae plate-like, not reaching the apex of clypeus; antenniferous lobes cup-like, roundly narrowed apically; eyes large, semiglobose, stalked; postocular borders slightly convex, converging posteriorly to constricted neck, with sparse erect hairs; antennae short, about 1.5 times as long as width of head, first segment longest and thickest, curved and thinner at base, barrel-shaped apically, second shortest, and third longer than fourth, second and third cylindrical, fourth fusiform; rostrum arising from a slit-like atrium, rostral groove wide and deep with carinate lateral borders, open posteriorly. Thorax and mtg I+II. Pronotum attenuated anteriorly; anterolateral borders oblique; anterolateral angles triangular, not protruding; collar ill-defined, anterior margin concave; disc laterally with three prominent tubercles on either side. Mesonotum with a pair of large tubercles on either side; meso-, metanotum and mtg I+II fused, with a median longitudinal strongly elevated ridge with a pair of large tubercles on each segment, flanked by deeply punctured sclerites laterally. Abdomen. Fused mtg III to VI forming the tergal plate, anteriorly fused to mtg I+II, median pentagonal elevation highest on mtg IV, then sloping posteriorly flanked by a pair of transverse short ridges on mtg III, lateral apodemal punctures deep; deltg II triangular, reaching to mesonotum anteriorly, anterolaterally delimited by large dorsolaterally produced metathoracic scent gland evaporatoria which are visible from above; mtg VII strongly elevated posteriorly with a transverse ridge; spiracles II absent, III���IV ventral, V���VII sublateral and visible from above, spiracle VIII terminal on paratergites VIII, these short and truncate. Venter. Pro-, meso- and metasternum flattened medially, smooth and glabrous at middle, lateral parts with sparse pilosity; mst VII of male glabrous and smooth medially with a prominent round tubercle at middle. Etymology: The generic name is composed of ���para-��� (Greek) close to and Cremastaptera. Distribution: China (Yunnan)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, Paracremastaptera, a new apterous genus of Mezirinae from China (Hemiptera Aradidae), pp. 445-450 in Zootaxa 4894 (3) on page 446, DOI: 10.11646/zootaxa.4894.3.10, http://zenodo.org/record/4315801, {"references":["Usinger, R. L. & Matsuda, R. (1959) Classification of the Aradidae. British Museum (Natural History), London, 410 pp."]}

Paracremastaptera ximaensis Bai, Heiss & Cai sp. nov. (Figs.1���11) Type material: Holotype: ��, China, Yunnan, Yingjiang County, Xima Town, 2. X. 2019, Surnaa & Qian, H. G., leg. (IMNU). The specimen is provided with type label accordingly. Description. Male. Body blackish brown. Eyes reddish. Antennae and legs beset with dense hairs. Thorax and tergal plate deeply punctured. Head. Wider across eyes than long (1.25: 0.75); clypeus strongly raised anteriorly, reaching basal fifth of first antennal segment; genae short, not reaching the apex of clypeus with a pair of knob-like tubercles basally; antenniferous lobes cup-like; antennae 1.48 times as long as width of head across eyes, length of antennal segments I to IV = 0.60: 0.30: 0.55: 0.40; eyes stalked, large, directed anterolaterally; postocular borders constricted posteriorly; vertex anteriorly with a median inverted triangular depression, a transvers carina behind clypeus, and posteriorly with a longitudinal strongly elevated granulate carina flanked by a pair of large, ovate infraocular granulate callosities; rostrum long, almost reaching to posterior margin of prosternum; rostral groove wide, deep, opened posteriorly. Pronotum. 2.43 times as wide as long (1.7: 0.70); anterolateral borders slightly sinuate, oblique; anterior margin concave; disk transversally granulate and carinate anteriorly, followed posteriorly by a median T-shaped longitudinal groove flanked by a pair of subtriangular sclerites, laterad of groove with three large prominent tubercles on either side; lateral margins straight; posterior margin broadly convex, carinate, smooth. Mesonotum. Wider than pronotum (2.1: 1.7); separated from pronotum by very deep furrows; median ridge with a pair of large round longitudinal tubercles flanked by punctured sclerites; disc narrow, broad, with a pair of prominent conical tubercles on either side. Metanotum. Wider than mesonotum (2.3: 2.1); fused with mtg I+II and mesonotum, median ridge with a pair of large round longitudinal tubercles flanked by punctured sclerites. Abdomen. Mtg I+II completely fused with tergal plate, median ridge with two short longitudinal carinae on mtg I and two oblique longitudinal carinae on the mtg II; tergal plate subquadrangular, posterior margin truncate, lateral margins slightly rounded, median pentagonal ridge highly raised on mtg IV, flanked by a pair of transverse short ridges on mtg III, then tapering posteriorly; laterad of median ridge with the usual pattern of large and small callous spots; deltg II���VII separated by fine sulci, lateral margins of deltg II���VII raised and carinate with pairs of pilose tubercles on posterior margin of each segment; pygophore sinuate posteriorly; paratergites VIII short and truncate. Venter. Prosternum with a round pilose median elevation; meso- and metasterna fused to each other, separated from prosternum and mst I+II by a transverse sulcus; metathoracic scent gland evaporatoria prominent, straight and widely gaping, laterally visible from above; anterior margin of mst III���VI deeply pitted; mst VII with a prominent round tubercle at middle; spiracles II absent, III to VII placed on vltg III���VII, V���VII visible from above, VIII terminal. Legs. Femora moderately incrassate, with trochanters separated; tibiae straight; protibial comb present; claws without pulvilli. Measurements [ in mm, �� (n=1) ]. Body length 4.75; maximal width of abdomen 2.5 length of head 0.75, width 1.25; length pronotum 0.70, width 1.7; width of mesonotum 2.1; width of metanotum 2.3; length of antennae 1.85. Etymology: This specific name is named after the holotype locality. Distribution: China (Yunnan, Xima Town)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, Paracremastaptera, a new apterous genus of Mezirinae from China (Hemiptera Aradidae), pp. 445-450 in Zootaxa 4894 (3) on page 447, DOI: 10.11646/zootaxa.4894.3.10, http://zenodo.org/record/4315801

Key to the apterous genera of Carventinae from Hainan Province, China 1. Spiracles II lateral and visible from above................................. Caiaptera Bai & Heiss, 2011 (Figs.31, 32) - Spiracles II ventral.................................................................................... 2 2. Meso- and metanota fused to mtg I+II at middle, with a median longitudinal smooth ridge, flattened from anterior margin of mesonotum to anterior margin of tergal plate................... Notoplocaptera Usinger & Matsuda, 1959 (Figs. 33, 34) - Metanotum separated from mtg I and II by thin transverse suture................................................ 3 3. Spiracles III lateral and visible from above................................................................. 4 - Spiracles III ventral or sublateral......................................................................... 5 4. Anterolateral angles of pronotum roundly produced over collar, median thoracic sclerite bottle-shaped, surface smooth, vltg VII of male with a small shiny callus near spiracle VII, pygophore narrowly elongate posteriorly.................................................................................... Paralibiocoris Bai, Heiss & Cai, 2018 (Figs. 35, 36) - Anterolateral angles of pronotum truncate not produced over collar, median thoracic sclerite of conical shape, surface granulate with longitudinal sulcus; vltg VII of male with large oblique shiny raised callus across whole vltg, pygophore shorter, rounded posteriorly............................................... Neolibiocoris Bai, Heiss & Cai, gen. nov. (Figs. 1���15) 5. Spiracles II to IV ventral, V to VII lateral and visible from above........ Crassocoris Bai, Heiss & Cai, 2007 (Figs. 37, 38) - Spiracles II ventral, III to IV sublateral, IV faintly visible from above, V to VII lateral and visible from above............ 6 6. Lateral margins of thoracic segments not incrassate, each showing two parallel layers in lateral view......................................................................... Rotundocoris Bai, Heiss & Cai, 2019 (Figs. 16-30, 39, 40) - Lateral margins of thoracic segments incrassate, each showing three parallel layers in lateral view............................................................................................ Oblongocoris Bai, Heiss & Cai, 2020, Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from Hainan, China (Hemiptera: Heteroptera: Aradidae), pp. 235-248 in Zootaxa 4885 (2) on page 247, DOI: 10.11646/zootaxa.4885.2.5, http://zenodo.org/record/4296574, {"references":["Usinger, R. L. & Matsuda, R. (1959) Classification of the Aradidae. British Museum (Natural History), London, 410 pp.","Bai, X. S., Heiss, E. & Cai, W. Z. (2007) A new apterous genus and species of Carventinae from China (Heteroptera: Aradidae). Linzer Biologische Beitrage, 39, 45 - 50.","Bai, X. S., Heiss, E. & Cai, W. Z. (2019) Neocrassocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae). Zootaxa, 4612 (1), 95 - 102. https: // doi. org / 10.11646 / zootaxa. 4612.1.6"]}

Neolibiocoris Bai, Heiss & Cai, gen. nov. Type species. Neolibiocoris obtusus Bai, Heiss & Cai, sp. nov. Diagnosis. Apterous, of medium size (5.1���6.4 mm), habitus elongate oval; coloration reddish brown, surface glabrous; lateral margins of body, legs and antennae with setigerous tubercles; thorax with a median longitudinal conical sclerite along meso- and metanotum, then restricted and depressed and carinate along mtg I+II, the fusion line between metanotum and mtg I+II marked by a suture; spiracles III���VII lateral, visible from above. Male vltg VII with a shiny, large, obliquely raised callus across whole vltg. Description. Head longer than wide across eyes; genae slender, apices acute; antenniferous tubercles stout, conical, apically pointed; antennae long and slender, first segment stout and clavate, longest, second cylindrical, third longer than second and cylindrical, fourth fusiform, shortest; eyes small, semiglobose, with convex face; postocular borders incised behind eyes, then straightly converging posteriorly to constricted neck; rostrum arising from a slit-like atrium not reaching limits of rostral groove. Thorax and mtg I+II. Pronotum attenuated anteriorly, anterolateral angles produced and forming blunt subrounded lobes, reaching or not reaching to collar, disc with median groove, separated from mesonotum by a transverse intersegmental furrow; meso- and metanota separated only laterally, the elevated median conical ridge granulate, with longitudinal sulcus; lateral sclerites with longitudinal elevations; metanotum separated from fused mtg I+II by a narrow transverse sulcus. Abdomen. Mtg III to VI fused into a subrectangular tergal plate, slightly elevated along midline with usual pattern of large and small callous spots and dots; mtg VII strongly elevated posteriorly in male and slightly elevated in female; pygophore short, heart-shaped; paratergites VIII clavate or lobiform. Venter. Prosternum with a median longitudinal elevation, anteriorly granulate; meso- and metasterna fused, flattened medially, spiracle VIII terminal on ptg VIII; male vltg VII with shiny, large, obliquely raised callus. Legs. Long and slender, without spines, preapical comb on fore tibia present, femora subcylindrical, claws with fine pulvilli. Etymology. From the Greek prefix neo - (Greek), meaning ���new���, combined with the generic name Libiocoris. Distribution. China (Hainan). Discussion. Neolibiocoris gen. nov. is related to Paralibiocoris Bai, Heiss & Cai, 2018, which is also described from Hainan Island. It differs however by obtuse anterolateral angles of pronotum, not produced over collar, the elongate conical shape of median thoracic sclerite with granulate surface and longitudinal sulcus, by large shiny callus on vltg VII of male and heart shaped pygophore (Figs. 1-15) (vs. anterolateral angles of pronotum rounded and produced over collar, median thoracic sclerite bottle shaped with smooth surface, by small oblique callus on vltg VII of male and conically produced pygophore (Figs. 39,40)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from Hainan, China (Hemiptera: Heteroptera: Aradidae), pp. 235-248 in Zootaxa 4885 (2) on page 236, DOI: 10.11646/zootaxa.4885.2.5, http://zenodo.org/record/4296574

Neolibiocoris obtusus Bai, Heiss & Cai, sp. nov. (Figs. 1���15) Type material. Holotype (��): China, Hainan, Diaoluo Mountain, 9.v.2008, leg. X.S. Bai (IMNU). Paratypes: China, Hainan: Diaoluo Mountain, 9.v.2008, leg. X.S. Bai (30 ���� 10 ♀♀, IMNU, CEHI); Baisha, Yinggeling, 950 m, 3.viii.2007, leg. X.S. Bai (2 ����, IMNU, CEHI); Tongzha, Wuzhishan, 6.v.2009, leg. Zhang & Yang (1 ��, IMNU); Ledong, Jianfenling, 28.iv.2009, leg. Zhang & Yang (2 ����, IMNU, CEHI). These specimens are provided with type labels accordingly., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from Hainan, China (Hemiptera: Heteroptera: Aradidae), pp. 235-248 in Zootaxa 4885 (2) on page 236, DOI: 10.11646/zootaxa.4885.2.5, http://zenodo.org/record/4296574

Rotundocoris pyramidalis Bai & Heiss, sp. nov. (Figs. 16���30) Type material. Holotype (��): China, Hainan, Baisha, Yinggeling, 950 m, 5.i.2010, leg. X. S. Bai (IMNU). Paratypes: China, Hainan, Baisha, Yinggeling, 950 m, 5.i.2010, leg. X. S. Bai (1 ♀, IMNU); same but 21.vii.2009 (1 ��, IMNU); Tongzha, Wuzhishan, 6.v.2009, leg. Zhang & Yang (1 ��, IMNU). These specimens are provided with type labels accordingly. Diagnosis. Rotundocoris pyramidalis sp. nov. resembles R. stenonotum Bai, Heiss & Cai, 2019 and R. obliquonotum Bai, Heiss & Cai, 2019, both from Hainan, sharing general habitus, but is distinguished from them by a set of morphological features: the presence of a median longitudinal pentagonal-shaped smooth pyramidal ridge along meso- and metanota; male vltg VII being provided with a large triangular callus (vs. median longitudinal sclerite bottle-shaped along meso- and metanotum in R. stenonotum and subpentagonal bottle-shaped ridge with a longitudinal sulcus in R. obliquonotum; male vltg VII with large oblique callose ridges in both species.) Description of male. Head slightly longer than wide across eyes (1.0: 0.9); genae anteriorly produced over clypeus and notched, clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 1.78 times as long as width of head across eyes, first segment stout and clavate, longest, second cylindrical, shortest, third longer than fourth and cylindrical, fourth fusiform, longer or as long as second, length of antennal segments I to IV = 0.5: 0.3: 0.45: 0.35; eyes small, convex; postocular tubercles small, not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with irregular carinae flanked by a pair of large, ovate infraocular callosities. rostrum arising from a slit-like atrium not reaching limits of rostral groove. Pronotum 3.22 times as wide as long (1.45: 0.45), attenuated anteriorly; collar narrow; anterolateral angles produced and forming blunt lobes, reaching to anterior margin of collar; disc with a longitudinal median furrow, flanked by a pair of subtriangular sclerites and laterad with a pair of subrectangular plates with irregular callosities and granulate carinae; posterior margin of pronotum slightly convex, separated from mesonotum by a deep furrow. Mesonotum wider than pronotum (1.75: 1.45); separated laterally from metanotum by very deep furrows, medially across meso- and metanota with an elongate, pentagonal pyramidal ridge, pointed anteriorly and truncate posteriorly, smooth; laterad of median ridge with a pair of subrectangular plates with irregular callosities and granulate carinae along lateral margin. Metanotum. Wider than mesonotum (2.05: 1.75); separated from fused mtg I+II by a slightly sinuate thin sulcus; laterad of median ridge with a pair of large subrectangular plates with irregular longitudinal callosities, lateral margins granulate like those of mesonotum. Abdomen. Mtg I and II completely fused, depressed at middle, there with a median thin longitudinal ridge laterally separated by deep furrows from wide oblique lateral plates, sloping posteriorly and sideways, further laterad with a pair of long and narrow oblique depressions; tergal plate subrectangular, posterior margin truncate, lateral margins slightly rounded, median ridge slightly raised on mtg III, a pentagonal elevation on mtg IV, then tapering posteriorly; laterad of median ridge with faint usual pattern of large and small callous spots; deltg II+III completely fused, deltg IV���VII separated by fine sulci; posterolateral angles of deltg VII slightly protruding, triangular; ptg VIII clavate, reaching to posterior margin of deltg VII; pygophore short cordate and posteriorly rounded (Figs. 26���27); parameres slender (Figs. 28���30). Venter. Prosternum raised with longitudinal elevations at middle, anteriorly granulate; meso- and metasterna fused, flattened medially; sterna III to VI raised along posterior margin, depressed along anterior border with triangular smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions and a pair of round callous spots of usual pattern; spiracles II ventral, III to IV sublateral and only partly faintly visible from above, V to VII lateral, placed on dorsally reflexed rim of vltg V-VII and visible from above, VIII terminal; vltg VII with a large triangular callus. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size; mtg VII slightly elevated posteriorly; posterolateral angles of deltg VII triangular, ptg VIII lobiform, reaching to end of tergite IX; spiracles II ventral, III to IV sublateral and only IV partly visible from above, V to VII lateral and visible from above as in male, VIII terminal. Measurements [in mm, �� (n=3), followed by ♀ (n=1), holotype in parentheses]. Body length 4.90���5.25 / 5.75 (4.90); maximal width of abdomen 2.40���2.70 / 3.00 (2.40); head length 1.00 / 1.10 (1.00), width 0.90 / 0.95 (0.90); pronotum length 0.45���0.50 / 0.50 (0.45), width 1.45���1.70 / 1.75 (1.45); mesonotum width 1.75���2.00 / 2.10 (1.75); metanotum width 2.05���2.30 / 2.40 (2.05); length of antennal segments I���IV = 0.50���0.55: 0.30: 0.40���0.45: 0.300.35 / 0.65: 0.325: missing (0.50: 0.30: 0.45: 0.35) and 0.65: 0.325: missing. Etymology: The specific name is the Latin adjective pyramidalis, -, - e, meaning ���pyramidal���, ���pyramidshaped���, referring to the structure of the median pentagonal ridge along meso- and metanotum. Distribution: China (Hainan)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from Hainan, China (Hemiptera: Heteroptera: Aradidae), pp. 235-248 in Zootaxa 4885 (2) on pages 240-241, DOI: 10.11646/zootaxa.4885.2.5, http://zenodo.org/record/4296574, {"references":["Bai, X. S., Heiss, E. & Cai, W. Z. (2019) Neocrassocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae). Zootaxa, 4612 (1), 95 - 102. https: // doi. org / 10.11646 / zootaxa. 4612.1.6"]}

