Drapetisca nanpingensis 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 : 49-50

Drapetisca nanpingensis Irfan, Zhang & Peng , sp. n.

(南屏He)

Figures 62–64 , 315 .

Types. Holotype ♂ ( HNU–HN– IV–1406 ), CHINA, Hunan Prov.: Changde City, Shimen Co., Hupingshan Town , Nanping Township , Maozhu River , 30.03738°N, 110.91102°E, 284 m, 14.X.2004, C. Wang et al. leg. Paratype: 1♀, with same data as for holotype male ( HNU–HN– IV–1406 ).

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

Diagnosis. Drapetisca nanpingensis sp. n. can be distinguished from all other congeners by the lamella characteristica L-shaped in retrolateral view; distal part of terminal apophysis kidney-shaped in retrolateral view; distal arm of paracymbium anchor-shaped in retrolateral view; thumb disc-shaped in prolateral view ( Figs 62A– D ); proximal cymbial apophysis absent ( Fig. 62C ). The female resembles those of D. boletus sp. n. and D. socialis in having similar spermatheca ( Figs 60C–E ; Figs 63E, F ; Tu & Li 2006, figs 22–26), and can be distinguished by the epigyne C-shaped posteriorly in D. nanpingensis sp. n. ( Fig. 63C ; vs. mashroom-like in D. boletus sp. n. and somewhat rectangular in D. socialis ).

Description. Male (holotype, Figs 64A, B ): Total length: 2.46. Carapace 1.17 long, 1.02 wide, brown, fovea, cervical and radial grooves distinct. Clypeus 0.0.23 high. Chelicerae with two promarginal and two retromarginal teeth. AER recurved, PER straight, slightly wider. Sternum wider than long, dark brown, with microsetae. Eye sizes and interdistances: AME 0.06, ALE 0.07, PME 0.08, PLE 0.08, AME–AME 0.03, PME–PME 0.05, AME–ALE, 0.07, PME–PLE 0.06, AME–PME 0.08, ALE–ALE 0.38, PLE–PLE 0.40, ALE–PLE contiguous. Length of legs: I 5.89 (1.58, 1.80, 1.57, 0.94), II 5.17 (1.41, 1.65, 1.32, 0.79), III 4.12 (1.17, 1.29, 1.05, 0.61), IV 5.42 (1.50, 1.63, 1.46, 0.83). Tibial spine formula: 2- 2-2-2. TmI 0.51 and TmIV present. Opisthosoma 1.24 long, 0.88 wide, oval, dusky grey, dorsally with distinct black pattern with white patches; ventral side blackish brown.

Palp ( Figs 62A–D ): Femur unmodified, as long as patella and tibia. Patella as long as tibia, ventrally grooved, with a long dorsal spine. Tibia conical, ventrally with outgrowth; with two retrolateral and one dorsal trichobothria. Cymbium unmodified, retrolateral margin with a shallow depression at the base, retrolateral margin protruding towards subtegulum; paracymbium (PC) sclerotized, basal part wider than long, with thick spines, distal arm with small projection at the center, tip with blunt end. Pithook ( PH) invisible on unexpanded palp. Radix (R) longer than wide with Fickert’s gland (fg); terminal apophysis (TA) sclerotized, longer than wide in prolateral view. Lamella characteristica (LC) strongly sclerotized, curved, longer than wide L-shaped in retrolateral view, extending forward; embolus proper (EP) short with pointed tip; attached with disc-shaped thumb (TH).

Female (paratype, Figs 64C, D ): Total length: 1.89. Carapace 0.96 long, 0.72 wide, cephalic region slightly elevated, brown, fovea, cervical and radial grooves distinct. Clypeus 0.19 high. Chelicerae with four promarginal and three retromarginal teeth. Sternum wider than long, dark brown with light patches and microsetae. Eyes: AER recurved, PER slightly recurved. Eye sizes and interdistances:AME 0.05, ALE 0.08, PME 0.07, PLE 0.07, AME–AME 0.03, PME–PME 0.03, AME–ALE, 0.03, PME–PLE 0.05, AME–PME 0.03, ALE–ALE 0.31, PLE–PLE 0.32, ALE–PLE 0.01. Legs with annuli. Length of legs: I 4.42 (1.10, 1.49, 1.14, 0.69), II 3.77 (0.93, 1.24, 0.95, 0.61), III 3.04 (0.93, 0.87, 0.76, 0.48), IV 4 (1.13, 1.23, 1.03, 0.61). Tibial spine formula: 2-2-2- 2. TmI 0.51 and TmIV present. Opisthosoma 1.07 long, 0.64 wide, all other characters same as in male, except lighter in color.

Epigyne ( Figs 63A–F ): Protruding, distal end with well-developed lateral pockets (LP), entrance groove (EG) present inside lateral groove; posterior median plate (PMP) small, somewhat rectangular. Spermathecae (S) long, present antero-laterally.

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

Figures

FIGURE 60. Drapetisca boletus sp. n., female holotype. A, C Epigyne, ventral view; B, D Epigyne, lateral view; E Vulva, dorsal view. Abbreviations: LP—lateral pocket; PMP—posterior median plate; S—spermatheca.

FIGURE 62. Drapetisca nanpingensis sp. n., male holotype. A Palp, prolateral view; B Palp, retrolateral view; C Palp, dorsal view; D Palp, ventral view. Abbreviations: E—embolus; EP—embolus proper; fg—Fickert’s gland; LC—lamella characteristica; MM—median membrane; PC—paracymbium; R—radix; ST—subtegulum; T—tegulum; TA—terminal apophysis; TH—thumb.

FIGURE 63. Drapetisca nanpingensis sp. n., female paratype. A, D, E Epigyne, ventral view; B, C Epigyne, lateral view; F Epigyne, dorsal view. Abbreviations: EG —entrance groove; LP—lateral pocket; PMP—posterior median plate; S—spermatheca.

FIGURE 64. Drapetisca nanpingensis sp. n., male holotype (A, B) and female paratype (C, D). A, C Habitus, dorsal view; B, D 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..