Pimoa duiba Zhang & Li, sp. nov.

Zhang, Xiaoqing, Lan, Tianqi, Nie, Lei & Li, Shuqiang, 2020, Eight new species of the spider genus Pimoa (Araneae, Pimoidae) from Tibet, China, ZooKeys 940, pp. 79-104 : 79

publication ID

https://dx.doi.org/10.3897/zookeys.940.49793

publication LSID

lsid:zoobank.org:pub:A9CF0232-8E42-454E-8650-82A9D74346D6

persistent identifier

https://treatment.plazi.org/id/95D5916B-50C2-5B67-975C-AE6E71C9F25D

treatment provided by

ZooKeys by Pensoft

scientific name

Pimoa duiba Zhang & Li, sp. nov.
status

 

Pimoa duiba Zhang & Li, sp. nov. View in CoL Figures 3 View Figure 3 , 4 View Figure 4 , 16 View Figure 16

Type material.

Holotype: ♂ (IZCAS-Ar40316), China, Tibet, Lhoka, Duopozhang Town, Duiba Village, 29.37°N, 91.70°E, elevation ca. 4095 m, 14.VIII.2019, X. Zhang, Z. Bai and J. Liu leg. Paratypes: 1♀ (IZCAS-Ar40317), same data as holotype; 1♀ (IZCAS-Ar40318), Lhoka, Aza Town, Beside the stream behind Zonggongbu Cave, 29.37°N, 91.32°E, elevation ca. 4537 m, 29.VIII.2018, X. Zhang and J. Liu leg.

Etymology.

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

Diagnosis.

The male of Pimoa duiba sp. nov. resembles P. samyai sp. nov. (Fig. 12A-C View Figure 12 ) and P. trifurcata (see Xu and Li 2007: 496, figs 48-54) but can be distinguished by the short and distally blunt cymbial denticulate process (Fig. 3B View Figure 3 , vs. relatively long and distally narrow in P. samyai and P. trifurcata ); distinguished from P. samyai by the nearly V-shaped pimoid cymbial sclerite (Fig. 3B View Figure 3 , vs. nearly L-shaped); distinguished from P. trifurcata by the pimoid embolic process without a trifurcate apex (Fig. 3A-C View Figure 3 , vs. with a trifurcate apex). The female of P. duiba also resembles P. samyai sp. nov. (Fig. 13A-D View Figure 13 ) and P. trifurcata (see Xu and Li 2007: 496, figs 55-61) but can be distinguished by the short distance between the spermathecae (Fig. 4A View Figure 4 , vs. separated by ca. 1/2 the width of a spermatheca in P. samyai and P. trifurcata ); distinguished from P. samyai by having a spermatheca that is wider than long (Fig. 4A View Figure 4 , vs. longer than wide); distinguished from P. trifurcata by the medially narrow dorsal plate (Fig. 4C View Figure 4 , vs. medially relatively wide).

Description.

Male (holotype): Total length 5.26. Carapace 2.18 long, 1.86 wide. Abdomen 3.08 long, 1.73 wide. Eye sizes and interdistances: AME 0.12, ALE 0.13, PME 0.12, PLE 0.12; AME-AME 0.07, AME-ALE 0.11, PME-PME 0.10, PME-PLE 0.14. Leg measurements: I: 23.84 (6.60, 7.95, 6.73, 2.56); II: 21.79 (5.90, 7.24, 6.34, 2.31); III: 16.16 (4.62, 5.45, 4.49, 1.60); IV: 19.41 (5.51, 6.15, 5.83, 1.92). Promargin of chelicerae with three teeth, retromargin with two teeth. Habitus as in Fig. 4E View Figure 4 . Carapace yellowish with slightly darker lateral margins; thoracic fovea and radial grooves distinct; sternum brownish. Abdomen black with yellowish transverse chevron bands. Legs brownish without black annulations. Palp (Fig. 3A-C View Figure 3 ): 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, hook-shaped; pimoid cymbial sclerite nearly V-shaped, ca. 1/3 of cymbial length; cymbial denticulate process short and distally blunt, with more than five cuspules; median apophysis slender; conductor distinct; pimoid embolic process distally pointed, longer than embolus; embolus beginning at the 7:00 o’clock position, with short slender spine proximally; embolic tooth absent.

Female (paratype): Total length 6.85. Carapace 2.56 long, 2.11 wide. Abdomen 4.29 long, 3.27 wide. Eye sizes and interdistances: AME 0.12, ALE 0.16, PME 0.10, PLE 0.15; AME-AME 0.09, AME-ALE 0.15, PME-PME 0.09, PME-PLE 0.17. Leg measurements: I: 21.47 (6.15, 6.73, 6.03, 2.56); II: 19.55 (5.38, 6.67, 5.38, 2.12); III: 15.20 (4.62, 4.81, 4.10, 1.67); IV: 19.23 (5.51, 6.22, 5.45, 2.05). Promargin of chelicerae with three teeth, retromargin with two teeth. Habitus as in Fig. 4F, G View Figure 4 . Carapace brownish with slightly darker lateral margins; thoracic fovea and radial grooves indistinct; sternum brownish. Abdomen black with yellowish transverse chevron bands. Legs brownish without black annulations. Epigyne (Fig. 4A-D View Figure 4 ): triangular; ventral plate broad, length subequal to width; dorsal plate longer than wide, nearly tongue-shaped; copulatory openings distinct; spermathecae nearly round with short distance between them; fertilization ducts yellowish, anteriorly oriented.

Distribution.

Known only from the type locality, Tibet, China (Fig. 16 View Figure 16 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pimoidae

Genus

Pimoa