Rotundocoris pyramidalis Bai & Heiss, sp. nov. (Figs. 16–30) Type material. Holotype (³): China, Hainan, Baisha, Yinggeling, 950 m, 5.i.2010, leg. X. S. Bai (IMNU). Paratypes: China, Hainan, Baisha, Yinggeling, 950 m, 5.i.2010, leg. X. S. Bai (1 ♀, IMNU); same but 21.vii.2009 (1 ³, IMNU); Tongzha, Wuzhishan, 6.v.2009, leg. Zhang & Yang (1 ³, IMNU). These specimens are provided with type labels accordingly. Diagnosis. Rotundocoris pyramidalis sp. nov. resembles R. stenonotum Bai, Heiss & Cai, 2019 and R. obliquonotum Bai, Heiss & Cai, 2019, both from Hainan, sharing general habitus, but is distinguished from them by a set of morphological features: the presence of a median longitudinal pentagonal-shaped smooth pyramidal ridge along meso- and metanota; male vltg VII being provided with a large triangular callus (vs. median longitudinal sclerite bottle-shaped along meso- and metanotum in R. stenonotum and subpentagonal bottle-shaped ridge with a longitudinal sulcus in R. obliquonotum; male vltg VII with large oblique callose ridges in both species.) Description of male. Head slightly longer than wide across eyes (1.0: 0.9); genae anteriorly produced over clypeus and notched, clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 1.78 times as long as width of head across eyes, first segment stout and clavate, longest, second cylindrical, shortest, third longer than fourth and cylindrical, fourth fusiform, longer or as long as second, length of antennal segments I to IV = 0.5: 0.3: 0.45: 0.35; eyes small, convex; postocular tubercles small, not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with irregular carinae flanked by a pair of large, ovate infraocular callosities. rostrum arising from a slit-like atrium not reaching limits of rostral groove. Pronotum 3.22 times as wide as long (1.45: 0.45), attenuated anteriorly; collar narrow; anterolateral angles produced and forming blunt lobes, reaching to anterior margin of collar; disc with a longitudinal median furrow, flanked by a pair of subtriangular sclerites and laterad with a pair of subrectangular plates with irregular callosities and granulate carinae; posterior margin of pronotum slightly convex, separated from mesonotum by a deep furrow. Mesonotum wider than pronotum (1.75: 1.45); separated laterally from metanotum by very deep furrows, medially across meso- and metanota with an elongate, pentagonal pyramidal ridge, pointed anteriorly and truncate posteriorly, smooth; laterad of median ridge with a pair of subrectangular plates with irregular callosities and granulate carinae along lateral margin. Metanotum. Wider than mesonotum (2.05: 1.75); separated from fused mtg I+II by a slightly sinuate thin sulcus; laterad of median ridge with a pair of large subrectangular plates with irregular longitudinal callosities, lateral margins granulate like those of mesonotum. Abdomen. Mtg I and II completely fused, depressed at middle, there with a median thin longitudinal ridge laterally separated by deep furrows from wide oblique lateral plates, sloping posteriorly and sideways, further laterad with a pair of long and narrow oblique depressions; tergal plate subrectangular, posterior margin truncate, lateral margins slightly rounded, median ridge slightly raised on mtg III, a pentagonal elevation on mtg IV, then tapering posteriorly; laterad of median ridge with faint usual pattern of large and small callous spots; deltg II+III completely fused, deltg IV–VII separated by fine sulci; posterolateral angles of deltg VII slightly protruding, triangular; ptg VIII clavate, reaching to posterior margin of deltg VII; pygophore short cordate and posteriorly rounded (Figs. 26–27); parameres slender (Figs. 28–30). Venter. Prosternum raised with longitudinal elevations at middle, anteriorly granulate; meso- and metasterna fused, flattened medially; sterna III to VI raised along posterior margin, depressed along anterior border with triangular smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions and a pair of round callous spots of usual pattern; spiracles II ventral, III to IV sublateral and only partly faintly visible from above, V to VII lateral, placed on dorsally reflexed rim of vltg V-VII and visible from above, VIII terminal; vltg VII with a large triangular callus. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size; mtg VII slightly elevated posteriorly; posterolateral angles of deltg VII triangular, ptg VIII lobiform, reaching to end of tergite IX; spiracles II ventral, III to IV sublateral and only IV partly visible from above, V to VII lateral and visible from above as in male, VIII terminal. Measurements [in mm, ³ (n=3), followed by ♀ (n=1), holotype in parentheses]. Body length 4.90–5.25 / 5.75 (4.90); maximal width of abdomen 2.40–2.70 / 3.00 (2.40); head length 1.00 / 1.10 (1.00), width 0.90 / 0.95 (0.90); pronotum length 0.45–0.50 / 0.50 (0.45), width 1.45–1.70 / 1.75 (1.45); mesonotum width 1.75–2.00 / 2.10 (1.75); metanotum width 2.05–2.30 / 2.40 (2.05); length of antennal segments I–IV = 0.50–0.55: 0.30: 0.40–0.45: 0.300.35 / 0.65: 0.325: missing (0.50: 0.30: 0.45: 0.35) and 0.65: 0.325: missing. Etymology: The specific name is the Latin adjective pyramidalis, -, - e, meaning “pyramidal”, “pyramidshaped”, referring to the structure of the median pentagonal ridge along meso- and metanotum. Distribution: China (Hainan).

Bai, Xiaoshuan, Heiss, Ernst, Cai, Wanzhi (2020): A new apterous genus of Carventinae from Hainan, China (Hemiptera: Heteroptera: Aradidae). Zootaxa 4885 (2): 235-248, DOI: https://doi.org/10.11646/zootaxa.4885.2.5

Key to the apterous genera of Carventinae from Hainan Province, China 1. Spiracles II lateral and visible from above................................. Caiaptera Bai & Heiss, 2011 (Figs.31, 32) - Spiracles II ventral.................................................................................... 2 2. Meso- and metanota fused to mtg I+II at middle, with a median longitudinal smooth ridge, flattened from anterior margin of mesonotum to anterior margin of tergal plate................... Notoplocaptera Usinger & Matsuda, 1959 (Figs. 33, 34) - Metanotum separated from mtg I and II by thin transverse suture................................................ 3 3. Spiracles III lateral and visible from above................................................................. 4 - Spiracles III ventral or sublateral......................................................................... 5 4. Anterolateral angles of pronotum roundly produced over collar, median thoracic sclerite bottle-shaped, surface smooth, vltg VII of male with a small shiny callus near spiracle VII, pygophore narrowly elongate posteriorly.................................................................................... Paralibiocoris Bai, Heiss & Cai, 2018 (Figs. 35, 36) - Anterolateral angles of pronotum truncate not produced over collar, median thoracic sclerite of conical shape, surface granulate with longitudinal sulcus; vltg VII of male with large oblique shiny raised callus across whole vltg, pygophore shorter, rounded posteriorly............................................... Neolibiocoris Bai, Heiss & Cai, gen. nov. (Figs. 1–15) 5. Spiracles II to IV ventral, V to VII lateral and visible from above........ Crassocoris Bai, Heiss & Cai, 2007 (Figs. 37, 38) - Spiracles II ventral, III to IV sublateral, IV faintly visible from above, V to VII lateral and visible from above............ 6 6. Lateral margins of thoracic segments not incrassate, each showing two parallel layers in lateral view......................................................................... Rotundocoris Bai, Heiss & Cai, 2019 (Figs. 16-30, 39, 40) - Lateral margins of thoracic segments incrassate, each showing three parallel layers in lateral view............................................................................................ Oblongocoris Bai, Heiss & Cai, 2020

Oblongocoris hainanensis Bai, Heiss & Cai sp. nov. (Figs. 1���6) Type material: Holotype: ♀, China, Hainan, Jianfeng, Tianchi, 16.viii.2007, leg. X.S. Bai & W.J. Zhang (IMNU). Paratype: 1 ♀, as holotype (CEHI). The specimens are provided with type labels accordingly. Description. Female. Body blackish brown; eyes reddish; antenna and legs covered with adpressed setae; surface of head, thorax and connexiva granulate and irregularly carinate. Head slightly longer than width across eyes (1.16: 1.05); genae slightly notched anteriorly, reaching basal third of first antennal segment; clypeus strongly raised anteriorly, with a tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 1.55 times as long as width of head across eyes, length of antennal segments I to IV = 0.61: 0.31 0.37: 0.34; eyes small, convex laterally; postocular tubercles small and not protruding, postocular borders constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities, interocular surface with irregular carina; rostrum short, rostral groove wide, deep, closed posteriorly. Pronotum 2.92 times as wide as long (1.90: 0.65), strongly attenuated anteriorly; collar thick, as long as wide as base of first antennal segment; anterolateral angles slightly produced and forming round lobes, granulate, reaching to anterior margin of collar; disc with median groove, flanked by a pair of subtriangular sclerites, shining, with conical tubercles and laterad with a pair of subrectangular plates with irregular callosities and granulate lateral margins; posterior margin of pronotum slightly convex posteriorly, separated from mesonotum by a deep furrow. Mesonotum wider than pronotum (2.25: 1.90); separated laterally from metanotum by very deep furrows; medially across meso- and metanotum with an elongate pentagonal ridge, pointed anteriorly and truncate posteriorly, anterior surface at half length of ridge with median shallow longitudinal suclus, posterior surface of ridge smooth, flanked by deep furrows; laterad of median ridge with a pair of subrectangular plates with irregular callosities and granulate carinae along lateral margin. Metanotum wider than mesonotum (2.55: 2.25); separated from fused mtg I+II by a slightly sinuate thin sulcus; laterad of median ridge with a pair of subtriangular sclerites and a pair of large subrectangular plates with irregular callosities, lateral margins granulate like those of mesonotum. Abdomen: mtg I and II completely fused, depressed at middle, with a median longitudinal carina on the bottom of depression flanked by a pair of transverse elevated ridges and wide smooth oblique lateral plates, sloping posteriorly and sideways, further laterad with a pair of large subtriangular deeply excavated depressions; tergal plate subquadrangular, posterior margin truncate, lateral margins slightly rounded, median ridge highly raised on mtg III followed by a subpentagonal elevation on mtg IV, then tapering posteriorly; laterad of median ridge with the usual pattern of large and small callous spots; deltg II+III completely fused, deltg IV���VII separated by fine sulci; posterolateral angles of deltg VII slightly protruding, triangular; ptg VIII dentiform. Venter: sterna III���VI raised along posterior margin, depressed along anterior border with triangular smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions and a pair of round callous spots of usual pattern; spiracles II ventral, III to IV sublateral and only partly faintly visible from above, V���VII lateral, placed on dorsally reflexed rim of vltg V���VII and visible from above, VIII terminal. Legs slender, preapical comb on fore tibia present, claws with fine pulvilli. Measurements. Holotype: body length 5.70; maximal width of abdomen 2.90; length of head 1.16, width 1.05; length pronotum 0.65, width 1.90; width of mesonotum 2.25; width of metanotum 2.55; lengths antennal segments I���IV = 0.61, 0.31, 0.37, 0.34. Paratype: body length 5.40. Etymology: The specific epithet hainanensis refers to Hainan where the holotype was collected; adjective. Distribution: China (Hainan)., Published as part of Shi, Kai, Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from China (Hemiptera: Heteroptera Aradidae), pp. 385-390 in Zootaxa 4820 (2) on pages 386-389, DOI: 10.11646/zootaxa.4820.2.12, http://zenodo.org/record/4397579

Key to the genera of the subfamily Carventinae from Hainan Province, China 1. Macropterous........................................................................................ 2 - Apterous............................................................................................ 3 2. Genae not protruding beyond clypeus; membrane without veins................ Lissonotocoris Usinger & Matsuda, 1959 - Genae protruding beyond clypeus; membrane with distinct veins................................ Carventus St��l,1865 3. Spiracles II lateral and visible from above........................................... Caiaptera Bai & Heiss, 2011 - Spiracles II ventral.................................................................................... 4 4. Meso- and metanota fused to mtg I+II at middle, with a median longitudinal smooth ridge, flattened from anterior margin of mesonotum to anterior margin of tergal plate.............................. Notoplocaptera Usinger & Matsuda, 1959 - Metanotum separated from mtg I and II by thin transverse suture............................................... 5 5. Spiracles III lateral and visible from above................................... Paralibiocoris Bai, Heiss & Cai, 2018 - Spiracles III ventral or sublateral......................................................................... 6 6. Spiracles II to IV ventral, V to VII lateral and visible from above................... Crassocori s Bai, Heiss & Cai, 2007 - Spiracles II ventral, III to IV sublateral, IV at most faintly visible from above, V to VII lateral and visible from above...... 7 7. Pro-, meso- and metasterna fused medially, with distinct fusion suture between each other.................................................................................................. Rotundocoris Bai, Heiss & Cai, 2019 - Pro-, meso- and metasterna fused medially, without a fusion suture between each other............ Oblongocoris gen. n., Published as part of Shi, Kai, Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from China (Hemiptera: Heteroptera Aradidae), pp. 385-390 in Zootaxa 4820 (2) on page 389, DOI: 10.11646/zootaxa.4820.2.12, http://zenodo.org/record/4397579, {"references":["Usinger, R. L. & Matsuda, R. (1959) Classification of the Aradidae. British Museum (Natural History), London, 410 pp.","Stal, C. (1865) Hemiptera Africana. Vol. 3. Norstedtiana, Stockholm, 200 pp.","Heiss, E. (2011) Bruneiaptera tarmanni nov. gen., nov. sp., a new apterous Carventinae from Brunei Darussalam (Hemiptera: Heteroptera: Aradidae). Linzer Biologische Beitrage, 43 (1), 331 - 336.","Bai, X. S., Heiss, E. & Cai, W. Z. (2007) A new apterous genus and species of Carventinae from China (Heteroptera: Aradidae). Linzer Biologische Beitrage, 39, 45 - 50.","Bai, X. S., Heiss, E. & Cai, W. Z. (2019 a) Neocrassocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae). Zootaxa, 4612 (1), 095 - 102. https: // doi. org / 10.11646 / zootaxa. 4612.1.6 k 9 u 9 u"]}

Oblongocoris Bai, Heiss & Cai, gen. nov. Type species. Oblongocoris hainanensis Bai, Heiss & Cai, sp. nov. Diagnosis. Apterous, of medium size (5.4���5.7 mm), body oblong oval; coloration blackish brown; surface rough, rugose and glabrous; lateral margins of body, legs and antennae with setigerous tubercles; thoracic segments fused to mtg I+II, with a median pentagonal ridge along meso- and metanota which is restricted, depressed and carinate along mtg I+II and flanked by a pair of transverse ridges on mtg I; fusion line between metanotum and mtg I+II marked by a suture; mtg III to VI fused into a subquadrangular tergal plate; spiracles II ventral, III���IV sublateral, IV at most faintly visible from above, V���VII lateral and visible from above. Oblongocoris gen. nov. resembles Rotundocoris Bai, Heiss & Cai 2019 from Hainan, China, sharing its basic habitus, but is distinguished from the latter by a set of morphological features: in Oblongocoris gen. nov. the lateral margins of the thoracic segments are incrassate, each showing three parallel layers in lateral view; the median deep furrow on the fused mtg I+II is flanked by a pair of transverse ridges on mtg I; and the pro-, meso- and metasterna are fused medially without a visible fusion suture between each other; whilst in Rotundocoris the lateral margins of thorax are not incrassate, showing two layers laterally; mtg I+II are without a pair of transverse ridges on mtg I; and the pro-, meso- and metasterna are fused medially with distinct fusion sutures between each other. Description. Head longer than width across eyes; genae slender, short; antenniferous tubercles stout, conical, apically pointed; eyes small, semiglobose, with convex face; postocular tubercles small, not protruding; postocular borders converging posteriorly to constricted neck; antennae short and slender, about 1.6 times as long as width of head, first segment longest, third longer than fourth, second shortest, first stout, clavate, second and third cylindrical, fourth fusiform; rostrum arising from a slit-like opening of atrium, not reaching limits of rostral groove. Thorax and mtg I+II. Pronotum strongly attenuated anteriorly, anterolateral angles rounded, granular, not protruding beyond collar, disc with medial groove. Meso- and metanota separated only laterally, with median pentagonal ridge, anterior surface on half length of ridge with a median shallow longitudinal sulcus, posterior surface of ridge smooth; metanotum with deep furrows adjacent to medial ridge, separated from mtg I and II by thin suture; lateral margins of thorax incrassate, showing three parallel layers laterally, with deep cleft between pro-, meso-, and metanota; mtg I+II fused, with a deep median groove with a thin longitudinal carina flanked by a pair of transverse elevated ridges and further laterad with a pair of large subtriangular deeply excavated depressions. Abdomen. Mtg III to VI fused into a subquadrangular tergal plate, anterior margin straightly elevated on median line with usual pattern of large and small callous spots and dots; mtg VII elevated posteriorly in female; deltg II+III completely fused, spiracles II ventral, III���IV sublateral, V���VII lateral on dorsally reflexed vltg V���VII and visible from above; ptg VIII dentiform. Venter. Pro-, meso- and metasterna fused, flattened medially, smooth. Thoracic sterna with conical processes pointing to coxae. Etymology: The generic name is composed of the Latin prefix oblongo - formed from the adjective oblongus, - a, - um, referring to the oblong habitus of the only included species, and the latinized Greek noun coris meaning bug. Gender masculine. Distribution: China (Hainan)., Published as part of Shi, Kai, Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from China (Hemiptera: Heteroptera Aradidae), pp. 385-390 in Zootaxa 4820 (2) on page 386, DOI: 10.11646/zootaxa.4820.2.12, http://zenodo.org/record/4397579, {"references":["Bai, X. S., Heiss, E. & Cai, W. Z. (2019 a) Neocrassocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae). Zootaxa, 4612 (1), 095 - 102. https: // doi. org / 10.11646 / zootaxa. 4612.1.6 k 9 u 9 u"]}

Key to the genera of the subfamily Carventinae from Hainan Province, China 1. Macropterous........................................................................................ 2 - Apterous............................................................................................ 3 2. Genae not protruding beyond clypeus; membrane without veins................ Lissonotocoris Usinger & Matsuda, 1959 - Genae protruding beyond clypeus; membrane with distinct veins................................ Carventus Stål,1865 3. Spiracles II lateral and visible from above........................................... Caiaptera Bai & Heiss, 2011 - Spiracles II ventral.................................................................................... 4 4. Meso- and metanota fused to mtg I+II at middle, with a median longitudinal smooth ridge, flattened from anterior margin of mesonotum to anterior margin of tergal plate.............................. Notoplocaptera Usinger & Matsuda, 1959 - Metanotum separated from mtg I and II by thin transverse suture............................................... 5 5. Spiracles III lateral and visible from above................................... Paralibiocoris Bai, Heiss & Cai, 2018 - Spiracles III ventral or sublateral......................................................................... 6 6. Spiracles II to IV ventral, V to VII lateral and visible from above................... Crassocori s Bai, Heiss & Cai, 2007 - Spiracles II ventral, III to IV sublateral, IV at most faintly visible from above, V to VII lateral and visible from above...... 7 7. Pro-, meso- and metasterna fused medially, with distinct fusion suture between each other.................................................................................................. Rotundocoris Bai, Heiss & Cai, 2019 - Pro-, meso- and metasterna fused medially, without a fusion suture between each other............ Oblongocoris gen. n.

