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

urn:lsid:zoobank.org:act: 4DAB5456-FB18-47D7-8B06-02E0566B4710

Figs 1C–D, 6–7, 14

Chinese name

刘氏刺Żü

Differential diagnosis

Male of Spinirta liuae Wang, Lu & Z.S. Zhang sp. nov. resembles S. hongyui sp. nov. in having the similar embolus (Figs 6A–B, 7E–G vs Figs 4A–B, 5E–G) but can be distinguished by the embolus shorter than embolar apophysis in S. liuae (Figs 6A–B, 7F–G), vs as long as embolar apophysis in S. hongyui (Figs 4A–B, 5F–G); embolar apophysis thumb-shaped in S. liuae (Figs 6A–B, 7F–G), vs quadrangular in S. hongyui (Figs 4A–B, 5F–G); ventral tibial apophysis large, with rounded tip in ventral view in S. liuae (Figs 6A, 7F), vs triangular in S. hongyui (Figs 4A, 5F); retrolateral tibial apophysis ventrally hookshaped projection in S. liuae (Figs 6B, 7G), vs ventrally absent any projection in S. hongyui (Figs 4B, 5G). Female can be distinguished from S. hongyui by the spermathecae present mid dorsally, separated by a distance two times longer than their diameter in S. liuae (Figs 6D, 7D), vs present at posterior end, separated by a distance almost equal to their diameter in S. hongyui (Figs 4D, 5D); accessory glands quite visible in S. liuae (Figs 6D, 7D), vs slightly visible in S. hongyui (Figs 4D, 5D).

Etymology

The specific name comes from the family name of the collector Ms Jia Liu; noun.

Type material

Holotype

CHINA • ♂; Guangdong Province, Shenzhen City, Wutong Mountain, Taishanjian; 22°34′51″ N, 114°11′50″ E; alt. 341 m; 16 Jan. 2021; J. Liu and Q.L. Lu leg.; SWUC-T-CO-02-01.

Paratype

CHINA • 1 ♀; same collection data as for holotype; SWUC-T-CO-02-02.

Description

Male (holotype SWUC-T-CO-02-01, Figs 1C, 7A)

MEASUREMENTS. Total length 13.12. Prosoma 6.82 long, 5.34 wide; opisthosoma 6.16 long, 3.82 wide. Eye sizes and interdistances: AME 0.45, ALE 0.34, PME 0.36, PLE 0.34; AME–AME 0.23, AME– ALE 0.15, PME–PME 0.36, PME–PLE 0.45, ALE–PLE 0.14. MOA 1.12 long, anterior width 1.06, posterior width 1.13. Clypeus height 0.42.

CHELICERAE. With three promarginal and five retromarginal teeth.

LEG MEASUREMENTS. I = 20.45 (5.54, 7.37, 4.74, 2.80); II = 19.33 (5.36, 6.69, 4.57, 2.71); III = 16.12 (4.53, 5.29, 3.98, 2.32); IV = 21.86 (5.78, 7.09, 6.36, 2.63). Leg formula: 4123.

PALP (Figs 6A–B, 7E–G). Ventral tibial apophysis large, quadrangular in ventral view, with broad distal end; retrolateral tibial apophysis proximally strongly curved, hook shaped in retrolateral view with blunt tip, rest of it oval, ventrally grooved with relatively sparse coniform spines; prolateral tibial apophysis triangular. Tegulum round in retrolateral view. Subtegulum with an inclined groove on prolateral surface. Embolus shorter than embolar apophysis with serrated tip; embolar apophysis longer than wide with rounded tip.

Female (paratype SWUC-T-CO-02-02, Figs 1D, 7B)

MEASUREMENTS. Total length 13.72. Prosoma 6.50 long, 5.15 wide; opisthosoma 7.04 long, 5.16 wide. Eye sizes and interdistances: AME 0.43, ALE 0.34, PME 0.36, PLE, 0.37; AME–AME 0.21, AME– ALE 0.13, PME–PME 0.36, PME–PLE 0.42, ALE–PLE 0.17. MOA 1.13 long, anterior width 0.99, posterior width 1.03. Clypeus height 0.31.

LEG MEASUREMENTS. I = 18.49 (4.80, 6.89, 4.39, 2.41); II = 18.29 (5.17, 6.42, 4.23, 2.47); III = 14.73 (4.17, 4.81, 3.67, 2.08); IV = 20.66 (5.66, 6.80, 5.91, 2.29). Leg formula: 4123.

EPIGYNE (Figs 6C, 7C). Anterior rim of atrium semicircular, copulatory openings present at the center of atrium.

VULVA (Figs 6D, 7D). Copulatory ducts coiled helically; accessory glands large, tip slightly curved; spermathecae round, located mid dorsally, separated by a distance more than two times of their diameter; fertilization duct large, originating at the anterior margin of spermathecae.

Distribution

Known only from the type locality, Shenzhen, China (Fig. 14).