Pimoa pingwuensis new species

Figures 1A–D, 2A–B, 3A–B, 7A–B, 8

Type material. Holotype: Male, China, Sichuan, Pingwu County, Baima Township, 32°42′47″ N, 104°22′35″ E, elev. 1778 m, 15 October 2020, L.Y. Wang, Y. Zhang, J.X. Zhao and J.S. Luo leg. (SWUC-T-PI-03-01) . Paratypes (8 females): 6 females, with same data as for holotype (SWUC-T-PI-03-02~07); 2 females, Baima Township, 32°42′46″ N, 104°22′37″ E, elev. 1801 m, 14 October 2018, Z.S. Zhang, L.Y. Wang, Z. Fan, P. Liu and T. Yuan leg. (SWUC-T-PI-03-08~09).

Etymology. The specific name refers to the type locality.

Diagnosis. The male of Pimoa pingwuensis n. sp. most closely resembles P. trifurcata Xu & Li, 2007 (Xu & Li 2007: 496, figs 49–52), but can be distinguished from all other Pimoa species by the distal-end of the pimoid embolic process paw-shaped with teeth in prolateral view and mouse-shaped in retrolateral view (Figs 1A–C, 2A, B). The female of the new species most closely resembles P. clavata Xu & Li, 2007 (Xu & Li 2007: 487, figs 30–34) in having a similar ventral plate (Fig. 3A) and P. crispa (Fage, 1946) (Hormiga 1994: 63, figs 239–247) in having similar copulatory ducts. However, P. pingwuensis n. sp. can be differentiated by the copulatory opening located postero-ventrally (Fig. 3A), whereas located postero-dorsally in P. clavata; dorsal plate posteriorly with a pointed tip (Fig. 3B), whereas blunt tip in P. clavata; copulatory duct with a single turn located dorso-laterally (Fig. 3A, B), whereas located dorso-mesally in P. clavata; spermathecae touching each other (Fig. 3A, B), whereas separated by a minimal distance in P. crispa .

Description. Male (holotype, Fig. 7A): Total length 8.25. Carapace 3.98 long, 2.73 wide. Abdomen 4.00 long, 2.41 wide. Eye sizes and interdistances: AME 0.18, ALE 0.19, PME 0.19, PLE 0.18; AME–AME 0.11, AME–ALE 0.18, PME–PME 0.16, PME–PLE 0.21. Carapace brownish with black lateral margins; thoracic fovea and radial grooves distinct; sternum brownish. Abdomen black with yellowish transverse chevron bands. Legs brownish with black annulations. Leg measurements: I: 45.93 (12.57, 14.85, 14.51, 4.00); II: 37.52 (10.22, 11.87, 11.99, 3.44); III: 22.91 (6.92, 6.78, 7.13, 2.08); IV: 21.67 (6.88, 6.52, 5.85, 2.43).

Palp (Figs 1A–D, 2A, B): tibia longer than wide, half of cymbial length, with several macrosetae and a dorsal process; paracymbium short, one-third of cymbial length, hook-shaped; pimoid cymbial sclerite large, long and subdistally wide and grooved, slightly shorter than cymbial length, V-shaped in ventral view; cymbial denticulate process broad and short, with more than ten cuspules; median apophysis slender, slightly curved with a pointed tip; conductor distinct; pimoid embolic process longer than embolus, distal end paw-shaped with sharp teeth in prolateral view, mouse-shaped in retrolateral view; embolus beginning at the five o’clock position; embolic tooth absent.

Female (paratype, SWUC-T-PI-03-02, Fig. 7B): Total length 9.58. Carapace 4.50 long, 3.27 wide. Abdomen 5.37 long, 3.40 wide. Eye sizes and interdistances: AME 0.20, ALE 0.19, PME 0.19, PLE 0.21; AME–AME 0.14, AME–ALE 0.23, PME–PME 0.23, PME–PLE 0.28. Carapace brownish with black lateral margins; thoracic fovea and radial grooves distinct; sternum brownish. Abdomen black with yellowish transverse chevron bands and a short vertical band medially. Legs brownish with black annulations. Leg measurements: I: 36.89 (10.08, 12.21, 10.90, 3.70); II: 32.50 (9.01, 10.65, 9.57, 3.27); III: 21.90 (6.51, 6.82, 6.35, 2.22); IV: 28.64 (8.42, 9.57, 8.02, 2.63).

Epigynum (Fig. 3A, B): trapezoidal; ventral plate broad, length subequal to width; dorsal plate tongue-shaped; copulatory openings distinct; copulatory ducts with a single turn and not fused; spermathecae round, touching each other; fertilization ducts anteriorly oriented.

Distribution. Known only from the type locality, Sichuan, China (Fig. 8).