Auriculaiana yongshunensis 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 : 13-14

Auriculaiana yongshunensis Irfan, Zhang & Peng , sp. n.

(AEṆB叶e)

Figures 9 , 10 , 315

Types. Holotype ♀ ( HNU–HN– IV–1807 ), CHINA, Hunan Prov.: Yongshun Co., Xiaoxi Town , Xiaoxi Vill. , 28.79736°N, 110.26686°E, 583 m, 23.IV.2018, D. Li et al. leg.

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

Diagnosis. Auriculaiana yongshunensis sp. n. resembles A. triangularis Irfan, Zhang & Peng, 2022 in having the dorsal plate centrally with a similar depression in ventral view ( Figs 9A–C ; Irfan et al. 2022, figs 27A– C), but can be distinguished by the posterior margin of dorsal plate straight in A. yongshunensis sp. n. ( Figs 9B, C ; vs. round in A. triangularis ).

Description. Female (holotype, Figs 10A, B ): Total length: 1.62. Carapace 0.69 long, 0.49 wide, brown, with fovea, cervical and radial grooves distinct. Clypeus 0.16 high. Chelicerae with five promarginal and six retromarginal teeth. Sternum longer than wide, greenish brown, with microsetae. Eyes; AER straight, PER straight, slightly wider than AER. Eye sizes and interdistances: AME 0.03, ALE 0.04, PME 0.03, PLE 0.04, AME–AME 0.02, PME–PME 0.04, AME–ALE, 0.01, PME–PLE 0.02, AME–PME 0.02, ALE–ALE 0.18, PLE–PLE 0.20, ALE–PLE contiguous. Length of legs: I 1.65 (0.52, 0.58, 0.31, 0.24), II 1.45 (0.49, 0.48, 0.25, 0.23), III 1.31 (0.42, 0.42, 0.24, 0.23), IV 1.62 (0.53, 0.54, 0.29, 0.26). Tibial spine formula: 2-2-1-1. TmI 0.19 and TmIV present. Opisthosoma 0.92 long, 0.67 wide, oval, blackish brown, dorsally with two pairs of sigillae, ventral side grey with light patches.

Epigyne ( Figs 9A–C ): Epigynal plate sclerotized, wider than long; ventral plate (VP) concave; copulatory opening (CO) present at the base of septum; dorsal plate (DP) mid ventrally with depression; copulatory ducts (CD) forming large round loop anteriorly; spermathecae (S) globular, present on dorso-lateral side of dorsal plate, pointing away from each other, spaced by two-third of diameters. Fertilization ducts (FD) present dorso-laterally, extending mesally.

Male. Unknown.

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

Figures

FIGURE 9. Auriculaiana yongshunensis 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.

FIGURE 10. Auriculaiana yongshunensis sp. n., female holotype. A Habitus, dorsal view; B Habitus, ventral view.

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..