Lathys spiralis Zhang, Hu & Zhang, 2012, sp. nov.

• Main Authors: Zhang, Zhi-Sheng, Hu, Dong-Sheng, Zhang, Yao-Guang
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Araneae; Dictynidae; Lathys; Lathys spiralis; Sakhalin
• Online Access: https://dx.doi.org/10.5281/zenodo.6167581; https://zenodo.org/record/6167581

Lathys spiralis sp. nov. Figs 4 A–B, 5 A–H, 14 Type material. Holotype: Female, China, Shaanxi Province, Zhouzhi County, Houzhenzi Town, under stone or leaf litter, 33 ° 50 ' 50 ʺ N, 107 ° 50 '0ʺ E, 1 May 2010, Z.X. Li, K.Y. Xu & L.Y. Wang leg. (SWUC). Paratypes: 2 females, same data as holotype (SWUC); 1 female, Chongqing Municipality, Jinyun Mountain, 29 ° 50 ʹ 30.5 ʺN, 106 ° 21 ʹ 31.1 ʺE, Guankou, under stone or leaf litter, 5 April 2010, Z.S. Zhang, Z.X. Li, K.Y. Xu & L.Y. Wang leg. (SWUC); 7 females, Jinyun Mountain, Baizigou, 17 April 2010, Z.X. Li leg. (SWUC); 1 female, Baizigou, 24 April 2010, Z.X. Li, K.Y. Xu & L.Y. Wang leg. (SWUC); 2 females, Baizigou, 16 April 2008, Z.S. Zhang leg. (SWUC). Etymology. The specific name is derived from the Latin word ‘ spiralis ’, meaning ‘spiraled’ and refers to the spiraled copulatory ducts of the epigyne; adjective. Diagnosis. Female of the new species is similar to those of L. humilis- group species, L. humilis , L. nielseni , L. bin (Marusik & Logunov, 1991: 92, figs 3.7–9) and L. subhumilis sp. nov. (Figs 9 D–E, 11 G–H), but can be distinguished from the others by the visible and long inner margins of copulatory openings, the relatively long and looped copulatory ducts and the big spermathecae (Figs 4 A–B, 5 G–H). Description. Female total length 1.58–2.29. Holotype (Figs 5 A–E) total length 2.01. Prosoma 0.93 long, 0.75 wide; opisthosoma 1.30 long, 0.99 wide. AME smallest, ALE largest. Eye sizes and interdistances: AME 0.02, ALE 0.08, PME 0.07, PLE 0.08; AME–AME 0.04, AME–ALE 0.03, PME–PME 0.07, PME–PLE 0.07, ALE–PLE 0.03. MOA 0.17 long, front width 0.09, back width 0.17. Clypeus height 0.04. Chelicerae with 4 promarginal and 5 retromarginal teeth. Calamistrum of metatarsus IV relatively short. Leg measurements: I 2.62 (0.78, 0.93, 0.55, 0.36); II 2.12 (0.65, 0.71, 0.44, 0.32); III 1.83 (0.58, 0.58, 0.40, 0.27); IV 2.37 (0.75, 0.79, 0.53, 0.30). Leg formula: 1423. Epigyne (Figs 4 A–B, 5 G–H). Inner margins of copulatory openings visible. Copulatory ducts spiraled around the copulatory openings and spermathecae, forming two loops. Spermathecae ball-like, relatively big, with slightly wider distance than their diameter. Male unknown. Distribution. China (Shaanxi and Chongqing) (Fig. 14). : Published as part of Zhang, Zhi-Sheng, Hu, Dong-Sheng & Zhang, Yao-Guang, 2012, Notes on the spider genus Lathys Simon, 1884 (Araneae: Dictynidae), with description of four new species from China, pp. 1-16 in Zootaxa 3359 on pages 5-7, DOI: 10.5281/zenodo.281616 : {"references": ["Marusik, Y. M. & Logunov D. V. (1991) Spiders of the superfamily Amaurobioidea (Aranei) from Sakhalin and Kurily Islands. Zoologicheskij Zhurnal, 70 (9), 87 - 94."]}