Problepsis stueningi Xue & Cui & Jiang 2018, sp. nov

Problepsis stueningi sp. nov. Figs 4, 5, 33, 54, 75, 94 Description. Head: Antennae bipectinate in male, pectinations slightly longer than diameter of shaft, filiform at terminal one-fifth; filiform in female; dorsal surface greyish brown to blackish grey, black basally, pectination yellowish brown to dark brown in male. Frons and vertex black, frons sparsely diffused with white on ventral surface. Labial palpus blackish brown, suffused with yellowish white ventrally. Thorax: Patagia, tegulae and thorax white. Hind tarsus about one-third length of tibia in male. Forewing length: male 15���18 mm; female 16���17 mm. Wings ground color white. Forewing diffused with dark grey scales on costal area between base and postmedial line; ocellus almost oval, yellowish brown with a complete silvery inner ring and two wedge-shaped black patches on both sides of CuA1; a small rounded yellowish brown marking present behind ocellus, extending to anal margin, with silvery scales; postmedial line arched, pale yellowish brown; submarginal line composed of two rows of cloud-like grey spots, inner ones larger and more distinct than outer ones; terminal line grey; fringes white, mixed with grey on terminal half. Hind wing with a kidney-shaped yellowish brown ocellus, with a complete silvery ring; a small rounded yellowish brown marking present behind ocellus, mostly covered with slivery scales, extending to anal margin, sometimes confluent with ocellus; postmedial line parallel with outer margin, pale yellowish brown. Underside with costa yellowish brown to dark greyish brown, not extending towards behind; principal markings showing through faintly from upperside; ocellus without greyish brown scales and two wedge-shaped black markings visible; postmedial line invisible. Abdomen. First and second abdominal segment white dorsally, remaining segments grey. Male genitalia: Tegumen almost triangular at apex, without spines on internal margin. Socii terminally fused, narrow and digitate. Outer margin of valvula protruding outwards in a triangular shape and irregularly dentate at apex of protrusion; sacculus narrow and curved. Juxta forming an inverted tongue-like lobe with rounded apex, anterior margin concaved centrally, free from sacculus. Aedeagus with coecum penis dilated, short than aedeagus, manica with a small patch of teeth and a sclerotized band at apex; vesica with one triangular and one semicircular cornuti, and one sclerotized band. Anterior margin of eighth sternite bifurcate, forming two broad and rounded lateral protrusions and one large process centrally with square apex. Female genitalia: Lamella postvaginalis semicircle, fused to ductus bursae, with a small ring-like process on each lateral side. Ductus bursae stout, width slightly shorter than length, straight and sclerotized; a trapeziform sclerite on dorsal side of anterior part of ductus bursae extending to corpus bursae, with two acute processes slightly extending outwards. Corpus bursae spheric, membranous; signum an elliptic patch of separate spines, situated on left side. Diagnosis. See P. eucircota. Type material. Holotype, ♂, CHINA: Gansu (IZCAS): Wenxian, Bikou protect station, 645 m, 11.VIII.2016, coll. Cheng Rui, IZCAS slide no. Geom-04616. Paratypes: CHINA: Henan (IZCAS): 11 ♂, Xinyang, Jigong Shan, 250 m, 20���21.VII.2002, coll. Han Hongxiang, IZCAS slide no. Geom-04612. Shaanxi (IZCAS): 2 ♂, Shangnan, Jinsixia, 777 m, 23���25.VII.2013, coll. Cui Le et al., IZCAS slide no. Geom-04620; 12 ♂, Xunyang, Bailiu, Jinxinyuan Shanzhuang, 386 m, 1���3.VIII.2014, coll. Liu Shuxian et al., IZCAS slide no. Geom-04606, 0 4618, 04619; 1 ♂, Nanzheng, Liping, 1540 m, 27���30.VII.2017, coll. Li Henan. Gansu (IZCAS): 1 ♂, Wenxian, Liujiaping, 2100 m, 27.VI.1998, coll. Yao Jian, IZCAS slide no. Geom-04617; 1 ♂, Wenxian, Bikou, 620 m, 15��� 16.VIII.2014, coll. Ban Xiaoshuang et al.; 1 ♂, Chengxian, Feilongxia, 1020 m, 4.VII.1999, coll. Yao Jian, IZCAS slide no. Geom-04614; 2 ♂, Wenxian, Bikou protect station, 645 m, 6���7.VIII.2016, coll. Cheng Rui et al., IZCAS slide no. Geom-04585, 04602; 1 ♂, Wenxian, Bikou Bifenggou, 720 m, 8���10.VIII.2016, coll. Cheng Rui et al. Zhejiang (IZCAS): 1♀, Tienmu Shan, VI.1936, coll. O. Piel; 2 ♂ 1♀, Lin���an, West Tianmu Shan, 400 m, 26���27., 30.VII.2003, coll. Xue Dayong, IZCAS slide no. Geom-03405. Hubei (IZCAS): 1 ♂, Badong, 1450 m, 19.V.1989, coll. Li Wei; 1 ♂, Xingshan, Longmenhe, 1280���1350 m, 14.VI.