Acantholycosa zang sp. nov.

Figs 7, 8, 9, 13

Acantholycosa baltoroi: Buchar 1976: 202, figs 1–3 (♂ ♀); Chen et al. 1998: 72, figs 13–19 (♂ ♀); Song et al. 1999: 310, figs 186 A, M (♂ ♀); Marusik et al. 2004: 112, fig. 60 (♂); Marusik and Omelko 2017: 597, fig. 10 (♂) (misidentified).

Type material.

• Holotype ♂ (SWUC -T-LY-25-01): China, Xizang, Nyingchi City, Zayü Co., 64 th km of Provincial Highway S 201, 29°19'41"N, 97°8'8"E, elev. 3903 m, 25. 06. 2018, L. Y. Wang et al. leg. • Paratypes: 3 ♂ 1 ♀ (SWUC -T-LY-25-02 ~ 05), same data as holotype • 1 ♂, Qamdo City, Riwoqê Co., Riwoqê Town, 31°23'26"N, 96°32'51"E, elev. 3933 m, 22. 05. 2017, T. Lu and Q. Y. Wang leg. • 1 ♂ (SWUC -T-LY-25-06), Qamdo City, Markham Co., Quzika Township, Xiaochangdu Vill., 29°11'53"N, 98°38'42"E, elev. 3496 m, 11. 05. 2017, T. Lu and Z. S. Wu leg. • 2 ♂ (SWUC -T-LY-25-07 ~ 08), Nyingchi City, Zayü Co., Guyu Township, 29°5'32"N, 97°17'13"E, elev. 3196 m, valley scrub, 25. 05. 2019, L. Y. Wang et al. leg. • 2 ♂ (SWUC -T-LY-25-09 ~ 10), Sichuan Prov., Garze Pref., Dege Co., Que’er Mt., Wudaoban, 31°56'33"N, 98°55'1"E, elev. 4707 m, 18. 06. 2016, T. Lu et al. leg. • 7 ♂ 3 ♀ (SWUC -T-LY-25-11 ~ 20), Garze Pref., Daocheng Co., Haizi Mt., Yunsecuo River bank, 29°27'4"N, 100°11'30"E, elev. 4615 m, 12. 06. 2016, T. Lu et al. leg.

Etymology.

The specific name comes from the Chinese word “ zang ”, the name of one of the Chinese ethnic minorities that mainly live in Xizang and Sichuan provinces of China; noun in apposition.

Diagnosis.

This new species can be separated from other Acantholycosa species by the lanceolate end and retrolateral serrate margin of the terminal apophysis ventrally (Fig. 8 D, arrow). The new species is most similar to A. zhangi sp. nov. in having a similar conformation of the copulatory organs (Figs 7 A – E, 8 B – F, 9 B, C cf. Figs 10 A – E, 11 B – F, 12 B, C), but it can be differentiated by the triangular paleal apophysis with a pointed tip in ventral view (Figs 7 A, C, 8 B, D, F) (vs. rectangular with a wavy tip; Figs 10 A, C, 11 B, D, F); the median apophysis axe shaped without spine (Figs 7 A, 8 B, D) (vs. rectangular with hook-shaped basal arm and triangular spine; Figs 10 A, 11 B, D); embolus with subparallel margins abruptly tapering at tip (Figs 7 A, C, 8 B, D, F) (vs. tapering from base to tip, slightly curved towards tip; Figs 10 A, C, 11 B, D, F). Females can be distinguished by having an epigyne with a pair of distinct hoods (Figs 7 D, 9 B) (vs. a pair of less pronounced hoods; Figs 10 D, 12 B); width of hoods equal to septal posterior width (Figs 7 D, 9 B) (vs. one-third septal posterior width; Figs 10 D, 12 B); septal base hexagonal (Figs 7 D, 9 B) (vs. trapezoidal; Figs 10 D, 12 B); spermathecal heads with wart-like projections (Figs 7 E, 9 C) (vs. smooth; Figs 10 E, 12 C).

Description.

Male holotype (Fig. 8 A) total length 9.23. Carapace 4.87 long, 3.91 wide; opisthosoma 4.49 long, 2.99 wide. Carapace dark brown. Eye sizes and interdistances: AME 0.15, ALE 0.15, PME 0.48, PLE 0.42; AME – AME 0.17, AME – ALE 0.10, PME – PME 0.52, PME – PLE 0.55. Clypeus 0.3 high. Leg measurements: I 14.82 (3.83, 5.06, 3.88, 2.05); II 14.71 (3.99, 4.84, 3.85, 2.03); III 14.46 (3.62, 4.16, 4.56, 2.12); IV 19.73 (4.67, 5.69, 6.59, 2.78). Femur I with 5 dorsal and 3 prolateral spines; tibia I with 2 prolateral, 2 retrolateral and 8 ventral spines; metatarsus I with 5 prolateral, 5 retrolateral and 3 ventral spines.

Palp (Figs 7 A – C, 8 B – F). Cymbium droplet-shaped, with two claws and black setae. Paleal apophysis triangular with acuminate tip. Terminal apophysis with lanceolate end and retrolateral serrate margin in ventral view. Median apophysis with concave fold dorsally and serrated margins, no apical arm. Embolus 5.5 times as long as wide, uniform, tapering abruptly at tip and without basal spine.

Female paratype (SWUC -T-LY-25-02, Fig. 9 A) total length 11.19. Carapace 5.18 long, 4.12 wide; opisthosoma 6.45 long, 4.35 wide. Same as in male. Eye sizes and interdistances: AME 0.17, ALE 0.17, PME 0.51, PLE 0.41; AME – AME 0.24, AME – ALE 0.13, PME – PME 0.58, PME – PLE 0.64. Clypeus height 0.29. Leg measurements: I 15.33 (4.16, 5.41, 3.58, 2.18); II 15.02 (4.05, 5.12, 3.67, 2.18); III 16.40 (4.02, 5.13, 4.67, 2.58); IV 20.47 (4.98, 5.99, 6.73, 2.77). Femur I with 5 dorsal and 2 prolateral spines; tibia I with 2 prolateral, 2 retrolateral and 8 ventral spines; metatarsus I with 4 prolateral, 4 retrolateral and 3 ventral spines.

Epigyne (Figs 7 D, E, 9 B, C). Hoods distinct, clearly separated from each other. Atrium as long as wide. Septum with distinct stem and hexagonal base equal in length and width. Width of hoods equal to septal posterior width. Copulatory openings located at anterolateral margin of septal base. Spermathecae heads oval with small wart-like projections. Spermathecal stalks slightly curved. Fertilization ducts slender, width between two ducts longer than length of duct.

Distribution.

China (Xizang, Sichuan), Nepal.

Comment.

This species belongs to the A. solituda - group.

Remark.

Although the specimens of A. baltoroi from Nepal were not examined, it is clear from the descriptions in Buchar (1976), Marusik et al (2004), Marusik and Omelko (2017) that A. baltoroi from Nepal is identical to A. zang sp. nov.