Pimoa zekogensis, Irfan & Wang & Zhao & Zhang, 2022

Irfan, Muhammad, Wang, Lu-Yu, Zhao, Jingxia & Zhang, Zhi-Sheng, 2022, Three new species of the spider genus Pimoa Chamberlin & Ivie, 1943 (Araneae, Pimoidae) from Qinghai-Tibet Plateau of China, Zootaxa 5092 (3), pp. 318-330 : 325-328

Pimoa zekogensis new species

Figures 5A, B , 6A–D , 7D , 8

Type material. Holotype: male, China, Qinghai, Zekog County, Maixiu Forest Farm, 35°18′32″ N, 101°56′31″ E, elev. 2875 m, 26 August 2019, L.Y. Wang and Z.J. Shi leg. (SWUC-T-PI-05-01).

Etymology. The specific name refers to the type locality.

Diagnosis. Pimoa zekogensis n. sp. resembles P. rongxar Zhang et al. 2020 ( Zhang et al. 2020: 94, figs 10A–C, 11A–B) in having a similar embolus; conductor, median apophysis slender; and the pimoid embolic process distal end abruptly narrow ( Figs 5A, B , 6A–C ). It also resembles P. samyai Zhang et al. 2020 ( Zhang et al., 2020: 97, figs 12A–C, 13A–G) in having a similar paracymbium ( Fig. 6A–C ). However, the new species can be distinguished from all other Pimoa species by the pimoid cymbial sclerite L-shaped, distal end thin with a blunt end and the distalend of the cymbial denticulate process spoon-shaped with roughly eight cuspules ( Figs 5A, B , 6A–C ).

Description. Male (holotype, Fig. 7D ): Total length 8.09. Carapace 3.94 long, 2.72 wide. Abdomen 4.55 long, 2.57 wide. Eye sizes and interdistances: AME 0.17, ALE 0.20, PME 0.18, PLE 0.20; AME–AME 0.13, AME–ALE 0.13, PME–PME 0.16, PME–PLE 0.18. 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: 32.86 (8.92, 10.97, 9.50, 3.47); II: 30.55 (8.40, 10.16, 8.77, 3.22); III: 19.11 (5.56, 6.05, 5.37, 2.13); IV: 25.98 (7.45, 8.51, 7.30, 2.63).

Palp ( Figs 5A, B , 6A–D ): tibia longer than wide, half of cymbial length, with several macrosetae and a dorsal process; paracymbium short, about one-fifth of cymbial length, slightly curved with a pointed tip; pimoid cymbial sclerite short, L-shaped in ventral view; cymbial denticulate process broad and short, with roughly eight cuspules; median apophysis slender, indistinct; conductor distinct; pimoid embolic process longer than embolus, distal margin abruptly narrowing; embolus beginning at the five-thirty o’clock position; embolic tooth absent.

Female. Unknown.

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

Figures

FIGURE 5. Pimoa zekogensis n. sp., male holotype, left palp. A, Prolateral view; B, Retrolateral view.. Scale bars, A, B, 0.5 mm.

FIGURE 6. Pimoa zekogensis n. sp., male holotype, left palp. A, Ventral view; B, Retrolateral view; C, Ventral view; D, Dorsal view. Scale bars, A–D, 0.2 mm.

FIGURE 7. Habitus of Pimoa spp., dorsal view.A, Male holotype of P. pingwuensis n. sp.; B, Female paratype of P. pingwuensis n. sp.; C, Female holotype of P. yajiangensis n. sp.; D, Male holotype of P. zekogensis n. sp. Scale bars, A–D, 2 mm.

FIGURE 8. Distribution of the four new Pimoa species described here.