A new apterous genus and species, Oblongocoris hainanensis gen. and sp. nov. (Hemiptera: Heteroptera: Aradidae: Carventinae), are described from Hainan, China. The diagnostic morphological features of the new genus and species are discussed and illustrated, and a key to genera of Carventinae from Hainan Island is presented.

Rotundocoris stenonotum Bai & Heiss, sp. nov. (Figs. 1���17) Type material. Holotype (♂): China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (IMNU). Paratypes: China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (2 ♂♂ 3 ♀♀, IMNU, CEHI); China, Hainan, Baisha, Yinggeling, 950 m, 2.viii.2007, leg. X. S. Bai (1 ♂ 3 ♀♀, IMNU, CEHI); China, Hainan, Bawang, Dongerlinchang, 14.x.2007, leg. W. J. Zhang (1 ♂, IMNU); provided with type labels accordingly. Description of male. Head. Slightly longer than wide across eyes (0.91: 0.78); genae notched anteriorly, reaching basal third of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.13 times as long as width of head across eyes, length of antennal segments I to IV= 0.58: 0.37: 0.41: 0.31; eyes small, convex; postocular tubercles small, not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 2.53 times as wide as long (1.29: 0.51), attenuated anteriorly; collar narrow; anterolateral angles produced and forming blunt lobes, reaching to anterior margin of collar; disc with a longitudinal median furrow, flanked by a pair of subtriangular sclerites and laterad with a pair of subrectangular plates with irregular callosities and granulate carinae; posterior margin of pronotum slightly convex, separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.6: 1.29); separated laterally from metanotum by very deep furrows, medially across meso- and metanota with an elongate, subpentagonal bottle-shaped ridge, 1.83 times as long as wide (0.75: 0.41), subrounded anteriorly and truncate posteriorly, smooth and without longitudinal sulcus; laterad of median ridge with a pair of subrectangular plates with irregular callosities and granulate carinae along lateral margin. Metanotum. Wider than mesonotum (1.87: 1.6); separated from fused mtg I+II by a slightly sinuate thin sulcus; laterad of median ridge with a pair of large subrectangular plates with irregular longitudinal callosities, lateral margins granulate like those of mesonotum. Abdomen. Mtg I and II completely fused, depressed at middle, there with a median thin longitudinal ridge laterally separated by deep furrows from wide oblique lateral plates, sloping posteriorly and sideways, further laterad with a pair of large subtriangular depressions; tergal plate subpentagonal, posterior margin truncate, lateral margins slightly rounded, median ridge slightly raised on mtg III, a pentagonal elevation on mtg IV, then tapering posteriorly; laterad of median ridge with the usual pattern of large and small callous spots; deltg II+III completely fused, deltg IV���VII separated by fine sulci; posterolateral angles of deltg VII slightly protruding, blunt; ptg VIII clavate, reaching to posterior margin of deltg VII; pygophore short and posteriorly rounded (Figs. 13���14); parameres slender (Figs. 15���17). Venter. Sterna III���VI raised along posterior margin, depressed along anterior border with triangular smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions and a pair of round callous spots of usual pattern; spiracles II ventral, III to IV sublateral and only partly faintly visible from above, V���VII lateral, placed on dorsally reflexed rim of vltg V���VII and visible from above, VIII terminal; vltg VII with shiny large oblique callus. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size. Head longer than wide across eyes (0.99: 0.82); length of antennal segments I to IV= 0.61: 0.37: 0.41: 0.31; pronotum wider than long (1.42: 0.54); width of mesonotum 1.84; width of metanotum 2.14; mtg VII slightly elevated posteriorly; posterolateral angles of deltg VII blunt, ptg VIII lobiform, shorter than tergite IX; spiracles II ventral, III to IV sublateral and only IV faintly visible from above, V to VII lateral and visible from above as in male, VIII terminal. Measurements (in mm, ♂ ♂ (n=3) / ♀♀ (n=4), holotype in parentheses). Body length 4.35���4.69 / 5.00���5.05 (4.69); maximal width of abdomen 2.18���2.18 / 2.62���2.65 (2.18). Head length 0.82���0.91 / 0.99���0.99 (0.91), width 0.75���0.78 / 0.82���0.82 (0.78). Pronotum length 0.51���0.51 / 0.54���0.54 (0.51), width 1.29���1.29 / 1.42���1.43 (1.29). Mesonotum width 1.60���1.60 / 1.84���1.87 (1.6). Metanotum width 1.87���1.90 / 2.14���2.14 (1.87). Length of antennal segments I���IV =0.54���0.58, 0.34���0.37, 0.41���0.41, 0.31���0.31 / 0.61���0.61, 0.37���0.37, 0.41���0.41, 0.31���0.31 (0.58, 0.37, 0.41, 0.31). Etymology. The specific name refers to the attenuated pronotum; it is formed from the Greek adjective stenos (narrow) and the latinized Greek noun notum (dorsal part of body); noun in apposition. Distribution. China (Hainan)., Published as part of Qian, Hongge, Bai, Xiaoshuan, Heiss, Ernst, Liu, Aiping & Cai, Wanzhi, 2019, Rotundocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae), pp. 526-534 in Zootaxa 4623 (3) on pages 527-530, DOI: 10.11646/zootaxa.4623.3.4, http://zenodo.org/record/3258627

Rotundocoris stenonotum Bai & Heiss, sp. nov. (Figs. 1–17) Type material. Holotype (♂): China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (IMNU). Paratypes: China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (2 ♂♂ 3 ♀♀, IMNU, CEHI); China, Hainan, Baisha, Yinggeling, 950 m, 2.viii.2007, leg. X. S. Bai (1 ♂ 3 ♀♀, IMNU, CEHI); China, Hainan, Bawang, Dongerlinchang, 14.x.2007, leg. W. J. Zhang (1 ♂, IMNU); provided with type labels accordingly. Description of male. Head. Slightly longer than wide across eyes (0.91: 0.78); genae notched anteriorly, reaching basal third of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.13 times as long as width of head across eyes, length of antennal segments I to IV= 0.58: 0.37: 0.41: 0.31; eyes small, convex; postocular tubercles small, not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 2.53 times as wide as long (1.29: 0.51), attenuated anteriorly; collar narrow; anterolateral angles produced and forming blunt lobes, reaching to anterior margin of collar; disc with a longitudinal median furrow, flanked by a pair of subtriangular sclerites and laterad with a pair of subrectangular plates with irregular callosities and granulate carinae; posterior margin of pronotum slightly convex, separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.6: 1.29); separated laterally from metanotum by very deep furrows, medially across meso- and metanota with an elongate, subpentagonal bottle-shaped ridge, 1.83 times as long as wide (0.75: 0.41), subrounded anteriorly and truncate posteriorly, smooth and without longitudinal sulcus; laterad of median ridge with a pair of subrectangular plates with irregular callosities and granulate carinae along lateral margin. Metanotum. Wider than mesonotum (1.87: 1.6); separated from fused mtg I+II by a slightly sinuate thin sulcus; laterad of median ridge with a pair of large subrectangular plates with irregular longitudinal callosities, lateral margins granulate like those of mesonotum. Abdomen. Mtg I and II completely fused, depressed at middle, there with a median thin longitudinal ridge laterally separated by deep furrows from wide oblique lateral plates, sloping posteriorly and sideways, further laterad with a pair of large subtriangular depressions; tergal plate subpentagonal, posterior margin truncate, lateral margins slightly rounded, median ridge slightly raised on mtg III, a pentagonal elevation on mtg IV, then tapering posteriorly; laterad of median ridge with the usual pattern of large and small callous spots; deltg II+III completely fused, deltg IV–VII separated by fine sulci; posterolateral angles of deltg VII slightly protruding, blunt; ptg VIII clavate, reaching to posterior margin of deltg VII; pygophore short and posteriorly rounded (Figs. 13–14); parameres slender (Figs. 15–17). Venter. Sterna III–VI raised along posterior margin, depressed along anterior border with triangular smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions and a pair of round callous spots of usual pattern; spiracles II ventral, III to IV sublateral and only partly faintly visible from above, V–VII lateral, placed on dorsally reflexed rim of vltg V–VII and visible from above, VIII terminal; vltg VII with shiny large oblique callus. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size. Head longer than wide across eyes (0.99: 0.82); length of antennal segments I to IV= 0.61: 0.37: 0.41: 0.31; pronotum wider than long (1.42: 0.54); width of mesonotum 1.84; width of metanotum 2.14; mtg VII slightly elevated posteriorly; posterolateral angles of deltg VII blunt, ptg VIII lobiform, shorter than tergite IX; spiracles II ventral, III to IV sublateral and only IV faintly visible from above, V to VII lateral and visible from above as in male, VIII terminal. Measurements (in mm, ♂ ♂ (n=3) / ♀♀ (n=4), holotype in parentheses). Body length 4.35–4.69 / 5.00–5.05 (4.69); maximal width of abdomen 2.18–2.18 / 2.62–2.65 (2.18). Head length 0.82–0.91 / 0.99–0.99 (0.91), width 0.75–0.78 / 0.82–0.82 (0.78). Pronotum length 0.51–0.51 / 0.54–0.54 (0.51), width 1.29–1.29 / 1.42–1.43 (1.29). Mesonotum width 1.60–1.60 / 1.84–1.87 (1.6). Metanotum width 1.87–1.90 / 2.14–2.14 (1.87). Length of antennal segments I–IV =0.54–0.58, 0.34–0.37, 0.41–0.41, 0.31–0.31 / 0.61–0.61, 0.37–0.37, 0.41–0.41, 0.31–0.31 (0.58, 0.37, 0.41, 0.31). Etymology. The specific name refers to the attenuated pronotum; it is formed from the Greek adjective stenos (narrow) and the latinized Greek noun notum (dorsal part of body); noun in apposition. Distribution. China (Hainan).

Rotundocoris obliquonotum Bai & Heiss, sp. nov. (Figs. 18–34) Type material. Holotype (♂): China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (IMNU). Paratypes: China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (2 ♂♂, IMNU); China, Hainan, Jianfeng, Chahekou, 217 m, 18.viii.2007, leg. X. S. Bai (3 ♂♂, 2 ♀♀, IMNU, CEHI); China, Hainan, Jianfeng, Beiganxian, 820 m, 9.viii.2007, leg. X. S. Bai (2 ♂♂ ♀, IMNU, CEHI); China, Hainan, Ledong, Jianfengling, 28.iv.2009, leg. Zhang & Yang (♀, IMNU); China, Hainan, Limu montain, 6.v.2008, leg. X. S. Bai (3 ♂♂, IMNU); China, Hainan, Jianfeng, Tianchi, 16.viii.2007, leg. Zhang & Bai (1 ♂ 1 ♀, CEHI); China, Hainan, Changjiang, Bawangling, 13.ix.2008, leg. W. J. Zhang (♀, CEHI); provided with type labels accordingly. Diagnosis. General aspect similar to Rotundocoris stenonotum sp. nov., but distinguished from the latter by wider pronotum 2.67 times as wide as long (2.53), anterolateral lobes widely rounded and protruding beyond collar (anterolateral angles produced and forming blunt lobes, reaching to anterior margin of collar); longer antennae 2.39 times as long as width of head (2.13); and across meso- and metanota medially with an elongate, subpentagonal bottle-shaped ridge with longitudinal sulcus (without longitudinal sulcus, smooth). Description of male. Head. Slightly longer than wide across eyes (0.92: 0.78); genae notched anteriorly, reaching about basal fourth of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.39 times as long as width of head across eyes, length of antennal segments I to IV= 0.61: 0.34: 0.58: 0.34; eyes small, convex; postocular tubercles small and not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 2.67 times as wide as long (1.36: 0.51), strongly attenuated anteriorly; collar narrow; anterolateral angles produced and forming rounded lobes, reaching slightly beyond collar; disc with a longitudinal median furrow, flanked by a pair of subtriangular plates which meet at anterior margin, disc laterad with a pair of large subtriangular plates with irregular callosities, granulate carinae laterally; posterior margin of pronotum slightly convex separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.67: 1.36); separated laterally from metanotum by very deep furrows; across meso- and metanota medially with an elongate, subpentagonal bottle-shaped ridge, 1.6 times as long as wide (0.82: 0.51), subrounded anteriorly and truncate posteriorly, smooth and with longitudinal sulcus; laterad of median ridge with a pair of subrectangular plates with irregular callosities and granulate carinae along lateral margin. Metanotum. Wider than mesonotum(1.94: 1.67); separated from fused mtg I+II by a straight thin sulcus; laterad of median ridge with a pair of large subrectangular plates with irregular longitudinal callosities, lateral margins granulate, similar to those of mesonotum. Abdomen. Mtg I and II completely fused, depressed at middle, there with a median thin longitudinal ridge laterally separated by broad deep furrows from wide oblique lateral plates, sloping posteriorly and sideways, further laterad with a pair of large subtriangular depressions; tergal plate subpentagonal, posterior margin truncate, lateral margins slightly rounded; with a slightly raised median thin ridge on mtg III, a pentagonal elevation on mtg IV then tapering posteriorly; laterad of median ridge with the usual pattern of large and small callous spots and smooth surface; deltg II+III completely fused, deltg IV–VII separated by fine sulci; posterolateral angles of deltg VII slightly protruding, blunt; ptg VIII clavate, not reaching to posteror margin of deltg VII; pygophore short and rounded (Figs. 30–31); parameres slender (Figs. 32–34). Venter. Sterna III to VI raised along posterior margin, depressed along anterior border with triangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions and a pair of round callous spots of usual pattern; spiracles II to IV ventral, IV only faintly visible from above, V to VII lateral, placed on dorsally reflexed rim of vltg V–VII and visible from above, VIII terminal; vltg VII with shiny large strong oblique callus. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size. Head longer than wide across eyes (1.09: 0.92); length of antennal segments I to IV= 0.65: 0.34: 0.58: 0.34; pronotum wider than long (1.67: 0.54); width of mesonotum 2.18; width of metanotum 2.55; mtg VII slightly elevated posteriorly; posterolateral angles of deltg VII blunt, ptg VIII lobiform, shorter than tergite IX.; spiracles II to IV ventral, IV only faintly visible from above, V to VII lateral and visible from above, VIII terminal. Measurements (in mm, ♂♂ (n=9) / ♀♀ (n=2), holotype in parentheses). Body length 4.32–4.85 / 5.5–5.65 (4.56); maximal width of abdomen 2.11–2.48 / 2.80–3.10 (2.28). Head length 0.82–0.92 / 1.02–1.09 (0.92), width 0.75–0.78 / 0.88–0.92 (0.78). Pronotum length 0.48–0.54 / 0.54–0.54 (0.51), width 1.26–1.46 / 1.67–1.67 (1.36). Mesonotum width 1.53–1.84 / 2.04–2.18 (1.67). Metanotum width 1.77–2.14 / 2.35–2.55 (1.94). Length of antennal segments I–IV = 0.54–0.65, 0.34–0.34, 0.51–0.58, 0.34–0.34 / 0.65–0.75, 0.34–0.37, 0.58–0.61, 0.34–0.37 (0.61, 0.34, 0.58, 0.34). Etymology. The specific name refers to the oblique pronotal margins; it is derived from the Latin adjective obliquus (inclined, slanting) and the latinized Greek noun notum (dorsal part of body); noun in apposition. Distribution. China (Hainan).

