Spinirta rugosa, Jin & Zhang, 2020

Jin, Chi & Zhang, Feng, 2020, Spinirta gen. nov., a new dark sac spider genus from southern China (Araneae: Corinnidae), Zootaxa 4838 (3), pp. 301-330 : 327

publication ID	https://doi.org/ 10.11646/zootaxa.4838.3.1
publication LSID	lsid:zoobank.org:pub:112D4DC3-723A-4216-A608-3D03B392E973
DOI	https://doi.org/10.5281/zenodo.4404473
persistent identifier	https://treatment.plazi.org/id/F86787F2-FF91-FF8C-25C0-CB0D7C86175A
treatment provided by	Plazi
scientific name	Spinirta rugosa
status	sp. nov.

Treatment

Spinirta rugosa View in CoL sp. nov. (DḦẊĦ)

Figs 1D View FIGURE 1 , 24–25 View FIGURE 24 View FIGURE 25

Type material. Holotype: ♀, CHINA: Sichuan Province, Baoxing County, Fengtongzhai National Nature Reserve, Dadigou (30°28.171′N, 102°52.742′E), 1191 m a.s.l., 2 August 2016, leg. Chi Jin. GoogleMaps Paratypes: 2♀, Sichuan Province, Yaan City, Laoban Mountain (29°58.489′N, 102°59.645′E), 655 m a.s.l., 9 November 2014, leg. Luyu Wang. GoogleMaps

Etymology. The specific name is from the Latin word rugosa , meaning “coarse”, referring to the texture of the part of the copulatory ducts near the spermathecae.

Diagnosis. The female can be distinguished from other congeners by the horseshoe-shaped atrium, and the coarse texture of part of the copulatory ducts near the spermathecae. Male unknown.

Description. Female ( Figs 1D View FIGURE 1 , 24–25 View FIGURE 24 View FIGURE 25 ). Total length 14.59–15.44 (n=3). Holotype: body 15.44 long; carapace 7.11 long, 6.04 wide, width: length = 0.85; abdomen 8.33 long, 5.00 wide. Diameters of eyes: AME 0.45, ALE 0.33, PME 0.41, PLE 0.37. Eye interdistances: AME–AME 0.30, AME–ALE 0.18, ALE–ALE 1.50, PME–PME 0.46, PME–PLE 0.53, PLE–PLE 2.22, ALE–PLE 0.23. OAW 2.60, CRW 4.07, OAW/CRW = 0.64. MOA 1.07 long, front width 1.14, back width 1.21. Clypeus height 0.61, 1.36 times AME diameter. Chelicerae with three promarginal teeth and five retromarginal teeth. Labium 1.35 long, 1.36 wide. Sternum 3.48 long, 3.02 wide. Measurements of legs: leg I 22.41 (6.45 + 2.93 + 5.53 + 4.99 + 2.51), II 21.85 (6.32 + 2.86 + 5.16 + 4.89 + 2.62), III 17.60 (4.91 + 2.25 + 3.73 + 4.36 + 2.35), IV 22.91 (6.17 + 2.51 + 5.61 + 6.43 + 2.19).

Epigyne ( Figs 24E View FIGURE 24 , 25A View FIGURE 25 ): Vulva ( Figs 24F View FIGURE 24 , 25B View FIGURE 25 ): atrium horseshoe-shaped, wider than long, incompletely fused by COs, with protrusion on anterior margin medially. Vulva ( Figs 22F View FIGURE 22 , 23B View FIGURE 23 ): copulatory ducts anteriorly extremely inflated, almost round, partly membranous, posteriorly thin, rugose, running parallel before connecting spermathecae; accessory glands small, spherical; spermathecae small, close to each other.