Yuelushannus jinyuanensis Irfan, Zhang & Peng

Irfan, Muhammad, Zhou, Gu-Chun, Peng, Xian-Jin & Zhang, Zhi-Sheng, 2025, Survey of Linyphiidae spiders (Arachnida: Araneae) from some Oriental Regions of China, Megataxa 15 (1), pp. 1-248 : 230-233

Yuelushannus jinyuanensis Irfan, Zhang & Peng , sp. n.

(DZ元ḂḆƜe)

Figures 303 , 304 , 315

Types. Holotype ♀ ( HNU–HN– IV–1755 ), CHINA, Hunan Prov.: Ningxiang Co., Huaminglou Town , Jinyuan Vill. , 28.1002°N, 112.5277°E, 187 m, 24.X.2017, G.C. Zhou leg.

Etymology. The specific epithet is derived from the type locality; adjective.

Diagnosis. Yuelushannus jinyuanensis sp. n. resembles Y. wenfengensis sp. n. in having the similar spermathecae and copulatory ducts ( Figs 303A–C , Figs 305A–C ), but can be distinguished by the dorsal plate longer than wide posteriorly in Y. jinyuanensis sp. n. ( Figs 303A–C ), vs. wider than long in Y. wenfengensis sp. n. ( Figs 305A–C ); spermathecae not touches the posterior margin of the epigynal plate in Y. jinyuanensis sp. n. ( Figs 303A–C ), vs. touches the posterior margin of the epigynal plate in Y. wenfengensis sp. n. ( Figs 305A–C ).

Description. Female ( Figs 304A, B ). Total length: 1.98. Carapace 1 long, 0.84 wide, cephalic region slightly elevated, yellowish brown, cervical, fovea and radial grooves distinct. Clypeus 0.18 high. Chelicerae with five promarginal and five retromarginal teeth. Sternum longer than wide, brownisg grey with microsetae. Eyes: AER recurved, PER procurved, slightly wider. Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.07, PLE 0.07, AME–AME 0.03, PME–PME 0.07, AME–ALE, 0.03 PME–PLE 0.06, AME–PME 0.07, ALE–ALE 0.31, PLE–PLE 0.34, ALE–PLE contiguous. Length of legs: I 2.66 (0.81, 0.95, 0.53, 0.37), II 2.39 (0.71, 0.84, 0.51, 0.33), III 2.05 (0.56, 0.73, 0.45, 0.31), IV 2.75 (0.82, 1.02, 0.59, 0.32). TmI 0.24, TmIV present. Tibial spine formula: 2-2-1-1. Opisthosoma 1.21 long, 0.84 wide, oval, dark grey, anteriorly with two pairs of sigillae, with irregular patches; ventral side grey.

Epigyne ( Figs 303A–C ) ventral plate (VP) sclerotized, wider than long, completely covering the dorsal plate (DP). Copulatory openings (CO) present in the atrium between the ventral and dorsal plate. Dorsal plate (DP) longer than wide posteriorly; copulatory ducts (CD) form spiral loop before joining the spermathecae; spermathecae (S) round, present posterio-lateraly on the dorsal plate and not touches the posterior margin of the epigynal plate, pointing away from each other; fertilization ducts (FD) extending mesally.

Male. Unknown.

Distribution. Known only from the type locality (Hunan Province, Fig. 315 ).

Figures

FIGURE 303. Yuelushannus jinyuanensis sp. n., female holotype. A, B Epigyne, ventral view; C Vulva, dorsal view.Abbreviations: CD—copulatory duct; CO—copulatory opening; DP—dorsal plate; FD—fertilization duct; S—spermatheca; VP—ventral plate.

FIGURE 304. Yuelushannus jinyuanensis sp. n., female holotype. A Habitus, dorsal view; B Habitus, ventral view.

FIGURE 305. Yuelushannus wenfengensis sp. n., female holotype.A, B Epigyne, ventral view; C Vulva, dorsal view.Abbreviations: CD—copulatory duct; CO—copulatory opening; DP—dorsal plate; FD—fertilization duct; S—spermatheca; VP—ventral plate.

FIGURE 315. Distribution of Linyphiidae species in Hunan Prov.: 1. Acanoides cornutus sp. n.; 2. Acanoides ningxiangensis sp. n.; 4. Auriculaiana yongshunensis sp. n.; 5. Baryphyma xiaoxiense sp. n.; 6. Bathyphantes paracymbialis Tanasevitch, 2014; 7. Bathyphantes pseudogracilis sp. n.; 8. Bifurcia ramosa (Li & Zhu, 1987); 9. Bolyphantes arcuatus sp. n; 10. Bolyphantes gladius sp. n.; 11. Capsulia tianmushana (Chen & Song, 1987); 12. Dicristatus cordatus sp. n.; 13. Diplocephalus circularis sp. n.; 14. Drapetisca boletus sp. n.; 15. Drapetisca nanpingensis sp. n.; 16. Drapetisca yuelushanensis sp. n.; 17. Erigone prominens Bösenberg & Strand, 1906; 18. Frontinella zhui Li & Song, 1993; 19. Gnathonarium dentatum (Wider, 1834); 20. Gnathonarium gibberum Oi, 1960; 21. Oedothorax fortis sp. n.; 22. Tapinocyba sulcata sp. n.; 23. Himalaphantes azumiensis (Oi, 1979); 24. Hylyphantes graminicola (Sundevall, 1830); 25. Kaestneria bicultrata Chen & Yin, 2000; 26. Lepthyphantes frondeus sp. n.; 27. Microlinyphia zhejiangensis (Chen, 1991); 3. Microneta acutalis sp. n.; 28. Nematogmus sanguinolentus (Walckenaer, 1841); 29. Nippononeta alpina (Li & Zhu, 1993); 30. Nippononeta coreana (Paik, 1991); 31. Oia baiyunensis sp. n.; 32. Oia lata sp. n.; 33. Oia yinae sp. n.; 34. Oilinyphioides triangularis sp. n.; 35. Paikiniana lurida (Seo, 1991); 36. Parameioneta bilobata Li & Zhu, 1993; 37. Prosoponoides sinensis (Chen, 1991); 38. Ryojius lianghekouensis sp. n.; 39. Ryojius nanyuensis (Chen & Yin, 2000); 40. Scotinotylus longiprojectus sp. n.; 41. Shaanxinus insectus sp. n.; 42. Shaanxinus longiembolus sp. n.; 43. Sinolinyphia henanensis (Hu, Wang & Wang, 1991); 44. Syedra yuelushanensis sp. n.; 45. Tenuiphantes taipingensis sp. n.; 46. Ummeliata feminea (Bösenberg & Strand, 1906); 47. Ummeliata insecticeps (Bösenberg & Strand, 1906); 48. Walckenaeria xingdouensis sp. n.; 49. Walckenaeria extenuata sp. n.; 50. Walckenaeria yanglinensis sp. n.; 51. Wuliphantes tongluensis (Chen & Song, 1988); 52. Yuelushannus diaotangensis sp. n.; 53. Yuelushannus jinyuanensis sp. n.; 54. Yuelushannus wenfengensis sp. n..