Rotundocoris obliquonotum Bai & Heiss, sp. nov. (Figs. 18���34) Type material. Holotype (♂): China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (IMNU). Paratypes: China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (2 ♂♂, IMNU); China, Hainan, Jianfeng, Chahekou, 217 m, 18.viii.2007, leg. X. S. Bai (3 ♂♂, 2 ♀♀, IMNU, CEHI); China, Hainan, Jianfeng, Beiganxian, 820 m, 9.viii.2007, leg. X. S. Bai (2 ♂♂ ♀, IMNU, CEHI); China, Hainan, Ledong, Jianfengling, 28.iv.2009, leg. Zhang & Yang (♀, IMNU); China, Hainan, Limu montain, 6.v.2008, leg. X. S. Bai (3 ♂♂, IMNU); China, Hainan, Jianfeng, Tianchi, 16.viii.2007, leg. Zhang & Bai (1 ♂ 1 ♀, CEHI); China, Hainan, Changjiang, Bawangling, 13.ix.2008, leg. W. J. Zhang (♀, CEHI); provided with type labels accordingly. Diagnosis. General aspect similar to Rotundocoris stenonotum sp. nov., but distinguished from the latter by wider pronotum 2.67 times as wide as long (2.53), anterolateral lobes widely rounded and protruding beyond collar (anterolateral angles produced and forming blunt lobes, reaching to anterior margin of collar); longer antennae 2.39 times as long as width of head (2.13); and across meso- and metanota medially with an elongate, subpentagonal bottle-shaped ridge with longitudinal sulcus (without longitudinal sulcus, smooth). Description of male. Head. Slightly longer than wide across eyes (0.92: 0.78); genae notched anteriorly, reaching about basal fourth of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.39 times as long as width of head across eyes, length of antennal segments I to IV= 0.61: 0.34: 0.58: 0.34; eyes small, convex; postocular tubercles small and not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 2.67 times as wide as long (1.36: 0.51), strongly attenuated anteriorly; collar narrow; anterolateral angles produced and forming rounded lobes, reaching slightly beyond collar; disc with a longitudinal median furrow, flanked by a pair of subtriangular plates which meet at anterior margin, disc laterad with a pair of large subtriangular plates with irregular callosities, granulate carinae laterally; posterior margin of pronotum slightly convex separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.67: 1.36); separated laterally from metanotum by very deep furrows; across meso- and metanota medially with an elongate, subpentagonal bottle-shaped ridge, 1.6 times as long as wide (0.82: 0.51), subrounded anteriorly and truncate posteriorly, smooth and with longitudinal sulcus; laterad of median ridge with a pair of subrectangular plates with irregular callosities and granulate carinae along lateral margin. Metanotum. Wider than mesonotum(1.94: 1.67); separated from fused mtg I+II by a straight thin sulcus; laterad of median ridge with a pair of large subrectangular plates with irregular longitudinal callosities, lateral margins granulate, similar to those of mesonotum. Abdomen. Mtg I and II completely fused, depressed at middle, there with a median thin longitudinal ridge laterally separated by broad deep furrows from wide oblique lateral plates, sloping posteriorly and sideways, further laterad with a pair of large subtriangular depressions; tergal plate subpentagonal, posterior margin truncate, lateral margins slightly rounded; with a slightly raised median thin ridge on mtg III, a pentagonal elevation on mtg IV then tapering posteriorly; laterad of median ridge with the usual pattern of large and small callous spots and smooth surface; deltg II+III completely fused, deltg IV���VII separated by fine sulci; posterolateral angles of deltg VII slightly protruding, blunt; ptg VIII clavate, not reaching to posteror margin of deltg VII; pygophore short and rounded (Figs. 30���31); parameres slender (Figs. 32���34). Venter. Sterna III to VI raised along posterior margin, depressed along anterior border with triangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions and a pair of round callous spots of usual pattern; spiracles II to IV ventral, IV only faintly visible from above, V to VII lateral, placed on dorsally reflexed rim of vltg V���VII and visible from above, VIII terminal; vltg VII with shiny large strong oblique callus. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size. Head longer than wide across eyes (1.09: 0.92); length of antennal segments I to IV= 0.65: 0.34: 0.58: 0.34; pronotum wider than long (1.67: 0.54); width of mesonotum 2.18; width of metanotum 2.55; mtg VII slightly elevated posteriorly; posterolateral angles of deltg VII blunt, ptg VIII lobiform, shorter than tergite IX.; spiracles II to IV ventral, IV only faintly visible from above, V to VII lateral and visible from above, VIII terminal. Measurements (in mm, ♂♂ (n=9) / ♀♀ (n=2), holotype in parentheses). Body length 4.32���4.85 / 5.5���5.65 (4.56); maximal width of abdomen 2.11���2.48 / 2.80���3.10 (2.28). Head length 0.82���0.92 / 1.02���1.09 (0.92), width 0.75���0.78 / 0.88���0.92 (0.78). Pronotum length 0.48���0.54 / 0.54���0.54 (0.51), width 1.26���1.46 / 1.67���1.67 (1.36). Mesonotum width 1.53���1.84 / 2.04���2.18 (1.67). Metanotum width 1.77���2.14 / 2.35���2.55 (1.94). Length of antennal segments I���IV = 0.54���0.65, 0.34���0.34, 0.51���0.58, 0.34���0.34 / 0.65���0.75, 0.34���0.37, 0.58���0.61, 0.34���0.37 (0.61, 0.34, 0.58, 0.34). Etymology. The specific name refers to the oblique pronotal margins; it is derived from the Latin adjective obliquus (inclined, slanting) and the latinized Greek noun notum (dorsal part of body); noun in apposition. Distribution. China (Hainan)., Published as part of Qian, Hongge, Bai, Xiaoshuan, Heiss, Ernst, Liu, Aiping & Cai, Wanzhi, 2019, Rotundocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae), pp. 526-534 in Zootaxa 4623 (3) on pages 530-531, DOI: 10.11646/zootaxa.4623.3.4, http://zenodo.org/record/3258627

A new apterous genus, Rotundocoris gen. nov., and two included new species, R. stenonotum sp. nov. and R. obliquonotum sp. nov. (Hemiptera: Heteroptera: Aradidae: Carventinae), are described from Hainan, China. The diagnostic morphological features of the genus and its two species are discussed and illustrated.

Bai, Xiaoshuan, Heiss, Ernst, Cai, Wanzhi (2019): Neocrassocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae). Zootaxa 4612 (1): 95-102, DOI: https://doi.org/10.11646/zootaxa.4612.1.6

Neocrassocoris pingbianensis sp. nov. (Figs. 1–17) Type material. Holotype (♂): China, Yunnan, Pingbian, Daweishan, 24.v.2009, leg. X.S. Bai (IMNU). Paratypes: (23 ♂♂ 14 ♀♀): China, Yunnan, Pingbian, Daweishan, 24.v.2009, leg. X.S. Bai (IMNU); (2 ♂♂ 3 ♀♀): China, Yunnan, Pingbian, Daweishan, 1333 m, N22°59.045’, E103°41.072’, 23.v.2009, leg. X.S. Bai (CEHI); all provided with type labels. Description of male. Head. Longer than wide across eyes (1.02: 0.83); genae slightly notched anteriorly, reaching basal one-fourth of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.47 times as long as width of head across eyes, length of antennal segments I to IV= 0.66: 0.33: 0.73: 0.33; eyes small, convex; postocular tubercles small and not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with irregular carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 3.02 times as wide as long (1.48: 0.49), attenuated anteriorly; collar smooth and about as thick as diameter of first antennal segment (0.2: 0.17); anterolateral angles produced and forming blunt lobes; disc with a longitudinal median furrow, flanked by a pair of subtriangular plates which meet at anterior margin; laterally of plates disc with four (2+2) tuberculate callosities; laterally of callosities with a pair of subrectangular plates with strongly elevated granulate carinae; posterior margin of pronotum slightly convex separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.91: 1.48); separated from metanotum by a pair of very deep furrows; elongate subpentagonal median ridge across meso- and metanotum flanked by deep furrows and subtriangular plates with four (2+2) longitudinal callosities and granulate carinae along lateral margin. Metanotum and mtg I+II. Wider than mesonotum (2.15: 1.91); median ridge flanked by a pair of deep oval excavations, laterally with a pair of oval plates with irregular longitudinal callosities, lateral margins granulate, like those of mesonotum; disc of mtg I with a pair of deep oval depressions sloping anterolaterally; disc of mtg II with a pair of deep furrows, sloping posteriorly and sideways, posterior margin carinate. Abdomen.Tergal plate consisting of mtg III–VI, subquadrangular, posterior margin truncate, lateral margins slightly rounded; with a slightly raised median ridge on mtg III, a pentagonal elevation on mtg IV then tapering posteriorly; laterad of median ridge with usual pattern of large and small callous spots; deltg II+III completely fused, IV–VII separated by fine sulci; posterolateral angles formed by dorsally reflexed vltg II–VII progressively protruding; posterolateral angle of deltg VII subangulate; ptg VIII clavate, reaching to posterior margin of deltg VII; pygophore cordate (Figs.13–14); parameres slender (Figs.15–17). Venter. Sterna III to VI raised along posterior margin, depressed along anterior border, and with triangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions, these bearing a pair of round callous spots of usual pattern; spiracles II to VII lateral and visible from above, VIII terminal; lateral rim of male vltg VII with a shiny callus anterior to spiracle VII. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size. Head longer than wide across eyes (1.16: 0.92); length of antennal segments I to IV= 0.72: 0.36: 0.86: 0.36; pronotum wider than long (1.75: 0. 63); width of mesonotum 2.18; width of metanotum 2.51; across meso- and metanota median ridge strongly posteriorly elevated, irregularly rugose; mtg VII strongly elevated posteriorly; posterolateral angles of deltg VII blunt, ptg VIII lobiform, shorter than tergite IX; spiracles II to VII lateral and visible from above, VIII terminal. Measurements [in mm, ♂♂ (n=24) / ♀♀ (n=14), holotype in parentheses]. Body length 5.1–5.5 / 5.9–6.7 (5.3); maximal width of abdomen 2.4–2.6 / 3.0–3.13 (2.6). Head length 0.99–1.06 / 1.09–1.19 (1.02), width 0.83– 0.86 / 0.89–0.96 (0.83). Pronotum length 0.49–0.53 / 0.56–0.59 (0.49), width 1.45–1.58 / 1.72–1.75 (1.48). Mesonotum width 1.85–1.98 / 2.18–2.21 (1.91). Metanotum width 2.01–2.24 / 2.47–2.54 (2.15). Length of antennal segments I–IV =0.66, 0.33, 0.73–0.76, 0.33 / 0.72, 0.36, 0.79–0.86, 0.36 (0.66, 0.33, 0.73, 0.33). Etymology. The specific name refers to the type locality. Distribution. China (Yunnan).

Neocrassocoris pingbianensis sp. nov. (Figs. 1���17) Type material. Holotype (♂): China, Yunnan, Pingbian, Daweishan, 24.v.2009, leg. X.S. Bai (IMNU). Paratypes: (23 ♂♂ 14 ♀♀): China, Yunnan, Pingbian, Daweishan, 24.v.2009, leg. X.S. Bai (IMNU); (2 ♂♂ 3 ♀♀): China, Yunnan, Pingbian, Daweishan, 1333 m, N22��59.045���, E103��41.072���, 23.v.2009, leg. X.S. Bai (CEHI); all provided with type labels. Description of male. Head. Longer than wide across eyes (1.02: 0.83); genae slightly notched anteriorly, reaching basal one-fourth of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.47 times as long as width of head across eyes, length of antennal segments I to IV= 0.66: 0.33: 0.73: 0.33; eyes small, convex; postocular tubercles small and not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with irregular carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 3.02 times as wide as long (1.48: 0.49), attenuated anteriorly; collar smooth and about as thick as diameter of first antennal segment (0.2: 0.17); anterolateral angles produced and forming blunt lobes; disc with a longitudinal median furrow, flanked by a pair of subtriangular plates which meet at anterior margin; laterally of plates disc with four (2+2) tuberculate callosities; laterally of callosities with a pair of subrectangular plates with strongly elevated granulate carinae; posterior margin of pronotum slightly convex separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.91: 1.48); separated from metanotum by a pair of very deep furrows; elongate subpentagonal median ridge across meso- and metanotum flanked by deep furrows and subtriangular plates with four (2+2) longitudinal callosities and granulate carinae along lateral margin. Metanotum and mtg I+II. Wider than mesonotum (2.15: 1.91); median ridge flanked by a pair of deep oval excavations, laterally with a pair of oval plates with irregular longitudinal callosities, lateral margins granulate, like those of mesonotum; disc of mtg I with a pair of deep oval depressions sloping anterolaterally; disc of mtg II with a pair of deep furrows, sloping posteriorly and sideways, posterior margin carinate. Abdomen.Tergal plate consisting of mtg III���VI, subquadrangular, posterior margin truncate, lateral margins slightly rounded; with a slightly raised median ridge on mtg III, a pentagonal elevation on mtg IV then tapering posteriorly; laterad of median ridge with usual pattern of large and small callous spots; deltg II+III completely fused, IV���VII separated by fine sulci; posterolateral angles formed by dorsally reflexed vltg II���VII progressively protruding; posterolateral angle of deltg VII subangulate; ptg VIII clavate, reaching to posterior margin of deltg VII; pygophore cordate (Figs.13���14); parameres slender (Figs.15���17). Venter. Sterna III to VI raised along posterior margin, depressed along anterior border, and with triangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions, these bearing a pair of round callous spots of usual pattern; spiracles II to VII lateral and visible from above, VIII terminal; lateral rim of male vltg VII with a shiny callus anterior to spiracle VII. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size. Head longer than wide across eyes (1.16: 0.92); length of antennal segments I to IV= 0.72: 0.36: 0.86: 0.36; pronotum wider than long (1.75: 0. 63); width of mesonotum 2.18; width of metanotum 2.51; across meso- and metanota median ridge strongly posteriorly elevated, irregularly rugose; mtg VII strongly elevated posteriorly; posterolateral angles of deltg VII blunt, ptg VIII lobiform, shorter than tergite IX; spiracles II to VII lateral and visible from above, VIII terminal. Measurements [in mm, ♂♂ (n=24) / ♀♀ (n=14), holotype in parentheses]. Body length 5.1���5.5 / 5.9���6.7 (5.3); maximal width of abdomen 2.4���2.6 / 3.0���3.13 (2.6). Head length 0.99���1.06 / 1.09���1.19 (1.02), width 0.83��� 0.86 / 0.89���0.96 (0.83). Pronotum length 0.49���0.53 / 0.56���0.59 (0.49), width 1.45���1.58 / 1.72���1.75 (1.48). Mesonotum width 1.85���1.98 / 2.18���2.21 (1.91). Metanotum width 2.01���2.24 / 2.47���2.54 (2.15). Length of antennal segments I���IV =0.66, 0.33, 0.73���0.76, 0.33 / 0.72, 0.36, 0.79���0.86, 0.36 (0.66, 0.33, 0.73, 0.33). Etymology. The specific name refers to the type locality. Distribution. China (Yunnan)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2019, Neocrassocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae), pp. 95-102 in Zootaxa 4612 (1) on pages 96-99, DOI: 10.11646/zootaxa.4612.1.6, http://zenodo.org/record/3233646

Neocrassocoris gen. nov. Type species. Neocrassocoris pingbianensis sp. nov. Diagnosis. Apterous, of medium size (5.1���6.7 mm), body elongate oval; coloration reddish to blackish brown, surface rough, granulate and rugose; legs and antennae with setigerous tubercles; thoracic segments fused to mtg I+II, a median longitudinal ridge reaching from pronotum to meso- and metanotum is followed by a deep furrow on fused mtg I+II, fusion line between metanotum and mtg I+II marked by a suture, mtg III to VI fused into a subquadrangular tergal plate; spiracles II���VII lateral and visible from above; deltg VII of male with a shiny sublateral callus on lateral rim. Neocrassocoris gen. n. resembles Paracrassocoris Bai, Heiss & Cai, 2018 from Yunnan Province of China sharing basic habitus. It is distinguished from the latter genus by a set of morphological features: median longitudinal ridge along meso- and metanotum smooth without longitudinal sulcus, irregularly rugose posteriorly; median deep furrow on fused mtg I+II without a longitudinal carina on bottom; mtg III to VI fused into a subquadrangular tergal plate; spiracles II���VII lateral and visible from above; presence of a shiny callus on male deltg VII (vs. median longitudinal ridge along meso- and metanotum with a longitudinal sulcus; median deep furrow on fused mtg I+II with a longitudinal carina on bottom; mtg III to VI fused into a subpentagonal tergal plate; spiracles II���IV ventral, V���VII lateral and visible from above and callus lacking in Paracrassocoris). Description. Head. Longer than wide across eyes; genae slender, short; antenniferous tubercles stout, conical, apically pointed; antennae long and slender, first segment stout and clavate, longer than second, latter cylindrical, third longer than first and cylindrical, fourth fusiform as long as second; eyes small, semiglobose, with convex face; postocular tubercles small and not reaching outer margin of eyes, converging posteriorly to constricted neck; rostrum arising from a slit-like atrium not reaching limits of rostral groove. Thorax and mtg I+II. Pronotum attenuated anteriorly, anterolateral angles produced and forming blunt or rounded lobes, slightly protruding beyond collar, disc with a median groove, separated from mesonotum by a transverse intersegmental furrow; meso- and metanotum separated only laterally of elevated median smooth elongate triangular ridge, this without longitudinal sulcus, irregularly rugose posteriorly; lateral sclerites with longitudinal elevations; metanotum separated from fused mtg I+II by a narrow transverse sulcus; mtg I+II completely fused, with a deep median groove flanked by a pair of oblique longitudinal ridges and rugosities. Abdomen. Mtg III to VI fused into a subquadrangular tergal plate, elevated along midline with usual pattern of large and small callous spots and dots; mtg VII strongly elevated posteriorly in male and female; deltg II+III completely fused, spiracles II���VII lateral and visible from above; pygophore cordate; paratergites VIII clavate or lobiform. Venter. Prosternum raised and with a Y-shaped carina at middle, flanked by a pair of depressions; meso- and metasterna fused, flattened medially with a deep and wide round depression marking segmental borders; spiracle VIII terminal on ptg VIII; rim of male vltg VII laterally with a small shiny callus. Legs. Long and slender, without spines, preapical comb on fore tibia present, femora subcylindrical, claws with fine pulvilli. Etymology. The generic name is formed by the Greek prefix neo - (meaning ���new���) and the generic name Crassocoris, reflecting the similarity of the two genera and also the closely related Paracrassocoris. Distribution. China (Yunnan)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2019, Neocrassocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae), pp. 95-102 in Zootaxa 4612 (1) on pages 95-96, DOI: 10.11646/zootaxa.4612.1.6, http://zenodo.org/record/3233646

Neocrassocoris gen. nov. Type species. Neocrassocoris pingbianensis sp. nov. Diagnosis. Apterous, of medium size (5.1–6.7 mm), body elongate oval; coloration reddish to blackish brown, surface rough, granulate and rugose; legs and antennae with setigerous tubercles; thoracic segments fused to mtg I+II, a median longitudinal ridge reaching from pronotum to meso- and metanotum is followed by a deep furrow on fused mtg I+II, fusion line between metanotum and mtg I+II marked by a suture, mtg III to VI fused into a subquadrangular tergal plate; spiracles II–VII lateral and visible from above; deltg VII of male with a shiny sublateral callus on lateral rim. Neocrassocoris gen. n. resembles Paracrassocoris Bai, Heiss & Cai, 2018 from Yunnan Province of China sharing basic habitus. It is distinguished from the latter genus by a set of morphological features: median longitudinal ridge along meso- and metanotum smooth without longitudinal sulcus, irregularly rugose posteriorly; median deep furrow on fused mtg I+II without a longitudinal carina on bottom; mtg III to VI fused into a subquadrangular tergal plate; spiracles II–VII lateral and visible from above; presence of a shiny callus on male deltg VII (vs. median longitudinal ridge along meso- and metanotum with a longitudinal sulcus; median deep furrow on fused mtg I+II with a longitudinal carina on bottom; mtg III to VI fused into a subpentagonal tergal plate; spiracles II–IV ventral, V–VII lateral and visible from above and callus lacking in Paracrassocoris). Description. Head. Longer than wide across eyes; genae slender, short; antenniferous tubercles stout, conical, apically pointed; antennae long and slender, first segment stout and clavate, longer than second, latter cylindrical, third longer than first and cylindrical, fourth fusiform as long as second; eyes small, semiglobose, with convex face; postocular tubercles small and not reaching outer margin of eyes, converging posteriorly to constricted neck; rostrum arising from a slit-like atrium not reaching limits of rostral groove. Thorax and mtg I+II. Pronotum attenuated anteriorly, anterolateral angles produced and forming blunt or rounded lobes, slightly protruding beyond collar, disc with a median groove, separated from mesonotum by a transverse intersegmental furrow; meso- and metanotum separated only laterally of elevated median smooth elongate triangular ridge, this without longitudinal sulcus, irregularly rugose posteriorly; lateral sclerites with longitudinal elevations; metanotum separated from fused mtg I+II by a narrow transverse sulcus; mtg I+II completely fused, with a deep median groove flanked by a pair of oblique longitudinal ridges and rugosities. Abdomen. Mtg III to VI fused into a subquadrangular tergal plate, elevated along midline with usual pattern of large and small callous spots and dots; mtg VII strongly elevated posteriorly in male and female; deltg II+III completely fused, spiracles II–VII lateral and visible from above; pygophore cordate; paratergites VIII clavate or lobiform. Venter. Prosternum raised and with a Y-shaped carina at middle, flanked by a pair of depressions; meso- and metasterna fused, flattened medially with a deep and wide round depression marking segmental borders; spiracle VIII terminal on ptg VIII; rim of male vltg VII laterally with a small shiny callus. Legs. Long and slender, without spines, preapical comb on fore tibia present, femora subcylindrical, claws with fine pulvilli. Etymology. The generic name is formed by the Greek prefix neo - (meaning “new”) and the generic name Crassocoris, reflecting the similarity of the two genera and also the closely related Paracrassocoris. Distribution. China (Yunnan).

