Xanthostigma gobicola U. Aspock & H. Aspock 1990
Creators: name: Wu, Zhigang
name: Liu, Xingyue
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Raphidioptera
Raphidiidae
Xanthostigma
Xanthostigma gobicola

description: Xanthostigma gobicola U. Aspöck & H. Aspöck, 1990 (Figs 1, 3–8)   
 Xanthostigma gobicola U. Aspöck & H. Aspöck, 1990: 97. Type locality: Mongolia (Omnogovi: Churin-Chalka-Nuru).   
Male. Body length 8.1–9.8 mm; forewing length 6.9–7.2 mm, hindwing length 6.2–6.6 mm.  
Head (Fig. 1) ovoid, posteriorly tapering, black, slightly shiny blonde green; vertex with three indistinct reddish brown longitudinal stripes at middle and lateral margins; clypeus pale brown, medially with a yellow subtriangular marking. Compound eyes grayish brown. Antennal sclerite yellow; antennae yellow, but flagellum pale brown except for proximal 6-8 flagellomeres yellow. Mouthparts yellow; mandibles with distal half pale brown, maxillary and labial palpi blackish brown.  
Pronotum (Fig. 1) long, slender, dark brown, respectively with a yellowish brown stripes on anteromedial and posteromedial portions, and posteriorly with a pair of yellowish longitudinal stripes near lateral margins; meso- and metathorax blackish brown, mesonotum medially with a yellow subtriangular marking on anterior margin and with scutellum yellow, metanotum with only scutellum yellow. Legs yellow with brownish setae, distal two tarsomeres blackish brown. Wings hyaline; pterostigma pale yellow, medially crossed by a short oblique veinlet; veins blackish brown, proximal half of C and R veins yellow. Rs trifurcated distad.  
Abdomen (Fig. 1) blackish brown; all pregenital segments dorsally with a pair of yellowish vittae laterally and with a yellowish vitta centrally; each sternum with a transverse yellowish marking posteriorly. Genital segments blackish brown, tergite 9 with yellowish markings on posteromedial and lateral margins, ectoproct laterally with yellowish markings. Tergite 9 (Fig. 3) in lateral view nearly rectangular, in dorsal view with arcuate lateral margins and posterior incision. Sternite 9 present as a pair of tiny, slender sclerites. Gonocoxite 9 (Fig. 5) longitudinally directed, nearly as long as tergite 9, about 2.5 times as long as wide, ventral margin without claw-like process or dentation; gonostylus 9 elongate, slightly and arcuately incurved, terminally bearing two short, hook-like processes. Hypovalva (Fig. 4) about 2/3 length of tergite 9, anterior portion laterally extending into an arcuate beam, remaining part narrowly blade-like. Paramere (Fig. 5) narrow, located at dorsal portion of base of endophallus, with dense tiny dentation. Gonarcus absent. Endophallus (Fig. 5) slightly longer than tergite 9. Ectoproct (Figs 3, 5) broad, anteriorly with an arcuate transverse suture, and strongly expanded posteroventrad, forming subtrapezoidal posterior incision in dorsal view.  
Female. Body length with ovipositor 11.6–14.6 mm, body length without ovipositor 8.1–11.4 mm; forewing length 7.7–8.9 mm, hindwing length 7.1–7.9 mm.  
Sternite 7 (Figs 6–7) subtrapezoidal in lateral view and nearly rectangular in ventral view, with truncate posterior margin. Tergite 8 with nearly truncate anterior margin and arcuate posteroventral margin in lateral view. No subgenitale discernible. Ectoproct in lateral view nearly rectangular, slightly wider than long. Atrium bursae (Fig. 8) richly pleated, laterally bearing a pair of slender, anteriorly protruding lobes, with broad transition into sacculus bursae which extends into segment 7 and narrowed anteriorly; receptaculum seminis (Fig. 6) slightly shorter than sacculus bursae, distally globally broadened; glandulae receptaculi (Fig. 6) distally with two bulbs on each short thread-like stalk.  
