Spinirta simianshan Wang, Lu & Z.S. Zhang, 2024

Wang, Lu-Yu, Irfan, Muhammad, Lu, Qian-Le, Zhang, Feng & Zhang, Zhi-Sheng, 2024, Six species of the spider genus Spinirta Jin & Zhang, 2020 from southern China (Araneae: Corinnidae), European Journal of Taxonomy 917 (1), pp. 74-93 : 86-89

Spinirta simianshan Wang, Lu & Z.S. Zhang sp. nov.

urn:lsid:zoobank.org:act:8DF6E390-A3E7-4C75-A0D9-8E44440E3290

Figs 6 , 10–11 , 14

Chinese name

四面Ɯ刺Żü

Differential diagnosis

See diagnosis of Spinirta hongyui sp. nov.

Etymology

The specific name derives from the type locality.

Type material

Holotype

CHINA • ♂; Chongqing City, Jiangjin District, Simianshan Natural Reserve , Qinjiagou ; 28°37′6″ N, 106°23′53″ E; alt. 1131 m; 14 Aug. 2022; Z.G. Zhang leg.; SWUC-T-CO-03-01 .

Paratypes (3 ♂♂, 6 ♀♀)

CHINA • 1 ♀; same collection data as for holotype; SWUC-T-CO-03-02 • 2 ♀♀; same collection data as for holotype; 3 Sep. 2022; G.Y. Cai leg.; SWUC-T-CO-03-03 , SWUC-T-CO-03-04 • 1 ♀; Simianshan Natural Reserve , Zhengtiangou; 28°36′46″ N, 106°25′54″ E; alt. 1170 m; 4 Aug. 2022; L.Y. Huang leg.; SWUC-T-CO-03-05 • 2 ♂♂; same collection data as for preceding; 15 Aug. 2022; F. Diao leg.; SWUC-T-CO-03-06 , SWUC-T-CO-03-07 • 1 ♀; Simianshan Natural Reserve , Zhenzhutan; 28°35′50″ N, 106°25′25″ E; alt. 1226 m; 15 Aug. 2022; C.Y. Huang leg.; SWUC-T-CO-03-08 • 1 ♀; Simianshan Natural Reserve , Wenjiaci; 28°35′34″ N, 106°26′34″ E; alt. 1144 m; 15 Aug. 2022; L.Y. Chen leg.; SWUC-T-CO-03-09 • 1 ♂; Simianshan Natural Reserve , Wenjiaci; 28°35′34.27″ N, 106°26′34.93″ E; alt. 1144 m; 24 Aug. 2022; C.Y. Lin leg.; SWUC-T-CO-03-10 .

Description

Male (holotype SWUC-T-CO-03-01, Fig. 11A )

MEASUREMENTS. Total length 18.13. Prosoma 8.88 long, 6.78 wide; opisthosoma 8.87 long, 5.31 wide. Eye sizes and interdistances: AME 0.62, ALE 0.44, PME 0.47, PLE 0.46; AME–AME 0.27, AME– ALE 0.15, PME–PME 0.51, PME–PLE 0.60, ALE–PLE 0.16. MOA 1.42 long, anterior width 1.36, posterior width 1.41. Clypeus height 0.59.

CHELICERAE. With three promarginal and five or six retromarginal teeth.

LEG MEASUREMENTS. I = 27.49 (7.69, 9.57, 6.48, 3.75); II = 26.13 (7.33, 9.14, 6.21, 3.45); III = 31.51 (5.73, 7.26, 5.46, 3.06); IV = 27.38 (7.05, 9.12, 8.32, 2.89). Leg formula: 1423.

PALP ( Figs 10A–B , 11E–G ). Ventral tibial apophysis small with blunt tip; retrolateral tibial apophysis outer edge triangular in ventral view, ventral surface with relatively several short coniform spines; prolateral tibial apophysis triangular. Tegulum round in retrolateral view. Embolus as long as embolar apophysis, with serrated tip; embolar apophysis quadrangular in prolateral view, with broad, rounded tip.

Female (paratype SWUC-T-CO-03-02, Fig. 11B )

MEASUREMENTS. Total length 19.26. Prosoma 9.19 long, 7.09 wide; opisthosoma 9.59 long, 6.02 wide. Eye sizes and interdistances: AME 0.53, ALE 0.45, PME 0.44, PLE, 0.48; AME–AME 0.39, AME– ALE 0.19, PME–PME 0.57, PME–PLE 0.70, ALE–PLE 0.28. MOA 1.39 long, anterior width 1.37, posterior width 1.38. Clypeus height 0.62.

LEG MEASUREMENTS. I = 25.38 (7.17, 9.20, 5.70, 3.31); II = 24.41 (7.04, 8.87, 5.34, 3.16); III = 21.04 (5.83, 7.17, 5.26, 2.78); IV = 26.80 (6.99, 8.95, 7.99, 2.87). Leg formula: 4123.

EPIGYNE ( Figs 10C , 11C ). Atrium large, oval, divided with septum; copulatory openings inside the atrium located posteriorly.

VULVA ( Figs 10D , 11D ). Copulatory ducts longer than wide; accessory glands absent; spermathecae round; fertilization duct large, originating at anterior margin of spermathecae.

Distribution

Known only from the type locality, Simianshan Natural Reserve, Chongqing, China ( Fig. 14 ).

Figures

Fig. 6. Spinirta liuae Wang, Lu & Z.S. Zhang sp. nov. A–B. Holotype, ♂ (SWUC-T-CO-02-01). C–D. Paratype, ♀ (SWUC-T-CO-02-02). A. Left male palp, ventral view. B. Same, retrolateral view. C. Epigyne, ventral view.D. Vulva, dorsal view.Abbreviations: AG = accessory glands; CD = copulatory ducts; CO = copulatory openings; E = embolus; EA = embolar apophysis; FD = fertilization ducts; RTA = retrolateral tibial apophysis; S = spermathecae; VTA = ventral tibial apophysis.

Fig. 10. Spinirta simianshan Wang, Lu & Z.S. Zhang sp. nov. A–B. Holotype, ♀ (SWUC-T-CO-03-01). C–D. Paratype, ♀ (SWUC-T-CO-03-02). A. Left male palp, ventral view. B. Same, retrolateral view. C. Epigyne, ventral view.D. Vulva, dorsal view.Abbreviations: CD = copulatory ducts; CO = copulatory openings; E = embolus; EA = embolar apophysis; FD = fertilization ducts; RTA = retrolateral tibial apophysis; S = spermathecae; VTA = ventral tibial apophysis.

Fig. 11. Spinirta simianshanWang, Lu & Z.S. Zhang sp. nov.A, E–G. Holotype, ♂ (SWUC-T-CO-03-01). B–D. Paratype, ♀ (SWUC-T-CO-03-02). A. Male habitus, dorsal view. B. Female habitus, dorsal view. C. Epigyne, ventral view. D. Vulva, dorsal view. E. Left male palp, prolateral view. F. Same, ventral view. G. Same, retrolateral view.

Fig. 14. Distribution records of six species of Spinirta Jin & Zhang, 2020 in China.