Re-examination of type specimens ofLibiocorisKormilev 1957,L.poecilusfrom New Guinea and other taxa assigned to this genus, the ChineseLibiocorisheissiBai, Yang & Cai, 2006 andLibiocorissinensisBai, Yang & Cai, 2006 proved to be synonyms, thusL.heissi=L.sinensissyn. n. They are, however, different fromLibiocorisKormilev, 1957 to which they were originally assigned and a new genusParalibiocorisgen. n.is proposed for them. ThereforeParalibiocorisheissicomb. n. =LibiocorisheissiBai et al., 2006 =LibiocorissinensisBai et al., 2006, syn. n. From Hainan Island, China, the following new species,P.roundangulussp. n.,P.hainanensissp. n., andP.limuensissp. n., are described and figured and a key to species is provided.

Based on new topotypical material, the apterous carventine genus Crassocoris Bai, Heiss & Cai, 2007 (Hemiptera: Heteroptera: Aradidae) with the type species C. hsiaoi Bai, Heiss & Cai, 2007, is redescribed. A new, closely related apterous genus and species, Paracrassocoris hekouensis gen. nov., sp. nov. is described from Hainan, China. The diagnostic morphological features of both taxa are described and illustrated.

Paracrassocoris gen. nov. Type species. Paracrassocoris hekouensis sp. nov. Diagnosis. Apterous, of medium size, body elongate ovate; coloration blackish brown, surface glabrous; lateral margins of body, legs and antennae with setigerous tubercles; thoracic segments fused to mtg I+II, a median longitudinal ridge along meso- and metanotum is followed by a deep furrow with a median carina on fused mtg I+II; spiracles II���IV ventral, V���VII lateral and visible from above. Paracrassocoris gen. nov. resembles Crassocoris, it is however distinguished from the latter genus by a set of morphological features: longer head, lateral margins of pronotum attenuated with acute anterolateral angles, median depression of mtg I+II narrow with a longitudinal carina (vs. shorter postocular portion of head, pronotal lobes subrectangular, anterolateral angles subangular, median depression on mtg I+II widening posteriorly with an inverted Y-shaped carina); pygophore shorter (vs. longer). Description. Head. Longer than wide across eyes; genae slender, short; antenniferous tubercles stout, conical, apically pointed; eyes small, semiglobose, with convex face; postocular tubercles small and not reaching outer margin of eyes; converging posteriorly to constricted neck; antennae long and slender, first segment stout and clavate twice as long as second, the latter shortest and cylindrical, third longest and cylindrical, fourth fusiform; rostrum arising from a slit-like opening not reaching limits of rostral groove. Thorax and mtg I+II. Pronotum attenuated anteriorly, anterolateral angles produced and acute, tuberculate, not protruding beyond collar, disc with medial groove; meso- metanota separated only laterally, the median subpentagonal ridge with a longitudinal sulcus; metanotum laterally of median ridge deeply excavated, separated from mtg I and II by thin furrows; lateral margins of thorax doubled and incrassate with deep cleft between pro-, meso-, and metanota; mtg I+II fused, with a deep median groove with a thin longitudinal carina flanked by a pair of oblique elevated ridges and rugosities. Abdomen. Mtg III���VI fused to a subpentagonal tergal plate, elevated on median line, and with usual pattern of large and small callous spots and dots; mtg VII strongly elevated posteriorly in male and female; deltg II+III completely fused, spiracles II���IV ventral, V���VII lateral on dorsally reflexed vltg V���VII and visible from above. Venter. Prosternum raised and with Y-shaped carina at middle, flanked by a pair of depressions; meso- and metasterna fused, flattened medially with a deep and wide transversal depression marking the segmental borders. Etymology. The generic name is formed from the Greek prefix ���para-��� = near to and the generic name Crassocoris, reflecting the similarity of the two genera. Distribution. China (Yunnan)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2018, Reconsideration of the apterous carventine genus Crassocoris and description of Paracrassocoris gen. nov. from China (Hemiptera: Heteroptera: Aradidae), pp. 537-546 in Zootaxa 4455 (3) on page 542, DOI: 10.11646/zootaxa.4455.3.9, http://zenodo.org/record/1457527

Paracrassocoris hekouensis sp. nov. (Figs. 24–38) Type material. Holotype (♀): China, Yunnan, Hekou, Nanxi, 132 m, 22°40'596'' N 103°56' 518''E, 21.v.2009, leg. X.S. Bai (IMNU). Paratypes: (♂, damaged abdomen) China, Yunnan, Hekou, Nanxi, 132 m, 22°40'596'' N 103°56' 518''E, 21.v.2009, leg. X.S. Bai (IMNU); (♀) China, Yunnan, Hekou, Nanxi, 132 m, 22°40'596'' N 103°56' 518''E, 21.v.2009, leg. X.S. Bai (IMNU). These specimens are provided with type labels accordingly. Description of female. Head. Longer than wide across eyes (1.2/0.93); genae slightly notched anteriorly, reaching basal one-fourth of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 3.16 times as long as width of head across eyes, relative length of antennal segments I to IV= 0.93/0.43/1.17/0.47; eyes small, convex; postocular tubercles small and not reaching outer margin of antenniferous tubercles, postocular lobes strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 2.67 times as wide as long (1.6/0.6), attenuated anteriorly; collar thick, longer than width of first antennal segment (0.2/0.17); anterolateral angles acute, produced; disc with a median sulcus, flanked by a pair of subtriangular plates which meet at anterior margin; laterad of plates disc with a pair of subquadrangular plates with irregular callosities, conical tubercles and granulate carinae laterally; posterior margin of pronotum slightly convex separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (2.1/1.6); separated from metanotum by a pair of very deep furrows laterally; across meso- and metanota medially with an elongate ridge flanked by deep furrows and subtriangular and oval plates with irregular callosities and high granulated carinae along lateral margin. Metanotum and mtg I+II. Wider than mesonotum (2.73/2.1); median ridge flanked by a pair of deep oval excavations, laterad of with two pairs of oval plates and high granulated carinae along lateral margin; mtg I with a pair of high oblique transverse ridges sloping anterolaterally, separated at middle by a deep depression with a median carina; mtg II wide, disc with a pair of oblique deep furrows, sloping posteriorly and sideways, posterior margin carinate. Abdomen. Tergal plate consisting of mtg III–VI, subpentagonal; posterior margin truncate, lateral margins slightly rounded; median carina raised on mtg III, elevated on mtg IV–VI then sloping; dorsal scent gland openings distinct; laterad of median ridge with the usual pattern of large and small callous spots; deltg II+III completely fused, IV–VII separated by fine sulci; posterolateral angles formed by the dorsally reflexed vltg II–VII progressively protruding and bearing visible spiracles V–VII; ptg VIII clavate shorter than tergite IX. Venter. Sterna III to VI raised along posterior margin, depressed along anterior border, and with triangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions, these bearing a pair of round callous spots of usual pattern; spiracles II to IV ventral, V to VII lateral and visible from above, VIII terminal. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Male. Morphological structures as of female but of smaller size. Head longer than wide across eyes (1.1/0.83); relative length of antennal segments I to IV= 0.8/0.4/1.0/0.47; pronotum wider than long (1.37/0.57); width of mesonotum 1.77; width of metanotum 2.27; mtg VII strongly elevated posteriorly; posterolateral angles of deltg VII rectangular, ptg VIII clavate, shorter than posteriorly constricted cordate pygophore (Figs. 34,35); parameres slender (Figs. 36-38). Measurements [ in mm, ♂ (n=1) / ♀ (n=2), holotype in parentheses ]. Body length 5.9 / 6.85–6.95(6.85); maximal width of abdomen 2.55 / 3.15–3.35 (3.35). Head length 1.1 / 1.25 (1.20), width 0.85 / 0.9–0.95 (0.93). Pronotum length 0.55 / 0.6–0.65 (0.6), width 1.35 / 1.6–1.65 (1.6). Mesonotum width 1.75 / 2.15 (2.1). Metanotum width 2.3 / 2.7–2.75 (2.73). Length of antennal segments I–IV =0.8, 0.4, 1.0, 0.45 / 0.85–0.95, 0.4–0.45, 1.1–1.15, 0.45–0.5 (0.93, 0.43, 1.17, 0.47). Etymology. The specific name refers to the type locality. Distribution. China (Yunnan).

Crassocoris Bai, Heiss & Cai, 2007 Type species. Crassocoris hsiaoi Bai, Heiss & Cai, 2007 (by original designation). Revised diagnosis. Apterous, medium sized; body elongate ovate; coloration uniformly dark reddish to blackish brown, glabrous, lateral margins, legs and antennae with setigerous tubercles. Thoracic segments fused to mtg I+II, a median longitudinal ridge along meso- and metanotum is followed by a depression on fused mtg I+II flanked by a pair of transverse ridges on mtg I; spiracles II���IV ventral, V���VII lateral and visible from above. Crassocoris resembles Morphocoris Kormilev, 1980 (Fig. 23) and Paramorphocoris Bai & Heiss, 2015 (Figs. 18���22) in general body plan, structure of fused thoracic segments with a median ridge and shares the position of spiracles. However, the pronotum is subrectangular, anterolateral angles not protruding (vs. pronotum attenuated anteriorly, anterolateral angles produced forward beyond collar in Morphocoris and Paramorphocoris); median ridge of mesonotum with a longitudinal sulcus (vs. median ridge of mesonotum without longitudinal sulcus in Morphocoris). The median depression on mtg I+II is shallow and widening posteriorly with an inverted Y-shaped carina (vs. deeply excavated in Morphocoris and narrow with a longitudinal carina in Paramorphocoris)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2018, Reconsideration of the apterous carventine genus Crassocoris and description of Paracrassocoris gen. nov. from China (Hemiptera: Heteroptera: Aradidae), pp. 537-546 in Zootaxa 4455 (3) on page 538, DOI: 10.11646/zootaxa.4455.3.9, http://zenodo.org/record/1457527, {"references":["Bai, X., Heiss, E. & Cai, W. (2007) A new apterous genus and species of Carventinae from China (Heteroptera: Aradidae). Linzer Biologische Beitrage, 39, 45 - 50.","Cui, J., Bai, X., Heiss, E. & Cai, W. (2015) A new apterous genus of Carventinae (Hemiptera: Aradidae) from China. Zootaxa, 3980 (1), 143 - 146. https: // doi. org / 10.11646 / zootaxa. 3980.1.9"]}

Paracrassocoris gen. nov. Type species. Paracrassocoris hekouensis sp. nov. Diagnosis. Apterous, of medium size, body elongate ovate; coloration blackish brown, surface glabrous; lateral margins of body, legs and antennae with setigerous tubercles; thoracic segments fused to mtg I+II, a median longitudinal ridge along meso- and metanotum is followed by a deep furrow with a median carina on fused mtg I+II; spiracles II–IV ventral, V–VII lateral and visible from above. Paracrassocoris gen. nov. resembles Crassocoris, it is however distinguished from the latter genus by a set of morphological features: longer head, lateral margins of pronotum attenuated with acute anterolateral angles, median depression of mtg I+II narrow with a longitudinal carina (vs. shorter postocular portion of head, pronotal lobes subrectangular, anterolateral angles subangular, median depression on mtg I+II widening posteriorly with an inverted Y-shaped carina); pygophore shorter (vs. longer). Description. Head. Longer than wide across eyes; genae slender, short; antenniferous tubercles stout, conical, apically pointed; eyes small, semiglobose, with convex face; postocular tubercles small and not reaching outer margin of eyes; converging posteriorly to constricted neck; antennae long and slender, first segment stout and clavate twice as long as second, the latter shortest and cylindrical, third longest and cylindrical, fourth fusiform; rostrum arising from a slit-like opening not reaching limits of rostral groove. Thorax and mtg I+II. Pronotum attenuated anteriorly, anterolateral angles produced and acute, tuberculate, not protruding beyond collar, disc with medial groove; meso- metanota separated only laterally, the median subpentagonal ridge with a longitudinal sulcus; metanotum laterally of median ridge deeply excavated, separated from mtg I and II by thin furrows; lateral margins of thorax doubled and incrassate with deep cleft between pro-, meso-, and metanota; mtg I+II fused, with a deep median groove with a thin longitudinal carina flanked by a pair of oblique elevated ridges and rugosities. Abdomen. Mtg III–VI fused to a subpentagonal tergal plate, elevated on median line, and with usual pattern of large and small callous spots and dots; mtg VII strongly elevated posteriorly in male and female; deltg II+III completely fused, spiracles II–IV ventral, V–VII lateral on dorsally reflexed vltg V–VII and visible from above. Venter. Prosternum raised and with Y-shaped carina at middle, flanked by a pair of depressions; meso- and metasterna fused, flattened medially with a deep and wide transversal depression marking the segmental borders. Etymology. The generic name is formed from the Greek prefix ‘para-’ = near to and the generic name Crassocoris, reflecting the similarity of the two genera. Distribution. China (Yunnan).

Crassocoris hsiaoi Bai, Heiss & Cai, 2007 (Figs. 1���17) Type material. Holotype (♀): China, Hainan, Baisha, Yinggeling, 1050 m, 10.ix.2005, leg. L.S. Chen (IMNU). Other material examined. (♂) China, Hainan, Baisha, Yinggeling, 1200 m, 23.x.2007, leg. W.J. Zhang; (♂) China, Hainan, Jianfengling, Nanya, 644 m, 22.viii.2007, leg. X.S. Bai; (♀) China, Hainan, Baisha, Yinggeling, 1200 m, 23.x.2007, leg. W.J. Zhang; (2♀♀) China, Hainan, Jianfengling, Tianchi, 810 m, 16.viii.2007, leg. Bai & Zhang (IMNU, CEHI); (♂) Baisha, Yinggeling, 950 m, 2.viii.2007, leg. X.S. Bai (CEHI). Redescription of female holotype. Head. Longer than wide across eyes (1.27/1.0); genae slightly notched anteriorly, nearly reaching basal half of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.4 times as long as width of head across eyes, length of antennal segments I to IV= 0.77/0.37/0.83/0.43; eyes small, convex; postocular tubercles small and not reaching outer margin of eyes, postocular borders constricted posteriorly; vertex with Y-shaped granulate carinae flanked by a pair of large, ovate infraocular callosities; rostrum short, rostral groove narrow, deep, closed posteriorly. Pronotum. 2.61 times as wide as long (1.57/0.6), subrectangular; collar narrow; anterolateral angles not produced; disc with median sulcus, flanked by a pair of subtriangular plates which meet at anterior margin; laterad of plates disc with a pair of oval structures, conical tubercles and granulate carinae; posterior margin of pronotum slightly convex, separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (2.17/1.57); separated from metanotum by a pair of very deep furrows laterally; across meso- and metanotum extends medially an elongate ridge with a longitudinal sulcus, constricted at the level of fusion line of meso-metanotum; laterad of median ridge disc with oval longitudinally carinate sclerites; posterolateral angles lobulately produced. Metanotum and mtg I+II. Wider than mesonotum (2.73/2.23); median ridge flanked by a pair of deep oval depressions, laterad of depressions with two pairs of longitudinal sclerites, further laterad with high granulate carinae; posterolateral angles rounded; mtg I with a pair of high transverse ridges, separated medially by a posteriorly, on mtg II widening deep depression with an inverted Y-shaped carina; laterad of ridges with a pair of triangular deep depressions; mtg II wide, sloping posteriorly and sideways, posterior margins carinate. Abdomen. Tergal plate consisting of mtg III���VI; anterior margin slightly produced medially, posterior margin straight, lateral borders slightly rounded; median elevation narrow and constricted on mtg III, strongly elevated on mtg IV, tapering posteriorly to mtg V���VI; dorsal scent gland openings discernible; surface laterad of median ridge with the usual pattern of large and small callous spots; deltg II���III completely fused, deltg IV���VII separated by fine sulci, the posterolateral angles formed by the dorsally reflexed vltg II���VII progressively protruding and bearing visible spiracles V���VII; ptg VIII clavate reaching basal four-fifth of segment IX. Venter. Pro-, meso- and metasternum fused and flattened medially with a pit-like round impression, sterna III to VI raised along posterior margin, depressed along anterior margin, with triangular smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions, these bearing a pair of round callous spots; more laterad two pairs of smaller round callous spots; spiracles II to IV ventral, V to VII lateral and visible from above, VIII terminal. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Male. Morphological features as of female, but of smaller size; head longer than width across eyes (1.07/0.87); length of antennal segments I to IV= 0.73/0.33/0.8/0.37; pronotum wider than long (1.33/0.5); width of mesonotum 1.8; width of metanotum 2.26; mtg VII strongly elevated posteriorly; posterolateral angles of deltg VII triangularly produced, vltg VII laterally with a glabrous round tubercle between spiracle VII and suture deltg VI���VII which is visible from above; ptg VIII clavate, shorter than cordate posteriorly elongated pygophore (Figs. 13, 14). Measurements [ in mm, ♂ (n=2) / ♀ (n=3), holotype in parentheses ]. Body length 5.4���5.55 / 5.65���6.0 (6.8); maximal width of abdomen 2.5���2.55 / 2.9���3.0 (3.4). Head length 1.1���1.15 / 1.1���1.15 (1.27), width 0.85���0.9 / 0.9���0.95 (1.0). Pronotum length 0.5���0.55 / 0.5���0.55 (0.65), width 1.3���1.45 / 1.35���1.55 (1.57). Mesonotum width 1.8���1.85 / 1.9���2.05 (2.17). Metanotum width 2.25���2.3 / 2.4���2.6 (2.73). Length of antennal segments I���IV =0.7���0.75, 0.3���0.35, 0.8, 0.35���0.4 / 0.7, 0.3, 0.75, 0.35 (0.77, 0.37, 0.83, 0.43). Distribution. China (Hainan Island)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2018, Reconsideration of the apterous carventine genus Crassocoris and description of Paracrassocoris gen. nov. from China (Hemiptera: Heteroptera: Aradidae), pp. 537-546 in Zootaxa 4455 (3) on pages 538-542, DOI: 10.11646/zootaxa.4455.3.9, http://zenodo.org/record/1457527, {"references":["Bai, X., Heiss, E. & Cai, W. (2007) A new apterous genus and species of Carventinae from China (Heteroptera: Aradidae). Linzer Biologische Beitrage, 39, 45 - 50."]}

