Eight new species of the spider genus Pimoa (Araneae, Pimoidae) from Tibet, China Author Zhang, Xiaoqing Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Author Lan, Tianqi College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China Author Nie, Lei College of Life Science, Hebei University, Baoding, Hebei 071002, China Author Li, Shuqiang Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China https://orcid.org/0000-0002-3290-5416 lisq@ioz.ac.cn text ZooKeys 2020 940 79 104 http://dx.doi.org/10.3897/zookeys.940.49793 journal article http://dx.doi.org/10.3897/zookeys.940.49793 1313-2970-940-79 A9CF02328E42454E865082A9D74346D6 53CA7C8DCBAA54EB9D8718F6FCDCE0BE Pimoa rongxar Zhang & Li, sp. nov. Figures 10 , 11 , 16 Type material. Holotype : ♂ (IZCAS-Ar40331), China, Tibet, Shigatse, Dinggye County, Rongxar Town, Woods by the river, 28.07°N , 86.37°E , elevation ca. 3520 m, 29.VII.2018, X. Zhang and J. Liu leg. Paratype : 1♀ (IZCAS-Ar40332), same data as holotype. Etymology. The specific name is a noun in apposition taken from the type locality. Diagnosis. The male of Pimoa rongxar sp. nov. resembles P. reniformis (see Xu and Li 2007 : 493, figs 36-41) and P. thaleri Trotta, 2009 (see Trotta 2009 : 1404, fig. 1) but can be distinguished by the large, long and subdistally wide pimoid cymbial sclerite (Fig. 10B , vs. small and narrow in P. reniformis ; vs. short and medially wide in P. thaleri ); distinguished from P. reniformis by the long palpal tibia, ca. 1/2 of the cymbial length (Fig. 10A-C , vs. palpal tibia short, ca. 1/3 of the cymbial length); distinguished from P. thaleri by the pimoid embolic process which is longer than the embolus (Fig. 10B , vs. a pimoid embolic process that is almost the same length as the embolus). The female of P. rongxar resembles P. indiscreta Hormiga, 1994 (see Hormiga 1994a : 66, figs 248-255) but can be distinguished by a pair of nearly round spermathecae (Fig. 11A , vs. nearly oval) and by the laterally oriented pair of fertilization ducts (Fig. 11A-D , vs. medially oriented fertilization ducts). Figure 10. Left palp of Pimoa rongxar sp. nov., holotype A prolateral view B ventral view C retrolateral view. Abbreviations: AS = alveolar sclerite; C = conductor; CDP = cymbial denticulate process; E = embolus; MA = median apophysis; P = paracymbium; PCS = pimoid cymbial sclerite; PEP = pimoid embolic process; T = tegulum. Scale bar: equal for A-C . Description. Male ( holotype ): Total length 3.97. Carapace 2.50 long, 1.92 wide. Abdomen 1.47 long, 1.86 wide. Eye sizes and interdistances: AME 0.12, ALE 0.14, PME 0.16, PLE 0.14; AME-AME 0.14, AME-ALE 0.15, PME-PME 0.11, PME-PLE 0.11. Leg measurements: I: 19.23 (5.26, 6.22, 5.19, 2.56); II: 16.79 (4.55, 5.38, 4.62, 2.24); III: 11.48 (3.27, 3.46, 3.21, 1.54); IV: 14.16 (3.97, 4.55, 4.04, 1.60). Habitus as in Fig. 11E . Carapace brownish with black lateral margins; thoracic fovea and radial grooves distinct; sternum brownish. Abdomen dark gray. Legs brownish with distinct black annulations on all legs. Palp (Fig. 10A-C ): patella short, ca. 1/2 of tibial length, with a single retrolateral macroseta; tibia long, ca. 1/2 of cymbial length, with several macrosetae and a dorsal process; paracymbium short, ca. 1/3 of cymbial length; pimoid cymbial sclerite large, long and subdistally wide, slightly shorter than cymbial length; cymbial denticulate process short, distally narrow, with more than ten cuspules; median apophysis slender; conductor distinct; pimoid embolic process longer than embolus, abruptly narrowing; embolus beginning at the 5:30 o'clock position; embolic tooth absent. Female ( paratype ): Total length 7.63. Carapace 3.78 long, 2.95 wide. Abdomen 3.85 long, 2.63 wide. Eye sizes and interdistances: AME 0.17, ALE 0.20, PME 0.18, PLE 0.17; AME-AME 0.13, AME-ALE 0.17, PME-PME 0.18, PME-PLE 0.21. Leg measurements: I: 24.29 (6.67, 8.14, 6.60, 2.88); II: 22.50 (6.35, 7.44, 6.15, 2.56); III: 17.38 (5.19, 5.58, 4.62, 1.99); IV: 20.77 (6.15, 6.86, 5.58, 2.18). Habitus as in Fig. 11F, G . Carapace yellowish with black lateral margins; thoracic fovea and radial grooves distinct; sternum brownish. Abdomen yellowish with black marks. Legs yellowish with distinct black annulations on all legs. Epigyne (Fig. 11A-D ): triangular; ventral plate broad, length subequal to width; dorsal plate narrow, longer than wide; copulatory openings distinct; spermathecae nearly round, separated by ca. 1/4 width of spermatheca; fertilization ducts yellowish, laterally oriented. Figure 11. Epigyne and habitus of Pimoa rongxar sp. nov., female paratype and male holotype 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. Abbreviations: CO = copulatory opening; DP = dorsal plate of the epigyne; FD = fertilization duct; S = spermatheca; VP = ventral plate of epigyne. Scale bars: equal for F and G . Distribution. Known only from the type locality, Tibet, China (Fig. 16 ).