Survey of Linyphiidae spiders (Arachnida: Araneae) from some Oriental Regions of China
Authors: IRFAN MUHAMMAD , ZHOU GU-CHUN , PENG XIAN-JIN , ZHANG ZHI-SHENG 
Published: January 2025

A total of 107 species belonging to 61 genera have been recorded from China (Anhui, Chongqing, Hainan, Hubei, Hunan, Guangdong, Gansu, Guangxi, Guizhou, Sichuan, and Xizang), including 74 new species, and five new genera which are described here: Acanoides cornutus Irfan, Zhang & Peng, sp. n. (♀, Hunan), A. ningxiangensis Irfan, Zhang & Peng, sp. n. (♂♀, Hunan); Asiagone xingdouensis Irfan, Zhang & Peng, sp. n. (♀, Hubei); Auriculaiana yongshunensis Irfan, Zhang & Peng, sp. n. (♀, Hunan); Baryphyma xiaoxiense Irfan, Zhang & Peng, sp. n. (♂, Hunan); Bathyphantes paracymbialis Tanasevitch, 2014 (♂♀, Chongqing, Guizhou, Hubei and Hunan), B. pseudogracilis Irfan, Zhang & Peng, sp. n. (♂♀, Hunan); Bifurcia cochlearis Irfan, Zhang & Peng, sp. n. (♂, Hubei), B. ramosa (Li & Zhu, 1987) (♂♀, Guizhou, and Hunan); Bolyphantes aculeatus Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou), B. arcuatus Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou, and Hunan), B. gladius Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou, and Hunan); Capsulia tianmushana (Chen & Song, 1987) (♂♀, Hubei and Hunan); Collinsia inerrans (O. Pickard-Cambridge, 1885) (♂♀, Sichuan); Dicristatus cordatus Irfan, Zhang & Peng, sp. n. (♀, Hubei and Hunan), D. denticulatus Irfan, Zhang & Peng, sp. n. (♂, Guizhou); Dicymbium sinofacetum Tanasevitch, 2006 (♂♀, Hainan); Diplocephaloides cucullus Irfan, Zhang & Peng, sp. n. (♀, Guizhou); Diplocephalus circularis Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing, Hubei and Hunan), D. tongrenensis Irfan, Zhang & Peng, sp. n. (♀, Guizhou); Drapetisca boletus Irfan, Zhang & Peng, sp. n. (♀, Hunan), D. nanpingensis Irfan, Zhang & Peng, sp. n. (♂♀, Hunan), D. yuelushanensis Irfan, Zhang & Peng, sp. n. (♀, Hunan); Erigone kazhiensis Irfan, Zhang & Peng, sp. n. (♂, Sichuan), E. prominens Bösenberg & Strand, 1906 (♂♀, Hubei and Hunan); Frontinella zhui Li & Song, 1993 (♂♀, Chongqing, Hubei and Hunan); Gnathonarium dentatum (Wider, 1834) (♂♀, Chongqing, Hubei and Hunan), G. gibberum Oi, 1960 (♂♀, Hunan); Gonatium absidatum Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou); Gongylidioides acuminatus Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing), G. ensis Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing and Hubei), G. microdontus Irfan, Zhang & Peng, sp. n. (♂♀, Hubei); Gongylidium dawolongense Irfan, Zhang & Peng, sp. n. (♀, Hubei), G. demersum Irfan, Zhang & Peng, sp. n. (♀, Guizhou), G. minutum Irfan, Zhang & Peng, sp. n. (♀, Hubei), G. uncatum Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing and Hubei); Gracilentus mangshanensis Irfan, Zhang & Peng, sp. n. (♀, Hunan); Himalaphantes azumiensis (Oi, 1979) (♂♀, Chongqing, Guangdong and Hunan); Houshenzinus rimosus Tanasevitch, 2006 (♂, Hubei); Hylyphantes graminicola (Sundevall, 1830) (♂♀, Chongqing, Guizhou, Hubei and Hunan); Indophantes wushanensis Irfan, Wang & Zhang, 2023 (♂♀, Chongqing and Hubei); Kaestneria bicultrata Chen & Yin, 2000 (♂♀, Hunan); Lenis Irfan, Zhang & Peng, gen. n., L. longiabdominis Irfan, Zhang & Peng, sp. n. (♂♀, Hubei); Lepthyphantes ellipticus Irfan, Zhang & Peng, sp. n. (♂♀, Hubei), L. frondeus Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing, Hubei and Hunan); Linyphia songziyuanensis Irfan, Zhang & Peng, sp. n. (♀, Hubei); Mecopisthes rhomboidalis Gao, Zhu & Gao, 1993 (♀, Hunan); Micrargus longiembolus Irfan, Zhang & Peng, sp. n. (♂♀, Sichuan); Microlinyphia zhejiangensis (Chen, 1991) (♀, Hunan); Microneta acutalis Irfan, Zhang & Peng, sp. n. (♂♀, Hunan), M. circumacta Irfan, Zhang & Peng, sp. n. (♂, Xizang), M. maliuxiensis Irfan, Zhang & Peng, sp. n. (♀, Hubei); Nasoonaria nonggangensis Irfan, Zhang & Peng, sp. n. (♂♀, Guangxi); Nematogmus ligulatus Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing and Hubei), N. sanguinolentus (Walckenaer, 1841) (♂♀, Chongqing, Hubei and Hunan); Nippononeta alpina (Li & Zhu, 1993) (♂♀, Chongqing and Hunan), N. coreana (Paik, 1991) (♂♀, Chongqing, Guangdong, Guizhou, Hubei and Hunan); Oedothorax collinus Ma & Zhu, 1991 (♂♀, Hubei), O. fortis Irfan, Zhang & Peng, sp. n. (♂♀, Hunan); Oia baiyunensis Irfan, Zhang & Peng, sp. n. (♂♀, Hunan), O. lata Irfan, Zhang & Peng, sp. n. (♂♀, Hunan), O. yinae Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing and Hunan); Oilinyphia daxuensis Irfan, Zhang & Peng, sp. n. (♂♀, Xizang), O. wenfengensis Irfan, Zhang & Peng, sp. n. (♀, Hunan), O. xinqiaoensis Irfan, Zhang & Peng, sp. n. (♀, Chongqing); Oilinyphioides Irfan, Zhang & Peng, gen. n., O. triangularis Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing and Hunan); Paikiniana lurida (Seo, 1991) (♂♀, Hubei and Hunan); Parameioneta bilobata Li & Zhu, 1993 (♂♀, Hubei and Hunan); Platyspira tanasevitchi Song & Li, 2009 (♂♀, Hubei); Prosoponoides sinensis (Chen, 1991) (♂♀, Chongqing, Hubei and Hunan); Ryojius fanjingshanensis Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou), R. fodingshanensis Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou), R. lianghekouensis Irfan, Zhang & Peng, sp. n. (♀, Hubei and Hunan), R. nanyuensis (Chen & Yin, 2000) (♂♀, Hunan); Scotinotylus guizhouensis Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing and Guizhou), S. longiprojectus Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou, Hubei and Hunan); Shaanxinus insectus Irfan, Zhang & Peng, sp. n. (♀, Hunan), S. longiembolus Irfan, Zhang & Peng, sp. n. (♂♀, Hubei and Hunan), S. ovatus Irfan, Zhang & Peng, sp. n. (♂, Hunan); Sinogone. puteus Irfan, Zhang & Peng, sp. n. (♂, Hubei); Sinolinyphia henanensis (Hu, Wang & Wang, 1991) (♂♀, Chongqing and Hunan); Spelaeus Irfan, Zhang & Peng, gen. n., S. cicatrix Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou); Syedra yuelushanensis Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing, Hubei and Hunan); Taibaishanus badongensis Irfan, Zhang & Peng, sp. n. (♂, Hubei); Tapinocyba cornuta Irfan, Zhang & Peng, sp. n. (♂♀, Guizhou), T. pingshanensis Irfan, Zhang & Peng, sp. n. (♀, Guizhou), T. sulcata Irfan, Zhang & Peng, sp. n. (♂♀, Hunan); Tenuiphantes aduncus (Zhu, Li & Sha, 1986) (♂♀, Gansu), T. cauda Irfan, Zhang & Peng, sp. n. (♂, Anhui), T. taipingensis Irfan, Zhang & Peng, sp. n. (♂, Hunan); Trematocephalus cristatus (Wider, 1834) (♂♀, Guizhou); Ummeliata feminea (Bösenberg & Strand, 1906) (♂♀, Chongqing, Hubei and Hunan), U. insecticeps (Bösenberg & Strand, 1906) (♂♀, Chongqing, Guangdong, Hubei and Hunan); Walckenaeria asymmetrica Song & Li, 2011 (♂♀, Guizhou), W. enshiensis Irfan, Zhang & Peng, sp. n. (♂♀, Hubei), W. extenuata Irfan, Zhang & Peng, sp. n. (♂♀, Hubei and Hunan), W. furcillata (Menge, 1869) (new to China) (♀, Xizang), W. sinuosa Irfan, Zhang & Peng, sp. n. (♂♀, Chongqing), W. xingdouensis Irfan, Zhang & Peng, sp. n. (♀, Guizhou, Hubei and Hunan), W. yanglinensis Irfan, Zhang & Peng, sp. n. (♂♀, Hunan); Wulinggone Irfan, Zhang & Peng, gen. n., W. qizimeiensis sp. n. (♂♀, Chongqing and Hubei); Wulingnus Irfan, Zhang & Peng, gen. n., W. furcatus Irfan, Zhang & Peng, sp. n. (♂♀, Hubei), W. inversus Irfan, Zhang & Peng, sp. n. (♀, Hubei); Wuliphantes tongluensis (Chen & Song, 1988) (♂♀, Chongqing, Hubei and Hunan); Yuelushannus diaotangensis Irfan, Zhang & Peng, sp. n. (♀, Hunan); Y. jinyuanensis Irfan, Zhang & Peng, sp. n. (♀, Hunan), Y. wenfengensis Irfan, Zhang & Peng, sp. n. (♀, Hunan). With the description of 74 new species and 5 new genera, the number of Linyphiidae species known from China has increased from 533 in 175 genera to 607 in 180 genera. Among the new species described here, thirty-seven are known by single sex (11 with males and 26 with females). Following new combinations are established Microneta orthogonia (Irfan, Wang & Zhang, 2023) comb. n. (ex. Agyneta); Oilinyphia pengqi (Lin & Li, 2024) comb. n. (ex. Chrosiothes, family Theridiidae); Shaanxinus griseolineatus (Schenkel, 1936) comb. n. (ex Gongylidioides); Lepthyphantes cultellifer Schenkel, 1936, transferred to Acanoides Sun, Marusik & Tu, 2014, as Acanoides cultellifer (Schenkel, 1936) comb. n. (ex Lepthyphantes); Baryphyma Simon, 1884, Scotinotylus Simon, 1884, and Walckenaeria furcillata (Menge, 1869) have been recorded for the first time in China. Detailed descriptions of genitalic characters and somatic features of new and already known species by means of photographs, as well as comparisons with closely related species, are provided.