Episinus jiangweni Lin & Li, 2021

Lin, Yejie, Marusik, Yuri M., Gao, Caixia, Xu, Hao, Zhang, Xiaoqing, Wang, Ziyi, Zhu, Wenhui & Li, Shuqiang, 2021, Twenty-three new spider species (Arachnida: Araneae) from Asia, Zoological Systematics 46 (2), pp. 91-152 : 138-144

Episinus jiangweni Lin & Li , sp. nov. ( Figs 41A–C , 42A–B , 43A–D, 53C–D )

Diagnosis. The new species is similar to Episinus porteri ( Simon, 1901) but can be distinguished by the long spur on the cymbium, the broad ST, and the C with 1 acute process.

Description. Male (holotype, IZCAS-Ar42458, Figs 41A–C , 43C–D, 53C ). Total length 1.75. Prosoma 0.69 long, 0.50 wide, flat, pale yellow with black edge, anterior part of ocular area with two small processes. Sternum 0.44 long, 0.38 wide, pale yellow. Opisthosoma 0.94 long, 1.00 wide, pale yellow, with large black and white spots. Eyes developed: AME 0.09, ALE 0.06, PME 0.06, PLE 0.06, AME–AME 0.04, AME–ALE 0.03, PME–PME 0.08, PME–PLE 0.03. Clypeus height same as AME diameter. Leg I femur 1.23, patella 0.25, tibia 1.18, metatarsus 1.13, tarsus 0.38. Patella and tibia II–IV: 0.75, 0.50, 1.13. Leg I yellow, femur black in dorsal view, with a line of dorsal bristles; patella, tibia tip, metatarsus, and tarsus with black rings. Legs II and IV same as leg I; leg III pale yellow, without black rings.

Palp ( Figs 41A–C , 43C–D): tibia long; ST broad; E long and slender; TTA with 2 small basal protuberances, handleshaped structure at end; conductor scaphoid, with one acute process.

Female (paratype, IZCAS-Ar42459, Figs 42A–B , 43A–B, 53D ). Total length 2.40. Prosoma 0.75 long, 0.75 wide, flat, pale yellow with black edge, anterior part of ocular area with two indistinct processes. Sternum 0.50 long, 0.45 wide, pale yellow. Opisthosoma 1.68 long, 1.63 wide, brown with white spots. Eyes developed. Leg I yellow, femur black in dorsal view, with a line of dorsal bristles; patella, tibia tip, metatarsus and tarsus with black rings. Leg IV same as leg I; legs II–III pale yellow, without black rings.

Epigynum ( Figs 42A–B , 43A–B) flat; S coiled; CDs short, opening to the anterior margin of atrium; FDs short, linear.

Material examined. Holotype ♂, China: Yunnan, Menglun (21.9108°N, 101.2710°E; elev. ca. 572m), 19–26 May 2007, leg. Guo Zheng (IZCAS-Ar42458) . Paratypes. 1♀ (IZCAS-Ar42459), Menglun Nature Reserve (21.9077°N, 101.2663°E; elev. ca. 569 m), 19–25 February 2007 ; 1♀ (IZCAS-Ar42460), Menglun (21.9173°N, 101.2750°E; elev. ca. 558 m), 10–20 June 2007, leg. Guo Zheng.

Distribution. Known only from the type locality.

Etymology. The species is named after the famous director Mr. Wen Jiang, in honor of his tremendous impact on Chinese cinema and is a noun (name) in genitive case.

Figures

Figure 41. Episinus jiangweni Lin & Li, sp. nov., holotype male, left palp. A. Prolateral view; B. Ventral view; C. Retrolateral view. Scale bar=0.1mm.

Figure 42. Episinus jiangweni Lin & Li, sp. nov., paratype female. A. Epigyne, ventral view; B. Vulva, dorsal view. Scale bars = 0.02mm.

Figure 53. Habitus of six new Theridiidae species, male dorsal view (A–C, E, G–L), lateral view (H, J, L) and female dorsal view (B, D, F, H). A–B. Episinus bonjovi Lin & Li, sp. nov.; C–D, E. jiangweni Lin & Li, sp. nov.; E–F. E. tongyani Lin & Li, sp. nov.; G–H. Meotipa luoqiae Lin & Li, sp. nov.; I–J. M. menglun Lin & Li, sp. nov.; K–L. M. zhengguoi Lin & Li, sp. nov. Scale bars= 1.0mm.