Pimoa nainital Zhang & Li, 2021

Lin, Yejie, Marusik, Yuri M., Gao, Caixia, Xu, Hao, Zhang, Xiaoqing, Wang, Ziyi, Zhu, Wenhui & Li, Shuqiang, 2021, Twenty-three new spider species (Arachnida: Araneae) from Asia, Zoological Systematics 46 (2), pp. 91-152 : 120-122

Pimoa nainital Zhang & Li , sp. nov. ( Figs 26A–C , 27A–G )

Diagnosis. The male of P. nainital Zhang & Li , sp. nov. resembles P. mainling Zhang & Li, 2020 (see Zhang et al., 2020: 89, fig. 6) and P. thaleri Trotta, 2009 (see Trotta, 2009: 1404, figs 1–2) but can be distinguished from P. mainling by the narrower cymbium (vs. significantly wide in P. mainling ), and from P. thaleri by the small PCS (vs. large in P. thaleri ) and by having the PEP longer than the embolus (vs. subequal to embolus in P. thaleri ). The females of P. nainital Zhang & Li , sp. nov. resemble P. crispa (Fage, 1946) (see Hormiga, 1994: 63, figs 239–247) and P. sinuosa Hormiga, 1994 (see Hormiga, 1994: 67, figs 266–284) but can be distinguished by the S touching each other (vs. separated by a short distance in P. crispa and separated by ca. 1/3 width in P. sinuosa ).

Description. Male (holotype, IZCAS-Ar42428, Figs 26A–C , 27E ). Total length 5.37. Carapace 2.28 long, 2.06 wide. Abdomen 3.09 long, 2.03 wide. Eye sizes and interdistances: AME 0.17, ALE 0.16, PME 0.17, PLE 0.17; AME–AME 0.21, AME–ALE 0.13, PME–PME 0.14, PME–PLE 0.18. Leg measurements: Leg I 23.32 (6.22 + 7.72 + 6.66 + 2.72); leg II 18.78 (5.13 + 6.22 + 5.49 + 1.94); leg III 11.76 (3.09 + 3.82 + 3.41 + 1.44); leg IV 16.47 (4.56 + 5.46 + 4.69 + 1.76). Promargin of chelicerae with 3 teeth, retromargin with 3 teeth. Habitus as in Fig. 27E . Carapace brownish with greyish lateral margins; thoracic fovea and radial grooves distinct; sternum yellow. Abdomen black, with yellow transverse chevrons, nearly oval. Legs reddish, with black annulations, especially distinct on legs III and IV.

Palp ( Figs 26A–C ) patella short, ca. 1/2 of tibial length, with 1 macroseta; tibia short, ca. 2/3 of cymbial length, with several macrosetae and a dorsal process; P short, about 1/3 of cymbial length, hook shaped; PCS L˗shaped, ca. 1/3 of cymbial length; CDP short, with more than 7 cuspules; MA slender; C distinct; PEP membranous, distally pointed, longer than E; E beginning at the 6:30 o’clock position; embolic tooth absent.

Female (paratype, IZCAS-Ar42429, Figs 27A–D, F–G ). Total length 5.72. Carapace 2.94 long, 2.31 wide. Abdomen 2.78 long, 2.69 wide. Eye sizes and interdistances: AME 0.17, ALE 0.18, PME 0.16, PLE 0.18; AME–AME 0.16, AME– ALE 0.13, PME–PME 0.16, PME–PLE 0.19. Leg measurements: Leg I 20.33 (5.76 + 6.82 + 5.28+ 2.47); leg II 16.94 (4.97 + 5.62 +4.44+ 1.91); leg III 11.66 (3.47 +3.65 +3.13+ 1.41); leg IV 14.87 (4.47 + 5.15+3.53 +1.72). Cheliceral teeth as in male. Habitus as in Figs 27F–G . Carapace yellowish with black lateral margins; thoracic fovea and radial grooves distinct; sternum yellow. Abdomen black with yellowish transverse chevrons. Legs brownish, with black annulations.

Epigyne ( Figs 27A–D ) subtriangular; VP broad, width ca. 1/2 of length; DP tongue shaped; COs distinct; S nearly oval, touching each other; FDs yellow, laterally oriented.

Material examined. Holotype ♂, India, Uttaranchal , Nainital, Nanda Devi Bird Conservation Reserve (29.4200°N, 79.4500°E; elev. ca. 2290 m), 18 September 1999, leg. Klaus Weisshart (IZCAS-Ar42428) . Paratypes. 2♀ (IZCAS-Ar42429 –Ar42430), same data as holotype .

Distribution. Known only from the type locality.

Etymology. The specific name is a noun in apposition taken from the type locality.

Figures

Figure 26. Pimoa nainital Zhang & Li, sp. nov., holotype male, left palp. A. Prolateral view; B. Ventral view; C. Retrolateral view. Scale bars=0.3mm.

Figure 27. Epigyne and habitus of Pimoa nainital Zhang & Li, sp. nov., paratype female and holotype male.A. Epigyne, ventral view; B. Schematic course of internal duct system, ventral view; C. Vulva, dorsal view; D. Schematic course of internal duct system, dorsal view; E. Male habitus, dorsal view; F. Female habitus, dorsal view; G. Female habitus, ventral view. Scale bars: A–D=0.1 mm; E–G =1.0mm.