���17.VII.1993, coll. Song Shimei et al.; 3 ♂, Yunxi, Guanyinzhen, 289���305 m, 4���5.VIII.2014, coll. Liu Shuxian et al.; 2 ♂, Yingshan, Taohuachong, 590 m, 23��� 27.VI.2014, coll. Jiang Nan et al.; 2 ♂, Luotian, Qingtaiguan, 560 m, 1���4.VII.2014, coll. Cui Le et al., IZCAS slide no. Geom-04613. Jiangxi (IZCAS): 2 ♂, Jiulian Shan, 14, 29.VI.1975, coll. Song Shimei et al.; 1 ♂, Jinggang Shan, 5.VII.1975, coll. Zhang Baolin. Hunan (IZCAS): 1 ♂, Changsha, 21.VI.1988, coll. Zuo Yuxiang; 1 ♂, Mang Shan, 20.VII.1981; 1 ♂, Yanling, Taoyuandong, 631 m, 4���8.VII.2008, coll. Chen Fuqiang; 1 ♂, Guidong, Sidu, 774 m, 9��� 12.VII.2008, coll. Chen Fuqiang; 1 ♂, Shimen, Hupingshan, Shenjingzhai, 444 m, 19.X.2014, coll. Zhao Kaidong; 1 ♂, Sangzhi, Bamaoxi, Shuitianba, 370 m, 31.VII.2009, 5.VIII.2009, coll. Wei Zhongmin; 3 ♂, Zhangjiajie, Wulingyuan, Wenfeng, 350 m, 2015. IX.17, coll. Zhao Kaidong, IZCAS slide no. Geom-04672; 1 ♂, Zhangjiajie, Wulingyuan, Huanglonglu, 348 m, 18.IX.2015, coll. Zhao Kaidong. Fujian (IZCAS): 1 ♂, Chong���an Xingcun, Caodun, 250���280 m, 11.VI.1960, coll. ZhangYiran; 6 ♂, Wuyi Shan, Sangang (Chong���an, Xingcun, Sangang), 700 m, 24.V.1960, 1.X.1981, 1.VII.1982, 4.VI.1983, 19.VII.1983, 9.VII.2006, coll. Zhang yiran et al., IZCAS slide no. Geom-04609; 2 ♂, Jiangle, Longqi Shan, 650 m, 13, 21.VIII.1991, coll. Song Shimei; 1 ♂, Meihuashan, Yunshan Station, 459 m, 18.VII.2013, coll. Xue Dayong. Guangdong (IZCAS): 1 ♂, Shixing, Chebaling, 365���401 m, 22��� 26.VII.2008, coll. Chen Fuqiang. Guangxi (IZCAS): 1 ♂, Guilin, Yanshan, 200 m, 12.VII.1963, coll. Wang Chunguang; 1 ♂, Mao���er Shan, Gaozhai, 448 m, 13���15.VIII.2012, coll. Yang Chao et al. Sichuan (IZCAS): 5 ♂, Emei Shan, Qingyinge, 800���1000 m, 22.IV.���25.VII.1957, 16���19.IX.1957, coll. Zhu Fuxing et al., IZCAS slide no. Geom-04622, 04623; 1 ♂, Fengdu Shiping, 610 m, 5.X.1994, coll. Song Shimei; 4 ♂, Wanxian, Wang���erbao, 1200 m, 12.VIII.1993, coll. Song Shimei, IZCAS slide no. Geom-04608; 1 ♂, Jianyang, Huaiyuan, 350 m, 7.V.1994, coll. Zhou Ji (presented by insect specimen room of Nankai University), IZCAS slide no. Geom-04621. Chongqing (IZCAS): 2 ♂, Chengkou, 27.VII.2013, coll. Cheng Rui; 4 ♂, Chengkou, Daba Shan, Qinglongxia, 950 m, 28.VII.2013, coll. Cheng Rui. Guizhou (IZCAS): 1 ♂, Jiangkou, Fanjing Shan, 500 m, 11.VII.1988, coll. Li Wei. Gansu (ZFMK): 1♀, Kansu orient., Hweisi, Tsinlingschan montes occ., 1500 m, May. Zhejiang (ZFMK): 2 ♂, West-Tien-Mu-Shan, 1600m, 22.VIII.1932, 24.IX.1932, coll. H. H��ne; 1 ♂, Wenchow, VI.1939, coll. H. H��ne; 5 ♂ 1♀, Mokanshan, 30.viii.1926, 1930, coll. H. H��ne. Hunan (ZFMK): 7 ♂, Hoeng-Shan, 900 m, V���VII., IX., XI.1933, coll. H. H��ne. Fujian (ZFMK): 6 ♂ 1♀, Kuatun, 2300m, 27,40 n. Br./ 117,40 ��.L., IV���VII.1938, coll. H. H��ne. Guangdong (ZFMK): 1 ♂, without data. Chongqing (ZFMK): 1 ♂, Chungking, Sept. 1941, Dr. Noll. Sichuan (ZFMK): 1 ♂ 1♀, Ningwuan, 1933, coll. Wehrli; 1♀, Tibet, Tschang Tang, Dsagar Berge, 4500 m, Juli. Distribution. China (Henan, Shaanxi, Gansu, Zhejiang, Hubei, Jiangxi, Hunan, Fujian, Guangdong, Guangxi, Sichuan, Chongqing, Guizhou). Etymology. The species is dedicated to Dr. Dieter St��ning, Bonn, Germany, who contribute greatly to the taxonomy of Geometridae.
Published as part of Xue, Dayong, Cui, Le & Jiang, Nan, 2018, A review of Problepsis Lederer, 1853 (Lepidoptera: Geometridae) from China, with description of two new species, pp. 101-127 in Zootaxa 4392 (1) on pages 106-108, DOI: 10.11646/zootaxa.4392.1.5, http://zenodo.org/record/1195157