Paracrassocoris hekouensis sp. nov. (Figs. 24���38) Type material. Holotype (♀): China, Yunnan, Hekou, Nanxi, 132 m, 22��40'596'' N 103��56' 518''E, 21.v.2009, leg. X.S. Bai (IMNU). Paratypes: (♂, damaged abdomen) China, Yunnan, Hekou, Nanxi, 132 m, 22��40'596'' N 103��56' 518''E, 21.v.2009, leg. X.S. Bai (IMNU); (♀) China, Yunnan, Hekou, Nanxi, 132 m, 22��40'596'' N 103��56' 518''E, 21.v.2009, leg. X.S. Bai (IMNU). These specimens are provided with type labels accordingly. Description of female. Head. Longer than wide across eyes (1.2/0.93); genae slightly notched anteriorly, reaching basal one-fourth of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 3.16 times as long as width of head across eyes, relative length of antennal segments I to IV= 0.93/0.43/1.17/0.47; eyes small, convex; postocular tubercles small and not reaching outer margin of antenniferous tubercles, postocular lobes strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 2.67 times as wide as long (1.6/0.6), attenuated anteriorly; collar thick, longer than width of first antennal segment (0.2/0.17); anterolateral angles acute, produced; disc with a median sulcus, flanked by a pair of subtriangular plates which meet at anterior margin; laterad of plates disc with a pair of subquadrangular plates with irregular callosities, conical tubercles and granulate carinae laterally; posterior margin of pronotum slightly convex separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (2.1/1.6); separated from metanotum by a pair of very deep furrows laterally; across meso- and metanota medially with an elongate ridge flanked by deep furrows and subtriangular and oval plates with irregular callosities and high granulated carinae along lateral margin. Metanotum and mtg I+II. Wider than mesonotum (2.73/2.1); median ridge flanked by a pair of deep oval excavations, laterad of with two pairs of oval plates and high granulated carinae along lateral margin; mtg I with a pair of high oblique transverse ridges sloping anterolaterally, separated at middle by a deep depression with a median carina; mtg II wide, disc with a pair of oblique deep furrows, sloping posteriorly and sideways, posterior margin carinate. Abdomen. Tergal plate consisting of mtg III���VI, subpentagonal; posterior margin truncate, lateral margins slightly rounded; median carina raised on mtg III, elevated on mtg IV���VI then sloping; dorsal scent gland openings distinct; laterad of median ridge with the usual pattern of large and small callous spots; deltg II+III completely fused, IV���VII separated by fine sulci; posterolateral angles formed by the dorsally reflexed vltg II���VII progressively protruding and bearing visible spiracles V���VII; ptg VIII clavate shorter than tergite IX. Venter. Sterna III to VI raised along posterior margin, depressed along anterior border, and with triangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions, these bearing a pair of round callous spots of usual pattern; spiracles II to IV ventral, V to VII lateral and visible from above, VIII terminal. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Male. Morphological structures as of female but of smaller size. Head longer than wide across eyes (1.1/0.83); relative length of antennal segments I to IV= 0.8/0.4/1.0/0.47; pronotum wider than long (1.37/0.57); width of mesonotum 1.77; width of metanotum 2.27; mtg VII strongly elevated posteriorly; posterolateral angles of deltg VII rectangular, ptg VIII clavate, shorter than posteriorly constricted cordate pygophore (Figs. 34,35); parameres slender (Figs. 36-38). Measurements [ in mm, ♂ (n=1) / ♀ (n=2), holotype in parentheses ]. Body length 5.9 / 6.85���6.95(6.85); maximal width of abdomen 2.55 / 3.15���3.35 (3.35). Head length 1.1 / 1.25 (1.20), width 0.85 / 0.9���0.95 (0.93). Pronotum length 0.55 / 0.6���0.65 (0.6), width 1.35 / 1.6���1.65 (1.6). Mesonotum width 1.75 / 2.15 (2.1). Metanotum width 2.3 / 2.7���2.75 (2.73). Length of antennal segments I���IV =0.8, 0.4, 1.0, 0.45 / 0.85���0.95, 0.4���0.45, 1.1���1.15, 0.45���0.5 (0.93, 0.43, 1.17, 0.47). Etymology. The specific name refers to the type locality. Distribution. China (Yunnan)., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2018, Reconsideration of the apterous carventine genus Crassocoris and description of Paracrassocoris gen. nov. from China (Hemiptera: Heteroptera: Aradidae), pp. 537-546 in Zootaxa 4455 (3) on pages 542-545, DOI: 10.11646/zootaxa.4455.3.9, http://zenodo.org/record/1457527

Bifurcatoaptera gen. nov. Type species: Bifurcatoaptera lamdongensis sp. nov. Diagnosis. Medium sized apterous species; body elongate oval, colouration blackish brown, surface rugose and glabrous, antennae and legs with small setigerous tubercles. Meso- and metanotum and mtg I+II fused to each other, separated at middle by a longitudinal ridge bifurcate on mtg I+II. Habitus and body structures resemble Crassocoris Bai et al., 2007, but distinguished from the latter by spiracles II–III ventral, IV–VII lateral (vs. II–IV ventral, V–VII lateral), different shape of median ridge without sulcus (vs. with sulcus) and head structure with more pointed and longer antenniferous lobes and postocular tubercles (vs. blunt apices and rounded tubercles). Description. Head. Longer than wide across eyes; genae slender, short; antenniferous tubercles stout, conical, apically pointed; eyes small, semiglobose, with convex face; postocular lobes with small pointed tubercles not reaching outer margin of eyes, converging posteriorly to constricted neck; antennae long and slender, first segment stout and clavate, twice as long as second, this cylindrical and shortest, third cylindrical and longest, fourth fusiform; rostrum arising from a slit-like atrium, not reaching limits of rostral groove. Thorax. Pronotum attenuated anteriorly, anterolateral angles subangular, tuberculate, not protruding beyond collar, disc with a median groove; meso- and metanota separated only laterally, with a subpentagonal median smooth ridge which extends and is fused to mtg I+II where it bifurcates into oblique ridges leaving a triangular smooth depression inbetween; metanotum separated from mtg I+II only laterally by thin furrows; lateral margins of thorax incrassate with deep cleft between pro-, meso- and metanota. Abdomen. Mtg III to VI fused into a subquadrangular tergal plate, with glabrous usual pattern of large and small callous spots and dots; mtg VII strongly elevated posteriorly in male and slightly raised in female.; deltg II and III completely fused. Venter. Prosternum raised with short median carina flanked by a pair of small depressions, at middle fused to meso- and metasternum and sterna I+II, which are flattened medially. Spiracles II–III ventral, IV–VII lateral and visible from above, VIII terminal on ptg VIII. Legs. Long, slender, without spines, trochanters fused with femora. Etymology. The generic name reflects the characteristic shape of the median ridge of meso-metanota and mtg I + II. Distribution. Vietnam.

Bifurcatoaptera lamdongensis sp. nov. (Figs. 1 –17) Type material. Holotype: ♂, labelled: “ Vietnam, Lamdong Pro. / Dalat, 1500m, N 12°30', E 108°25' / 5. VII. 2011, Pham leg.” (IMNU). Paratypes: “ Vietnam, Lamdong Pro. / Dalat, 1500m, N 12°30', E 108°25' / 24. IX. 2011, Bai, Pham leg.” (♀, IMNU); “ Vietnam. Vinphuc. Pro. / Melinh, 200m / N 21°18’, E 105°47’ / 2. 2011 Bai, Pham / Ent. Mus. IMNU Huhhot ” (♀, CEHI). These specimens are provided with type labels accordingly. Description of male. Head. Longer than wide across eyes (0.93/0.80); genae slightly notched anteriorly, reaching basal one-third of first antennal segment; clypeus strongly raised anteriorly, with a tubercle near apex; antenniferous tubercles short, dilated, apices acute; eyes small and convex; postocular tubercles small, conical and not reaching outer margin of eyes, postocular borders strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities; antennae 2.5 times as long as width of head across eyes, relative length of antennal segments I to IV= 0.6/0.3/0.73/0.33; rostrum short, rostral groove wide, deep and closed posteriorly. Pronotum 2.69 times as wide as long (1.43/0.53), attenuated anteriorly; collar thick, as wide as first antennal segment (1.67/1.67); anterolateral angles not produced beyond collar, subangular; disc with a median sulcus, flanked by a pair of subtriangular plates which meet at anterior margin and lateral ovate plates with irregular granulate carinae and conical tubercles; posterior margin of pronotum slightly convex, separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.90/1.43); separated from metanotum by a pair of very deep furrows laterally; with a median elongate ridge extending over metanotum and fused mtg I+II, attenuated and rounded anteriorly, laterally flanked by deep furrows and smooth ovate and subrectangular plates with irregular carinae, the lateral margins granulate. Metanotum, mtg I+II. Metanotum wider than mesonotum (2.13/1.90); structure of median ridge and lateral sclerites as of mesonotum; this median ridge spreads into two oblique ridges on mtg I+II reaching to posterior margin of mtg II, leaving a triangular depression between them, laterally flanked by rugose plates. Abdomen. Tergal plate consisting of mtg III to VI, subquadrangular; anterior and posterior margins truncate, lateral borders slightly rounded; median elevation highest and widest on mtg III, sloping on tergum IV, prolonged to terga V and VI; dorsal scent gland openings small but distinct; laterad of median ridge with a usual pattern of large and small callous spots; deltg II–III completely fused, III–VII separated by fine sulci; dorsally reflexed vltg II–VII forming the progressively protruding posterolateral angles of deltg II to VII, deltg VII with rectangular lobes; spiracles II to III ventral, IV to VII lateral on reflexed vltg IV–VII and visible from above, VIII terminal. Genitalia. Pygophore cordate (Figs. 13, 14), paratergites VIII clavate, reaching basal two-thirds of pygophore; right paramere slender (Figs. 15–17). Venter. Sterna III to VI raising along posterior border, depressed along anterior border with subtriangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions, these bearing a pair of round callous spots and more laterad two pairs of smaller round callous spots. PHOTOS 5–17. Bifurcatoaptera lamdongensis sp. nov. 5–12, body structures. 5, 6, 8, 9, holotype male; 7, 10, 11, 12, paratype female; 5, 7, 8, 10, dorsal view; 6, 9, 11, 12, ventral view; 13–14, pygophore in dorsal and lateral views; 15–17, right paramere. Scale bar = 0.5 mm for 5–14; 0.1 mm for 15–17. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological features similar to male. Head longer than wide across eyes (0.93/0.8); length of antennal segments I to IV= 0.6/0.3/0.73/0.33; pronotum wider than long (1.4/0.5); width of mesonotum 1.77; width of metanotum 2.0; mtg VII slightly elevated posteriorly, paratergites VIII dentiform, reaching to basal three-fourth of tergum IX. Measurements [ in mm, ♂ (n=1)/ ♀ (n=1) ]. Body length 5.30/5.20; maximal width of abdomen 2.40/2.45. Length head 0.93/0.95; width 0.80/0.80. Length pronotum 0.53/0.50; width 1.43/1.40. Mesonotum width 1.90/1.77. Metanotum width 2.13/2.00. Length of antennal segments I–IV = 0.60, 0.30, 0.73, 0.33 / 0.60, 0.30, 0.73, 0.33. Etymology. The species name refers to the type locality. Distribution. Vietnam, so far only recorded from Lamdong and Vinphuc Provinces.

Bifurcatoaptera lamdongensis sp. nov. (Figs. 1 ���17) Type material. Holotype: ♂, labelled: ��� Vietnam, Lamdong Pro. / Dalat, 1500m, N 12��30', E 108��25' / 5. VII. 2011, Pham leg.��� (IMNU). Paratypes: ��� Vietnam, Lamdong Pro. / Dalat, 1500m, N 12��30', E 108��25' / 24. IX. 2011, Bai, Pham leg.��� (♀, IMNU); ��� Vietnam. Vinphuc. Pro. / Melinh, 200m / N 21��18���, E 105��47��� / 2. 2011 Bai, Pham / Ent. Mus. IMNU Huhhot ��� (♀, CEHI). These specimens are provided with type labels accordingly. Description of male. Head. Longer than wide across eyes (0.93/0.80); genae slightly notched anteriorly, reaching basal one-third of first antennal segment; clypeus strongly raised anteriorly, with a tubercle near apex; antenniferous tubercles short, dilated, apices acute; eyes small and convex; postocular tubercles small, conical and not reaching outer margin of eyes, postocular borders strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities; antennae 2.5 times as long as width of head across eyes, relative length of antennal segments I to IV= 0.6/0.3/0.73/0.33; rostrum short, rostral groove wide, deep and closed posteriorly. Pronotum 2.69 times as wide as long (1.43/0.53), attenuated anteriorly; collar thick, as wide as first antennal segment (1.67/1.67); anterolateral angles not produced beyond collar, subangular; disc with a median sulcus, flanked by a pair of subtriangular plates which meet at anterior margin and lateral ovate plates with irregular granulate carinae and conical tubercles; posterior margin of pronotum slightly convex, separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.90/1.43); separated from metanotum by a pair of very deep furrows laterally; with a median elongate ridge extending over metanotum and fused mtg I+II, attenuated and rounded anteriorly, laterally flanked by deep furrows and smooth ovate and subrectangular plates with irregular carinae, the lateral margins granulate. Metanotum, mtg I+II. Metanotum wider than mesonotum (2.13/1.90); structure of median ridge and lateral sclerites as of mesonotum; this median ridge spreads into two oblique ridges on mtg I+II reaching to posterior margin of mtg II, leaving a triangular depression between them, laterally flanked by rugose plates. Abdomen. Tergal plate consisting of mtg III to VI, subquadrangular; anterior and posterior margins truncate, lateral borders slightly rounded; median elevation highest and widest on mtg III, sloping on tergum IV, prolonged to terga V and VI; dorsal scent gland openings small but distinct; laterad of median ridge with a usual pattern of large and small callous spots; deltg II���III completely fused, III���VII separated by fine sulci; dorsally reflexed vltg II���VII forming the progressively protruding posterolateral angles of deltg II to VII, deltg VII with rectangular lobes; spiracles II to III ventral, IV to VII lateral on reflexed vltg IV���VII and visible from above, VIII terminal. Genitalia. Pygophore cordate (Figs. 13, 14), paratergites VIII clavate, reaching basal two-thirds of pygophore; right paramere slender (Figs. 15���17). Venter. Sterna III to VI raising along posterior border, depressed along anterior border with subtriangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions, these bearing a pair of round callous spots and more laterad two pairs of smaller round callous spots. PHOTOS 5���17. Bifurcatoaptera lamdongensis sp. nov. 5���12, body structures. 5, 6, 8, 9, holotype male; 7, 10, 11, 12, paratype female; 5, 7, 8, 10, dorsal view; 6, 9, 11, 12, ventral view; 13���14, pygophore in dorsal and lateral views; 15���17, right paramere. Scale bar = 0.5 mm for 5���14; 0.1 mm for 15���17. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological features similar to male. Head longer than wide across eyes (0.93/0.8); length of antennal segments I to IV= 0.6/0.3/0.73/0.33; pronotum wider than long (1.4/0.5); width of mesonotum 1.77; width of metanotum 2.0; mtg VII slightly elevated posteriorly, paratergites VIII dentiform, reaching to basal three-fourth of tergum IX. Measurements [ in mm, ♂ (n=1)/ ♀ (n=1) ]. Body length 5.30/5.20; maximal width of abdomen 2.40/2.45. Length head 0.93/0.95; width 0.80/0.80. Length pronotum 0.53/0.50; width 1.43/1.40. Mesonotum width 1.90/1.77. Metanotum width 2.13/2.00. Length of antennal segments I���IV = 0.60, 0.30, 0.73, 0.33 / 0.60, 0.30, 0.73, 0.33. Etymology. The species name refers to the type locality. Distribution. Vietnam, so far only recorded from Lamdong and Vinphuc Provinces., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2018, Aradidae from Vietnam V. Bifurcatoaptera, a new genus of apterous Carventinae (Hemiptera: Heteroptera: Aradidae) from Vietnam, pp. 286-290 in Zootaxa 4450 (2) on pages 287-290, DOI: 10.11646/zootaxa.4450.2.7, http://zenodo.org/record/1444772

Bai, Xiaoshuan, Heiss, Ernst, Cai, Wanzhi (2018): Aradidae from Vietnam V. Bifurcatoaptera, a new genus of apterous Carventinae (Hemiptera: Heteroptera: Aradidae) from Vietnam. Zootaxa 4450 (2): 286-290, DOI: https://doi.org/10.11646/zootaxa.4450.2.7

Bifurcatoaptera gen. nov. Type species: Bifurcatoaptera lamdongensis sp. nov. Diagnosis. Medium sized apterous species; body elongate oval, colouration blackish brown, surface rugose and glabrous, antennae and legs with small setigerous tubercles. Meso- and metanotum and mtg I+II fused to each other, separated at middle by a longitudinal ridge bifurcate on mtg I+II. Habitus and body structures resemble Crassocoris Bai et al., 2007, but distinguished from the latter by spiracles II���III ventral, IV���VII lateral (vs. II���IV ventral, V���VII lateral), different shape of median ridge without sulcus (vs. with sulcus) and head structure with more pointed and longer antenniferous lobes and postocular tubercles (vs. blunt apices and rounded tubercles). Description. Head. Longer than wide across eyes; genae slender, short; antenniferous tubercles stout, conical, apically pointed; eyes small, semiglobose, with convex face; postocular lobes with small pointed tubercles not reaching outer margin of eyes, converging posteriorly to constricted neck; antennae long and slender, first segment stout and clavate, twice as long as second, this cylindrical and shortest, third cylindrical and longest, fourth fusiform; rostrum arising from a slit-like atrium, not reaching limits of rostral groove. Thorax. Pronotum attenuated anteriorly, anterolateral angles subangular, tuberculate, not protruding beyond collar, disc with a median groove; meso- and metanota separated only laterally, with a subpentagonal median smooth ridge which extends and is fused to mtg I+II where it bifurcates into oblique ridges leaving a triangular smooth depression inbetween; metanotum separated from mtg I+II only laterally by thin furrows; lateral margins of thorax incrassate with deep cleft between pro-, meso- and metanota. Abdomen. Mtg III to VI fused into a subquadrangular tergal plate, with glabrous usual pattern of large and small callous spots and dots; mtg VII strongly elevated posteriorly in male and slightly raised in female.; deltg II and III completely fused. Venter. Prosternum raised with short median carina flanked by a pair of small depressions, at middle fused to meso- and metasternum and sterna I+II, which are flattened medially. Spiracles II���III ventral, IV���VII lateral and visible from above, VIII terminal on ptg VIII. Legs. Long, slender, without spines, trochanters fused with femora. Etymology. The generic name reflects the characteristic shape of the median ridge of meso-metanota and mtg I + II. Distribution. Vietnam., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2018, Aradidae from Vietnam V. Bifurcatoaptera, a new genus of apterous Carventinae (Hemiptera: Heteroptera: Aradidae) from Vietnam, pp. 286-290 in Zootaxa 4450 (2) on pages 286-287, DOI: 10.11646/zootaxa.4450.2.7, http://zenodo.org/record/1444772, {"references":["Yang, K., Bai, X. & Cai, W. (2007) Lissonotocoris, the first genus record of Carventinae (Hemiptera: Aradidae) from China. Entomotaxonomia, 29 (2), 131 - 134."]}