Material examined. CHINA: 1♂, Beijing, Mentougou, Baihuashan, 1 200 m, 30 June 2005, Mingxia Sun (CAU); 4♀, Beijing, Mentougou, Baihuashan, 1 200 m, 30 May 1973, Yongshan Shi (IZCAS); 2♂ 2♀, Beijing, Mentougou, Xiaolongmen, 19 June 1988, Weiwei Zhang (CAU); 1♀, Beijing, Mentougou, Xiaolongmen, 14 July 2005, Kuiyan Zhang (CAU); 1♂ 1♀, Beijing, Mentougou, Longmenjian, 3 June 2004, Weihai Li (CAU); 2♂ 3♀, Beijing, Mentougou, Longmenjian, 3 June 2004, Xingyue Liu (CAU); 1♀, Beijing, Mentougou, Longmenjian, Guigu, 4 June 2004, Xingyue Liu (CAU); 1♂ 1♀, Beijing, Mentougou, Xiaolongmen, 8 June 2004 (CAU); 1♀, Beijing, Mentougou, Xiaolongmen, 9 July 2011, Ulrike Aspöck (CAU); 1♂ 4♀, Beijing, Yanqing, Songshan, Feng Yuan (CAU); 2♀, Beijing, Yanqing, Songshan, 850 m, 14 July 2003, Xunan Shan (CAU); 6♂ 2♀, Beijing, Miyun, Potoulinchang, 23 May 2004, Feng Yuan (CAU); 1♀, Beijing, Changping, Huyu, 22 May 2011, Xingyue Liu (CAU); 5♂ 3♀, Beijing, Yanqing, Songshan, 2/ 3 June 2010 (CAU); 2♂ 3♀, Hebei, Yuxian, Xiaowutaishan, 29 June 2005, Xingyue Liu (CAU); 3♂ 2♀, Hebei, Yuxian, Xiaowutaishan, 29 June 2005, Hongxia Liu (CAU); 2♂, Hebei, Yuxian, Xiaowutaishan, Jinhekougou, 1 June 2004, Xingyue Liu (CAU); 2♀, Hebei, Yuxian, Xiaowutaishan, 1 200 m, 26/ 27 July 2000, Yue Zhang & Peng Wang (CSUFT); 2♂ 5♀, Hebei, Yuxian, Xiaowutaishan, Jinhekougou, 29 June 2004, Xingyue Liu (CAU); 1♂ 2♀, Hebei, Yuxian, Xiaowutaishan, Jinhekougou, 1 June 2004, Xingyue Liu (CAU); 3♂ 1♀, Hebei, Yuxian, Xiaowutai, 29 June 2005, Hui Dong (CAU); 1♂, Hebei, Zhuolu, Yangjiaping, 3 July 2005, Xingyue Liu (CAU); 1♂, Hebei, Chengde, Wulingshan, Dujuanfeng, 7 July 2008, Yan Li (CAU); 1♂ 2♀, Hebei, Chengde, Wulingshan, Dagou, 23 May 2013, Wei Zhang (CAU); 2♀, Ningxia, Helanshan, Xiaokouzi, 27 May 1987 (CAU); 1♀, Ningxia, Helanshan, Suyukou, 2 000 m, 4 July 2007, Gang Yao (CAU); 1♂, Neimenggu, Helanshan, Beisi, 2 000 m, 7 July 2007, Gang Yao (CAU); 1♀, Neimenggu, Helanshan, Beisi, 5 September 1990 (CAU); 1♀, Neimenggu, Helanshan, Nansi, 3 200 m, 29 July 2013, Xiumei Lu (CAU); 1♀, Neimenggu, Helanshan, Halawumigou, 2 244 m, 30 July 2010, Meiying Lin (CAU); 1♀, Neimenggu, Helanshan, Xuelingzi, Nansi, 2 160 m, 29 July 2010, Aimin Shi & Guangyu Zhao (CAU); 1♀, Neimenggu, Saihanwula, Zhenggou, 1 200 m, 23 July 2013, Xiumei Lu (CAU); 1♂, Shaanxi, Huashan, 1963, Io Chou (CAU); 1♀, Shaanxi, Ganquan, Qingquan, 26 June 1971, Chikun Yang (CAU); 1♂, Yuhianghien, 18 May 1916 (CAU); 1♀, Yaot’eou, 6 June 1916, Matindife Navin (CAU).  
Distribution. China (Beijing, Hebei, Shanxi, Shaanxi, Ningxia, Neimenggu); Mongolia.
description: Published as part of Wu, Zhigang & Liu, Xingyue, 2016, The species of the snakefly genus Xanthostigma (Raphidioptera: Raphidiidae) from China, pp. 109-116 in Zoological Systematics 41 (1) on pages 111-113, DOI: 10.11865/zs.201608, http://zenodo.org/record/5366872