Spinirta yintiaoling 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 : 89-91

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

urn:lsid:zoobank.org:act:49356C27-E5FC-4D24-BC88-1DB415A30FCC

Figs 12–14

Chinese name

NJ条»刺Żü

Differential diagnosis

Male of Spinirta yintiaoling Wang, Lu & Z.S. Zhang sp. nov. resembles S. hongyui sp. nov. in having the similar quadrangular embolar apophysis ( Figs 12 , 13B–D vs Figs 4A–B , 5F–G ) but can be distinguished by the ventral tibial apophysis tip rounded in S. yintiaoling ( Figs 12 , 13B–D ), whereas somewhat triangular in S. hongyui ( Figs 4A–B , 5E–G ); retolateral tibial apophysis tip rounded in ventral view in S. yintiaoling ( Figs 12 , 13C–D ), whereas wavy in S. hongyui ( Figs 4A–B , 5F–G ).

Etymology

The specific name derives from the type locality.

Type material

Holotype

CHINA • ♂; Chongqing City, China, Chongqing City, Wuxi County , Shuangyang Township , Matang Village , Yintiaoling Natural Reserve ; 31°28′21.40″ N, 109°50′47.75″ E; alt. 1393 m; 10 Sep. 2022; Y.B. Zhu leg.; SWUC-T-CO-04-01 .

Paratypes

CHINA • 5 ♂♂; same collection data as for holotype; SWUC-T-CO-04-02 to 06 .

Description

Male (holotype SWUC-T-CO-04-01, Fig. 13A )

MEASUREMENTS. Total length 15.04. Prosoma 7.78 long, 5.92 wide; opisthosoma 7.18 long, 4.95 wide. Eye sizes and interdistances: AME 0.49, ALE 0.41, PME 0.38, PLE 0.41; AME–AME 0.28, AME– ALE 0.15, PME–PME 0.45, PME–PLE 0.47, ALE–PLE 0.18. MOA 1.16 long, anterior width 1.11, posterior width 1.20. Clypeus height 0.52.

CHELICERAE. With three promarginal and five retromarginal teeth.

LEG MEASUREMENTS. I = 23.36 (6.23, 8.44, 5.46, 3.23); II = 22.31 (6.15, 7.74, 5.34, 3.08); III = 18.88 (5.22, 6.24, 4.85, 2.57); IV = 24.12 (6.04, 8.06, 7.05, 2.97). Leg formula: 4123.

PALP ( Figs 12 , 13B–D ). Tibial ventral hump small with blunt tip; retrolateral tibial apophysis outer edge rounded in ventral view, ventral surface with relatively several short coniform spines; prolateral tibial apophysis triangular. Tegulum retrolateral round. Subtegulum longer than wide. Embolus longer than embolar apophysis, with blunt tip; embolar apophysis quadrangular in ventral view, with broad distal end.

Female

Unknown.

Distribution

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

Figures

Fig. 12. Spinirta yintiaoling Wang, Lu & Z.S. Zhang sp. nov., holotype, ♂ (SWUC-T-CO-04-01). A. Left male palp, ventral view. B. Same, retrolateral view. Abbreviations: E = embolus; EA = embolar apophysis; RTA = retrolateral tibial apophysis; VTA = ventral tibial apophysis.

Fig. 13. Spinirta yintiaoling Wang, Lu & Z.S. Zhang sp. nov., holotype, ♂ (SWUC-T-CO-04-01). A. Male habitus, dorsal view. B. Left male palp, prolateral view. C. Same, ventral view. D. Same, retrolateral view.

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

Fig. 4. Spinirta hongyui Wang, Lu & Z.S. Zhang sp. nov. A–B. Holotype, ♂ (SWUC-T-CO-01-01). C–D. Paratype, ♀ (SWUC-T-CO-01-02). 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. 5. Spinirta hongyui Wang, Lu & Z.S. Zhang sp. nov. A, E–G. Holotype, ♂ (SWUC-T-CO-01-01). B–D. Paratype, ♀ (SWUC-T-CO-01-02). 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.