Taiwanaptera montana sp. nov. (Figs 7, 10) Type locality. China, Yunnan, Lvchum, Huanglianshan, 1791 m, 22°56.625′N, 102°17.785′E. Type material examined. HOLOTYPE: ♁, ‘ China, Yunnan, Lvchum / Huanglianshan 1791m / N22°56.625, E102°17.785 / 2009 V Bai XS / Ent.Mus. CAU, Beijing // HOLOTYPE / Taiwanaptera / montana nov. sp. / des. BAI, HEISS, CAI 2013 [red label]’ (CAUC). PARATYPE: ♀, labelled as holotype (CEHI). Additional material examined. 1 ♁ 1 ♀ (Figs 8, 12), ‘ China, Yunnan, Pingbian / Daweishan 1333m / N22°59.405, E103°41.072 / 2009 V 23 Bai XS / Ent.Mus.’ (CAUC). Description. Male (holotype, apterous). Surface of body rugose, legs and antennae finely granulate; coloration dark reddish brown, tibiae and antennal segments II–IV paler. Head about as long as width across eyes (1.1/1.08); genae produced over clypeus, gaping at middle; antenniferous lobes with subparallel lateral margins; antennae 1.81× as long as width of head (1.95/1.08), length of antennal segments I/II/III/IV = 0.55/0.4/0.6/0.4, structure as T. guangxiana sp. nov.; eyes granulate, postocular lobes granulate, anteriorly without distinct tubercle, straightly converging to constricted neck; vertex rostrum arising from a slit-like atrium, shorter than head, rostral groove deep, closed posteriorly. Pronotum about 2.7 times as wide as long (1.7/0.63); smooth ring-like collar with granulate transverse ridge posteriorly; lateral margins converging towards produced rounded anterolateral angles; disk granular, lateral sclerites separated at middle by a deep furrow; posterior margin sinuate, smooth and thickened. Mesonotum 2.6 times as wide as long (1.95/0.75); scutellar projection with rounded apex its median ridge subparallel, half as wide as diameter of lateral sclerites, these rounded and raised laterally; surface rugose, depressed basally laterad of median ridge. Metanotum consisting of oval sclerites laterad of mesonotal scutellar projection, deeply depressed toward inner angles, surface with an inclined smooth callosity; posterior margin bisinuate. Mtg I+II raised at fusion line to metanotum, sloping posteriorly; structure as in T. guangxiana sp. nov. Abdomen. Tergal plate with median elevation on mtg IV+V, lateral apodemal impressions with granulate surface around smooth apodemes; deltg II+III fused, deltg III–VII separated by sutures, their lateral margin raised; tergite VII raised medially for reception of pygophore; a small rim of dorsally reflexed vltg IV–VII is visible posteriorly to spiracles IV–VI which is triangularly produced on deltg VII. Venter. Prosternum with a median ridge, meso- and metasternum fused to sternites II+III, with a flat matt depression medially; spiracles II–III ventral and not visible from above, IV sublateral, V–VII lateral and distinctly visible from above, VIII terminal on ptg VIII; sternite VII with 2 (1+1) distinct sublateral tubercles directed ventrally. Legs long and slender, straight, protibial comb present; claws with long thin pulvilli. Male genitalia. Pygophore pear shaped, transversely rugose; paratergites VIII small, reaching half of pygophore. The single male was not dissected for the study of parameres. Female. Basically similar to male, however of larger size and with a wider and more rounded abdomen; tergite VII raised posteriorly to a transverse ridge, surface rather smooth with few transverse striae. Measurements. Male (holotype). Length 5.3 mm; width of abdomen across tergite III – 2.50, IV – 2.55, V – 2.50, VI – 2.35. Female (paratype). length 6.2 mm; length/width of head 1.25/1.175; length/width of pronotum 0.65/1.85; length/width of mesonotum 0.75/2.2; length of antennal segments I/II/III/IV = 0.6/0.4/0.65/0.45; ratio length of antennae / width of head 1.79; width of abdomen across tergites III – 3.15, IV – 3.2, V – 3.15, VI – 2.9. Variation. The two specimens from Yunnan, Pingbian, Daweishan share all essential characters of T. montana sp. nov., but show slight differences in minor structures (e.g. slightly longer antennae, somewhat wider antenniferous tubercles, postocular lobes more granulate, compare Figs 10, 12). The Daweishan mountains are located about 108 km distant from Huanglianshan and are not directly connected. These records are presently classified as T. montana sp. nov., but not included in the type series, as it cannot be excluded that the species from Daweishan represents an endemic taxon, which needs to be tested by molecular data and dissection of genitalia. Etymology. The species name, montanus (- a, - um), is the Latin adjective referring to the mountainous region of Yunnan where it occurs. Distribution. Recorded from China, Yunnan Province., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2017, A new genus and three new species of apterous Carventinae from China (Hemiptera: Heteroptera: Aradidae), pp. 35-46 in Acta Entomologica Musei Nationalis Pragae (suppl.) (suppl.) 57 (1) on pages 44-45, DOI: 10.1515/aemnp-2017-0056, http://zenodo.org/record/4486730

Cathaycoris bibulbosus sp. nov. (Figs 1–4) Type locality. China, Yunnan, Pingbian, Daweishan, 1333 m, 22°59.405′N, 103°41.072′E. Type material examined. HOLOTYPE: ♁, ‘ China, Yunnan, Pingbian / Daweishan 1333m / N 22°59.405, E 103°41.072 / 2009 V 23, Bai XS / Ent. Mus. CAU Beijing // HOLOTYPE ♁ / Cathaycoris nov.gen. / bibulbosus nov. sp. / des. BAI, HEISS, CAI 2013 [red label]’ (CAUC). PARATYPE: ♀, same data as holotype (CEHI). Description. As the generic description is already detailed and based on the type specimens, only few additional characters are added here. Male (apterous) (Figs 1–3). Head only slightly longer than width across eyes (1.15/1.13); apex of clypeus free, flanked by laterally produced genae reaching half of antennal segment I; antenniferous lobes diverging anterolaterally; antennae 1.75 times as long as width of head (1.98/1.13), segment I thickest and longest, II–IV thinner and shorter, length of segments I/ II/III/IV = 0.6/0.43/0.55/0.4; eyes globose, granulate; postocular lobes with a distinct lateral tubercle then converging to constricted neck; vertex raised at middle, flanked by 2 (1+1) oval callosities. Pronotum strongly transverse; anterior lobe with a ring-like collar triangularly produced posteriorly, posterior lobe much wider than anterior one, anterolaterally produced, lateral margin concave, humeri raised. Mesonotum. T-shaped scutellum-like plate strongly raised posteriorly, flat with rugose surface laterally; lateral wing pad-like oval sclerites fused to T-shaped sclerite separated by a thin suture. Metanotum. Median part covered by mesonotal scutellar structure, lateral sclerites sloping to lateral margins, posteriorly fused to mtgI marked by a distinct suture. MtgI+II completely fused, mtgI raised medially to 2 (1+1) high granulate humps, mtgII sloping posteriorly. Venter (Fig. 3). Median surface glabrous, lateral parts and pleural regions rather matt, granulate and rugose; meso- and metasternum and mstII with a flat median depression of matt surface, spiracles II ventral, III–IV sublateral close to lateral margin and slightly visible from above, V–VII lateral on dorsally reflexed vltg V–VII and visible from above, VIII terminal on ptg VIII. Male genitalia. Pygophore conical, twice as wide as long, surface granulate. The single male was not dissected for the study of parameres. Legs long and slender, femora moderately incrassate, tibiae cylindrical, claws with thin pulvilli. Female (Fig. 4). Generally as male but of larger size and more rounded, wider abdomen; tergite VII glabrous at middle, slightly raised to a granulate transverse ridge posteriorly; sternite VII lacking tubercle. Measurements. Male (holotype): body length 5.7 mm (including gaping pygophore); length / width of pronotum 0.6/1.6 (1.7 posterior lobe); length / width of mesonotum 0.6/2.0; length / width of mtgI+II 0.6/1.55; width of abdomen across tergite III – 2.75, IV – 2.75, V – 2.65, VI – 1.3. Female (paratype): body length 6.2 mm; length / width of head 1.3/1.25; length / width of pronotum 0.75/1.75 (1.95 posterior lobe); length / width of mesonotum 0.65/2.25; length / width of mtgI+II 0.7/1.8; width of abdomen across tergite III – 3.25, IV – 3.3, V – 3.2, VI – 2.85; length of antennal segments I/II/III/IV = 0.63/0.45/0.6/0.4, ratio length of antennae / width of head 1.66. Etymology. The species name is a composed adjective bibulbosus (- a, - um) referring to the two distinct elevated structures on mtgI and tergal plate, composed of the Latin words ‘ bi- ’ (for double) and ‘ bulbus ’ (for round elevation). Distribution. China: Yunnan., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2017, A new genus and three new species of apterous Carventinae from China (Hemiptera: Heteroptera: Aradidae), pp. 35-46 in Acta Entomologica Musei Nationalis Pragae (suppl.) (suppl.) 57 (1) on pages 38-41, DOI: 10.1515/aemnp-2017-0056, http://zenodo.org/record/4486730, {"references":["HEISS E. & NAGASHIMA S. 2008: New Carventinae from Taiwan and Japan I. (Heteroptera, Aradidae). Linzer Biologische Beitrage 40: 287 - 301."]}

Taiwanaptera guangxiana sp. nov. (Figs 6, 9) Type locality. China, Guangxi, Longshenghuaping, 748 m, 25°37.508′N, 109°54.514′E. Type material examined. HOLOTYPE: ♀, ‘ China, Guangxi / Longshenghuaping / 2008 V 2, Bai XS / Ent.Mus.Imnu., Huhhot // HOLOTYPE / Taiwanaptera / guanxiana nov. sp. / des. BAI, HEISS, CAI 2013 [red label]’ (EMNU). PARATYPE: ♀, same data as holotype (CEHI). Description. Female (apterous). Surface of body glabrous with irregular rugosities, legs and antennae finely granulate; coloration dark reddish-brown, tibiae and antennal segments II–IV ochraceous. Head slightly longer than width across eyes (1.2/1.1); granulate genae produced anteriorly over narrow clypeus leaving a gap in the middle, reaching about half the length of antennal segment I; clypeus longitudinally rugose, a round dorsal tubercle near apex; antenniferous lobes diverging anterolaterally, apex subacute; antennae 2.07 times as long as width of head (2.28/1.1), segment I thickest and constricted at base, II shorter and slender, III thinner and longest, IV fusiform with pilose apex; length of antennal segments I/II/III/IV = 0.65/0.45/0.73/0.45; eyes semicircular granulate; postocular lobes with a distinct tubercle anteriorly then strongly converging toward constricted neck, vertex granulate at middle with 2(1+1) ovate callosities laterally. Rostrum arising from a slit-like atrium, shorter than head; rostral groove deep, closed posteriorly. Pronotum transverse, 2.5 times as wide as long (1.75/0.7); ring-like collar with a posterior median granulate elevation, delimited by a deep groove; lateral margins converging anteriorly, anterolateral angles roundly produced, not projecting over collar; lateral sclerites of disk irregularly rugose, raised toward lateral margins, separated at middle by a deep groove bearing a thin carina; posterior margin sinuate delimited by a smooth transverse ridge. Mesonotum 2.7 times as wide as long (2.18/0.8); laterally expanded lobes rounded at apices, surface rugose; median scutellar projection as wide as diameter of lateral sclerites, its surface elevated and rugose. Metanotum formed by 2 (1+1) oval rugose sclerites lateral of mesonotal scutellar projection, anteriorly separated from mesonotum by deep furrows; posterior margin bisinuate, fused to mtg I+II, fusion line indicated by a thin sulcus. Mtg I+II fused, anterior margin forming a bisinuate smooth transverse ridge from which 2 narrower lateral and one wide median smooth ridge produced posteriorly with 4 (2+2) deep oval depressions between them; posterior margin slightly concave at middle. Abdomen. Fused tergal plate of oval outline, surface with a median elevation highest on mtg IV–V; lateral apodemal impressions flat, delimited by smooth carinate margins; deltg II+III fused, deltg III–VII separated by sutures, their surface granulate and raised along lateral margin; posteriorly to dorsally visible spiracle VI with small rim and posterior to spiracle VII a triangular projection representing the dorsally reflexed portions of veltg VI and VII. Venter. Prosternum with a median ridge, meso- and metasternum fused to sternites II+III, flat matt depression medially; spiracles II–IV ventral,V sublateral but visible from above, VI and VII lateral and visible, VIII dorsal on transverse paratergites VIII. Legs long and slender, straight; protibial comb present; claws with long thin pulvilli. Measurements. Female: Holotype: Length 6.2 mm; width of abdomen across tergite III 3.25, IV 3.35, V 3.25, VI 3.0; width of paratergite VIII 0.9; paratype: length 6.0 mm; head length/width 1.2/1.1; pronotum length/width 0.7/1.65; mesonotum length/width 0.75/2.05; length of antennal segments I/II/III/IV = 0.6/0.45/0.68/0.45; ratio length of antennae / width of head 1.97; width of abdomen across tergites III 3.1, IV 3.15, V 3.1, VI 2.88. Etymology. Adjective guangxianus (- a, - um), given after the province of Guangxi where this species was discovered. Distribution. So far only known from the type specimens from China, Guangxi province., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2017, A new genus and three new species of apterous Carventinae from China (Hemiptera: Heteroptera: Aradidae), pp. 35-46 in Acta Entomologica Musei Nationalis Pragae (suppl.) (suppl.) 57 (1) on pages 42-43, DOI: 10.1515/aemnp-2017-0056, http://zenodo.org/record/4486730, {"references":["HEISS E. & NAGASHIMA S. 2008: New Carventinae from Taiwan and Japan I. (Heteroptera, Aradidae). Linzer Biologische Beitrage 40: 287 - 301."]}

Cathaycoris gen. nov. Type species. Cathaycoris bibulbosus sp. nov., here designated. Description. Head about as long as wide across eyes; genae produced over clypeus, cleft at middle; antenniferous lobes short and blunt; antennae about 1.7 times as long as width of head, segment I thickest and longest, the following thinner and shorter; eyes globose, not inserted in head; postocular lobes with lateral tooth, then converging to neck. Rostrum arising from a slit-like atrium, shorter than head. Pronotum about twice as wide as long; collar large, triangularly produced posteriorly, laterally separated from anterolateral angles by an incision; disk with 2(1+1) smooth callosities, lateral sclerites produced anterolaterally, lateral margin concave, posterior margin sinuate, delimited by a transverse carina, raised at humeri. Mesonotum consisting of a T-shaped scutellum-like, median, posteriorly elevated sclerite, which is fused to 2 (1+1) oval lateral expansions, interpreted as wing pad rudiments; posterior margin of mesonotum fused to metanotum, both delimited by a deep transverse sulcus. Metanotum. The 2 (1+1) sclerites situated in the lateral margin of the median scutellar projection of mesonotum are of polygonal shape, their surface being irregularly rugose; fused to mtgI, its fusion line marked by a thin suture. Mtg I+II fused without being delimited by a visible fusion line, of trapezoidal shape; mtgI strongly elevated at middle into 2 (1+1) granulate humps, higher than adjacent median mesonotal elevation; mtg II sloping posteriorly to transverse suture separating it from tergal plate; surface except humps deeply impressed. Abdomen. Tergal plate with large median elevation highest on mtg IV+V sloping laterally; deltg II+III fused, triangular, anteriorly reaching mesonotum; deltg III–VII separated by sutures; lateral margin with dorsally reflexed vltg V–VII visible as lateral expansions on deltg V–VII; tergite VII strongly raised in male for accommodating the pygophore. Venter. Prosternum with a median ridge, meso- and metasternum and mstII flat at middle, tooth-like projections directed to coxae not developed; surface of pleural regions rugose, that of sternites III–VII smooth and shiny at middle, rugose laterally of lateral apodemes; spiracles II ventral, III–IV sublateral close to lateral margin and slightly visible from above, V–VII lateral on dorsally reflexed vltg V–VII and visible from above, VIII terminal on ptg VIII; sternite VII of male bears a large glabrous round tubercle, produced posteriorly below the reflexed vltg VII and visible from above. Legs long and slender, unarmed, claws with thin pulvilli. Differential diagnosis. Apterous, medium sized; surface of body and appendages are granular and rather mat, tergal plate is glabrous except the median elevation; coloration is black. Distinguished from other genera by sharing the conspicuous T-shaped mesonotum as follows. There are only three apterous genera of Oriental Carventinae sharing the triangularly produced, T-shaped scutellum-like mesonotum extending to mtgI – Apteraradus Drake, 1957 from Malaysia, Thailand, Vietnam and Sunda Islands, Taiwanaptera Heiss & Nagashima, 2008 from Taiwan and Japan, and Parataiwanaptera Heiss, 2010 from Vietnam. Cathaycoris gen. nov. differs from the preceding genera at first glance by the high median elevations on mesonotum, mtgI and tergal plate (which are flat in the other genera), by the shape of pronotum, and the distinct lateral tooth of the postocular lobes. Etymology. Refers to ‘ Cathay ’ the ancient name for China used by the famous European traveller Marco Polo when returning to Venice in 1295 and ‘ coris ’, the Greek word for bug. The gender is masculine., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2017, A new genus and three new species of apterous Carventinae from China (Hemiptera: Heteroptera: Aradidae), pp. 35-46 in Acta Entomologica Musei Nationalis Pragae (suppl.) (suppl.) 57 (1) on pages 37-38, DOI: 10.1515/aemnp-2017-0056, http://zenodo.org/record/4486730, {"references":["DRAKE C. J. 1957: New apterous Aradids from the East Indies (Hemiptera). Philippine Journal of Science 85 (3): [1956]: 405 - 412.","HEISS E. & NAGASHIMA S. 2008: New Carventinae from Taiwan and Japan I. (Heteroptera, Aradidae). Linzer Biologische Beitrage 40: 287 - 301.","HEISS E. 2010: Two new genera of Aradidae from Malaysia and Vietnam (Hemiptera: Heteroptera: Aradidae). Zootaxa 2619: 56 - 62."]}

The following new apterous flat bugs of the subfamily Carventinae (Hemiptera: Heteroptera: Aradidae) from China are described and illustrated: Cathaycoris bibulbosus gen. nov. & sp. nov. from Yunnan Province; Taiwanaptera guangxiana sp. nov. from Guangxi Province and Taiwanaptera montana sp. nov. from Yunnan Province. A key to all known species of Taiwanaptera is provided.

