Phrurolithus zhouyun Wang, Chen, Zhou, Zhang & Zhang, 2015, sp. nov.

Phrurolithus zhouyun sp. nov.

Figures 11 A–E, 12A–G

Type material. Holotype ♂, China, Guizhou Province, Fanjing Mountain Nature Reserve: Songtao County, Wuluo Town, Maxi’ao, 28°01.16′N, 108°45.41′E, elev. 1239 m, 5 October 2013, L.Y. Wang, D. Wang and X.K. Jiang leg. Paratypes: 2 ♂ and 2 ♀, with same data as holotype.

Etymology. The specific epithet honours Mr Yun Zhou of the Institute of Biology, Guizhou Academy of Sciences, who was of tremendous assistance in the field; noun in apposition.

Diagnosis. The new species can be distinguished from the other Phrurolithus species [such as P. cangshan Yang, Fu, Zhang & Zhang, 2010 (Yang et al. 2010: 88, figs 1–6), P. hamatus Wang, Zhang & Zhang, 2012 (Wang et al. 2012: 44, figs 8A–E, 9A–I), P. zongxu Wang, Zhang & Zhang, 2012 (Wang et al. 2012: 46, figs 10A–E, 11A– I), etc.] by the strong, S-shaped RTA of the male palp (Figs 11 B–C, 12D–E), the quite small, anteriorly located copulatory openings, and the medium-sized, ball-like bursae of its epigyne (Figs 11 D–E, 12F–G).

Description. Male (Fig. 12 A). Total length 3.24–3.65. Holotype total length 3.58. Prosoma 1.78 long, 1.49 wide; opisthosoma 1.66 long, 1.18 wide. Dorsum of prosoma yellowish brown, with high cephalic area. Eye sizes and interdistances: AME 0.06, ALE 0.10, PME 0.06, PLE 0.10; AME–AME 0.04, AME–ALE 0.02, PME–PME 0.09, PME–PLE 0.08, ALE–PLE 0.07. MOA 0.22 long, front width 0.17, back width 0.21. Clypeus height 0.17. Chelicerae stout, yellowish brown, with three promarginal teeth and seven retromarginal teeth. Gnathocoxae yellow brown, longer than wide. Labium yellow brown, as long as wide. Sternum yellow brown, heart-shaped, with sparse brown hairs. Legs yellow brown, femur with one dorsal spine. Femur I with three prolateral spines; tibia I with six pairs of ventral spines; metatarsus I with four pairs of ventral spines. Femur II with one prolateral spine; tibia II with six pairs of ventral spines; metatarsus II with four pairs of ventral spines. Leg measurements: I 5.41 (1.46, 2.08, 1.25, 0.62); II 4.87 (1.36, 1.69, 1.12, 0.70); III 4.29 (1.19, 1.29, 1.07, 0.74); IV 6.04 (1.59, 1.79, 1.69, 0.97). Leg formula: 4123. Opisthosoma oval. Dorsum yellowish brown, with black brown markings and seven bright chevron-like markings. Venter with some dark brown markings.

Male palp (Figs 11 A–C, 12C–E) with inflated ventral femoral apophysis. RTA strong, long, S-shaped. DTA long, extending apically, with broad base. Tegulum oval and very swollen. Embolus arising prolatero-distally. Tegular process membranous, narrow, close to embolus.

Female total length 2.90–3.64. One paratype (Fig. 12 B) total length 3.64. Prosoma 1.73 long, 1.48 wide; opisthosoma 1.99 long, 1.40 wide. Eye sizes and interdistances: AME 0.07, ALE 0.11, PME 0.06, PLE 0.09; AME–AME 0.05, AME–ALE 0.02, PME–PME 0.09, PME–PLE 0.08, ALE–PLE 0.08. MOA 0.23 long, front width 0.20, back width 0.24. Clypeus height 0.15. Leg measurements: I 5.50 (1.42, 2.07, 1.38, 0.63); II 4.79 (1.30, 1.65, 1.14, 0.70); III 4.34 (1.14, 1.34, 1.07, 0.79); IV 5.81 (1.59, 1.71, 1.56, 0.95). Leg formula: 4123.

Epigyne (Figs 11 D–E, 12F–G) with quite small, widely separated, anteriorly located copulatory openings. Copulatory ducts short, with balloon-like bursae anteriorly. Spermathecae small, located posteriorly, connecting with crescent-shaped fertilization ducts anteriorly.

Distribution. Known only from the type locality, Guizhou, China (Fig. 13).