Key to Taiwanaptera species 1 Apex of triangular scutellum-like projection of mesonotum narrow, subacute; its surface transversely rugose without distinct elevation; anterolateral angles of pronotum nearly rectangular. Taiwan, Japan, Ryukyu (Figs 5, 11)................................................................................... T. glabra Heiss & Nagashima, 2008 – Apex of triangular scutellum-like projection of mesonotum wider and rounded, its surface distinctly medially raised; anterolateral angles of pronotum produced...................... 2 2 Scutellar ridge as wide as diameter of lateral sclerites and of same height on whole length; antennae longer, about twice as long as width of head; postocular lobes with distinct lateral tubercle; spiracles II–IV ventral and not visible from above, V–VII lateral and visible. China: Guangxi (Figs 6, 9).......................................................... T. guangxiana sp. nov. – Scutellar ridge distinctly narrower than diameter of lateral sclerites, depressed at middle; antennae about 1.8–1.9 times as long as width of head; postocular lobes granulate; spiracles II–III ventral and not visible from above, IV sublateral and V–VII lateral and visible. China: Yunnan (Figs 7, 10)............................................................... T. montana sp. nov., Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2017, A new genus and three new species of apterous Carventinae from China (Hemiptera: Heteroptera: Aradidae), pp. 35-46 in Acta Entomologica Musei Nationalis Pragae (suppl.) (suppl.) 57 (1) on page 41, DOI: 10.1515/aemnp-2017-0056, http://zenodo.org/record/4486730, {"references":["HEISS E. & NAGASHIMA S. 2008: New Carventinae from Taiwan and Japan I. (Heteroptera, Aradidae). Linzer Biologische Beitrage 40: 287 - 301."]}

Key to Taiwanaptera species 1 Apex of triangular scutellum-like projection of mesonotum narrow, subacute; its surface transversely rugose without distinct elevation; anterolateral angles of pronotum nearly rectangular. Taiwan, Japan, Ryukyu (Figs 5, 11)................................................................................... T. glabra Heiss & Nagashima, 2008 – Apex of triangular scutellum-like projection of mesonotum wider and rounded, its surface distinctly medially raised; anterolateral angles of pronotum produced...................... 2 2 Scutellar ridge as wide as diameter of lateral sclerites and of same height on whole length; antennae longer, about twice as long as width of head; postocular lobes with distinct lateral tubercle; spiracles II–IV ventral and not visible from above, V–VII lateral and visible. China: Guangxi (Figs 6, 9).......................................................... T. guangxiana sp. nov. – Scutellar ridge distinctly narrower than diameter of lateral sclerites, depressed at middle; antennae about 1.8–1.9 times as long as width of head; postocular lobes granulate; spiracles II–III ventral and not visible from above, IV sublateral and V–VII lateral and visible. China: Yunnan (Figs 7, 10)............................................................... T. montana sp. nov.

Pseudowuiessa Bai, Heiss & Cai, gen. nov. Type species: Pseudowuiessa producta Bai, Heiss & Cai, sp. nov. Diagnosis. Brachypterous, of medium size. Body elongate ovate, sparsely covered with stiff, erect bristles. Distinguished from morphologically similar genera by characters discussed below and given in the key. Description. Head longer than width across eyes; genae (= maxillary plates) distinctly longer than clypeus; antenniferous lobes finger-like, diverging; antennae about 1.8 times as long as width across eyes; segment I stout, II shortest tapering toward base, III longest, cylindrical and slightly longer than I, IV longer than II and fusiform; eyes globose, slightly stylate; postocular lobes granulate, converging posteriorly; rostrum arising from a slit-like atrium, not reaching limits of rostral groove (Figs. 3, 5). Pronotum less than three times as wide as long at midline; collar very narrow, granular; anterolateral lobes strongly produced forward, lateral margins sinuate, subparallel at humeri, posterior margin convex; fore lobe with a median sulcus flanked by 2 (1+1) ovate callosities, followed laterad by 2 (1+1) prominent, sublateral conical tubercles; hind lobe with 2 (1+1) setigerous tubercles posterolaterally. Mesonotum. Scutellum large, subtriangular, apex widely rounded, disk with an anterior median high tuberculate bulbous elevation; hemelytra reduced to small oval wing pads laterad of scutellum, lateral margins raised, beset with setigerous tubercles; posterior margins rounded. Metanotum and abdominal tergum I fused together, forming narrow transverse plates, no fusion line discernible, divided into 2 (1+1) plates by scutellum, separated from mtg II by a distinct transverse suture, posterior margin trisinuate. Abdomen. Mtg II consisting of 2 (1+1) small triangular plates separated by an anteriorly produced tergal plate, the latter of pentagonal shape with a median elevation on mtg III���VI, lateral parts with shallow depressions; disk of mtg VII of female with two conical tubercles medially; deltg II���VII separated by sutures, surface granulate, posterior margins with conical tubercles; lateral margins of deltg II���VI slightly sinuate (Fig. 1). Venter. Sterna III to VI raised along posterior border, depressed along anterior border; lateral plates with shallow pits; spiracles II���VII ventral, VIII lateral (Fig. 3). Legs slender, without spines; trochanters distinct. Distribution. China: Yunnan. Etymology. The generic name refers to the general similarity of the new genus to Wuiessa Hsiao, 1964. Discussion. The new genus shares the conspicuous anteriorly produced tergal plate with the abovementioned brachypterous Oriental Mezirinae genera Lophocoris and Wuiessa and the micropterous genus Stipesoculus. Lophocoris is easily distinguished by different head structure with non-stylate eyes, lateral margins of pronotum with two finger-like projections, a prominent round elevation on mtg III���IV and posterolateral angles of deltg II��� VII laterally angulately produced. Stipesoculus differs from the new genus by its extremely stylate eyes, its micropterous condition, and the triangular scutellum with acute apex. Brachypterous Wuiessa species are highly similar, but distinct at generic level, differing from Pseudowuiessa gen. nov. in their shorter genae, eyes not being stylate, postocular lobes with a lateral tooth, and anterior pronotal disk with two median conical tubercles., Published as part of Shi, Kai, Bai, Xiaoshuan, Wu, Zhiyi, Heiss, Ernst & Cai, Wanzhi, 2016, Pseudowuiessa, a new genus of brachypterous Mezirinae (Hemiptera: Heteroptera: Aradidae) from China, pp. 146-150 in Zootaxa 4158 (1) on page 147, DOI: 10.11646/zootaxa.4158.1.10, http://zenodo.org/record/256330, {"references":["Hsiao, T. Y. (1964) Results of the zoologico-botanical expedition to southwest China 1955 - 1957 (Heteroptera: Aradidae). Acta Entomologica Sinica, 13 (4), 587 - 605. [in Chinese with English summary]"]}

Pseudowuiessa producta Bai, Heiss & Cai, sp. nov. (Figures 1���5) Description. Colour, integument and vestiture. Body blackish brown; eyes reddish. Thoracic tergites and pleura, scutellum, most of abdominal lateral plates of third to sixth abdominal sterna covered with setigerous granules. Antennae and legs beset with erect setae. Head. Genae produced over raised clypeus nearly reaching apex of first antennal segment, their lateral margins subparallel; antenniferous lobes finger-like, diverging anteriorly; vertex with V-shaped tuberculate ridges flanked by 2 (1+1) shallow ovate callosities; postocular lobes granulate; antennae 1.82 times as long as width of head across eyes; rostrum not reaching limits of rostral groove, rostral groove deep, narrow, open posteriorly (Figures 3, 5). Pronotum 2.6 times as wide as long at midline; disc with median sulcus flanked by 2 (1+1) ovate callosities, semi-surrounded by tuberculate carinae; laterad with 2 (1+1) prominent conical tubercles; transversely depressed posteriorly. Scutellum. Disc granulate, sloping posteriorly and laterally of anterior median elevation; lateral margins slightly sinuate, with a row of granules; posterior margin widely rounded. Hemelytra. Sclerotized wingpads of polygonal shape, nearly reaching apex of scutellum, surface granulate. Abdomen. Anterior margin of tergal plate strongly protruding medially, reaching apex of scutellum, flanked by 2 (1+1)transverse sclerites of mtg I+II; lateral margins of deltg II���VII slightly sinuate; tergal plate moderately raised medially along mtg III���V forming rhomboid elevations, sloping posteriorly on mtg VI; laterad of median ridge the usual pattern of glabrous areas marked by shallow depressions, surface roughly punctured; sublateral glabrous areas reduced, separated from submedian areas by longitudinal carinae; deltg II���VII each with 2 glabrous areas, posterolateral angles slightly progressively protruding; paratergites VIII of female almost reaching apex of tergum IX (Fig. 1). Venter. Prosternum with median elevation, separated from mesosternum by a suture; meso-, metasterna and sternum II separated by sutures, with shallow smooth longitudinal impressions at middle. Metathoracic scent gland canal obliquely elevated, extending to lateral margins of thoracic pleura, not visible from above. Sterna III to VI with triangular, smooth spots medially, flanked by 2 (1+1) large, shallow depressions, these bearing 2 (1+1) round callous spots; laterad with 4 (2+2) smaller round callous spots. Spiracles II���VII ventral, remote from lateral margin, VIII lateral and visible from above (Fig. 3). Legs slender, femora moderately inflated, tibiae cylindrical, nearly straight, preapical comb on fore tibia present, claws without pulvilli. Measurements (in mm, females (n=2), holotype in parentheses). Body length 9.0 (9.0); maximal width of abdomen 4.5���4.6 (4.6). Length head 1.8 (1.8); width 1.7 (1.7). Length pronotum 1.0 (1.0); width 2.6 (2.6). Length scutellum 1.0 (1.0); width 3.0 (3.0). Length antennal segments I���IV = 0.8, 0.6, 1.0, 0.7 (0.8, 0.6, 1.0, 0.7). Type material. Holotype: female, China, Yunnan Province, Lushui County, Pianma, alt. 2000 m, 24.vi.2010, Liang Tang leg. (IMNU). Paratype: female, same data as holotype (IMNU). Etymology. The specific epithet refers to the produced anterolateral angles of pronotum. Distribution. So far only recorded from the type locality in China (Yunnan)., Published as part of Shi, Kai, Bai, Xiaoshuan, Wu, Zhiyi, Heiss, Ernst & Cai, Wanzhi, 2016, Pseudowuiessa, a new genus of brachypterous Mezirinae (Hemiptera: Heteroptera: Aradidae) from China, pp. 146-150 in Zootaxa 4158 (1) on page 149, DOI: 10.11646/zootaxa.4158.1.10, http://zenodo.org/record/256330

Cui, Jianxin, Bai, Xiaoshuan, Heiss, Ernst, Cai, Wanzhi (2015): A new apterous genus of Carventinae (Hemiptera: Aradidae) from China. Zootaxa 3980 (1): 143-146, DOI: http://dx.doi.org/10.11646/zootaxa.3980.1.9

Paramorphocoris henanensis Bai & Heiss, sp. nov. ( Figs. 1���6 ) Type material. Holotype: female, China, Henan, Xinyang, 27. IV. 2014, B. X. Bai leg. (IMNU); paratype female collected with holotype, deposited in the collection of EH at the Tiroler Landesmuseum (CEHI). Specimens are designated and labeled accordingly. Description of female holotype. Color: Body blackish brown, incrustation grayish brown; eyes reddish; head, thoracic tergites and pleura, most of abdominal tergites, connexiva, lateral parts of third to seventh sterna covered by incrustation; antennae and legs beset with adpressed setae (Fig. 1). Head. Longer than width across eyes; genae slightly notched anteriorly, reaching basal one-third of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute, divergent anteriorly; eyes small, convex laterally; postocular lobes anterolaterally subparallel with few small conical tubercles, then constricted posteriorly; vertex with granulate median ridge (Figs. 4, 5); antenna 1.93 times as long as width of head across eyes; rostrum shorter than head, rostral groove narrow and deep, closed posteriorly (Fig. 6). Pronotum. Width 3.12 times as wide as long, narrowing anteriorly, anterolateral angles protruding forward beyond collar; collar narrow; disc with deep rounded pit at median of anterior half, posteriorly followed by longitudinal groove flanked by 2 (1 + 1) small rounded smooth elevations (Figs. 1, 3); lateral margins raised and granulate; posterior margin slightly convex, separated from mesonotum by deep furrow. Mesonotum. Wider than pronotum; separated from metanotum by 2 (1 + 1) deep furrows lateral of the median, elongate, smooth ridge extending to metanotum, depressed anteriorly and raised posteriorly, strongly constricted at posterior margin; elevated structures adjacent to median ridge with 2 (1 + 1) smooth, high longitudinal ridges; granulate surface and carinate lateral margins. Metanotum. Wider than mesonotum; median ridge with a deep longitudinal sulcus, flanked by 2 (1 + 1) deep depressions; surface laterad of median ridge with 2 (1 + 1) high longitudinal granulate ridges, lateral margins forming granulate carinae; separated from mtg I by narrow transverse sulcus. Mtg I+II. Mtg I with 2 (1 + 1) high transverse ridges, with deep median depression between them; separated from mtg II by transverse sulcus; mtg II sloping sideways, depressed at middle, posterior margin sinuate and carinate (Figs. 1- 3). Abdomen. Tergal plate consisting of mtg III - VI; anterior margin medially produced, posterior margin truncate, lateral margins slightly rounded; median carina on mtg III - V, moderately raised, tapering on mtg VI; scent gland openings on mtg IV and V distinct; surface laterad of median ridge with usual pattern of large and small callous spots; surface of deltg II-VII subhorizontal, deltg II and III completely fused, others separated by fine sulci; posterolateral angles of deltg II to VI not protruding, VII angularly produced; paratergites lobate; terminal part of abdomen as in Figs. 1,2. Venter. Spiracles II to IV ventral, V to VII lateral and visible from above, VIII terminal; prosternum raised medially; mesosternum and metasternum with subreactangular median depressions; sterna III to VI raised along posterior border, depressed along anterior border with triangular smooth spots medially, flanked by 2 (1 + 1) large, transversely ovate shallow depressions bearing 2 (1 + 1) round callous spots; followed laterally by 4 (2 + 2) smaller round callous spots. Legs. Slender, preapical comb on fore tibia present, claws without pulvilli. Measurements. Holotype female: length 4.95; maximum width of abdomen 2.35; head, length 1.0, width 0.75; pronotum, length 0.4, width 1.25; width mesonotum 1.6; width metanotum 2.0; length of antennal segments I���IV = 0.45, 0.25, 0.45, 0.3. Paratype female: length 5.05; maximum width of abdomen 2.35; head, length / width 1.0 / 0.75; pronotum, length / width 0.5 / 1.25; width mesonotum 1.65; width metanotum 2.0. Etymology. This specific name refers to the province where this species was collected. Distribution. China (Henan Province)., Published as part of Cui, Jianxin, Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2015, A new apterous genus of Carventinae (Hemiptera: Aradidae) from China, pp. 143-146 in Zootaxa 3980 (1) on pages 144-145, DOI: 10.11646/zootaxa.3980.1.9, http://zenodo.org/record/239185

Paramorphocoris Bai & Heiss, gen. n. Type species: Paramorphocoris henanensis Bai & Heiss, sp.n. Diagnosis. Apterous. Medium sized. Body elongate ovate. Dorsal and ventral surfaces partly covered by grayish incrustation of unique pattern, only lateral borders with few short bristles. Head longer than width across eyes; genae slender, produced over clypeus; antenniferous tubercles stout, conical, apically pointed; eyes small, semiglobose, with convex face; postocular lobes anterolaterally subparallel with some distinct tubercles, converging posteriorly to constricted neck; vertex and clypeus together forming a median ridge; antennae long and slender, first and third segments of subequal length, second shortest, first stout and clavate, second and third cylindrical, fourth fusiform; rostrum arising from a slit-like atrium, not reaching limits of rostral groove. Pronotum attenuated anteriorly, anterolateral angles protruding anteriorly beyond collar, disc with narrow medial groove. Meso- and metanota medially fused to narrow, high longitudinal ridge strongly constricted at middle and flanked by deep depressions, laterally separated by furrows, metanotum separated by furrows from mtg I, mtg II and triangular fused deltg I+II; lateral margins of thoracic segments incrassate, deeply cleft between pro-, meso-, and metanota. Mtg I separated from mtg II by a furrow. Tergal plate of fused mtg III-VI pentagonal. Tergite VII strongly elevated posteriorly (Fig. 2) Thoracic sterna with processes pointing to coxae. Legs long and slender, without spines trochanters fused to femora. Distribution. China. Etymology. The generic name reflects the similarity to Morphocoris, >para Remarks. General habitus, head and thoracic structures of the new genus resemble those of the Oriental genus Morphocoris Kormilev 1980 (Kormilev 1977 (as Glyptomorpha); Heiss 1982), which comprises 3 species from Thailand, Malaysia, and India. Compared with a male paratype of Morphocoros thailandicus in the collection of the co-author (EH) (no female specimen has ever been illustrated), the latter is distinguished from Paramorphocoris henanensis gen. et sp. nov. by a much wider and less constricted median ridge of meso- and metanotum without a longitudinal sulcus, by the very deep oval lateral excavations of metanotum, the deeper median depression of mtg I+II showing 2 longitudinal carinae at its bottom on mtg II, the straight anterior margin of the tergal plate, and the deep median excavation on mtg III in continuation of that of mtg I+II flanked by raised margins. The elevations and deep cavities cannot be recognized from Kormilev’s 1977 only illustration of this species (p. 618, Fig. 19).