Sinopesa guansheng Lin & Li, 2023

Lin, Yejie, Li, Shuqiang & Pham, Dinh-Sac, 2023, Taxonomic notes on some spider species (Arachnida: Araneae) from China and Vietnam, Zoological Systematics 48 (1), pp. 1-99 : 18-19

Sinopesa guansheng Lin & Li , sp. nov. ( Figs 15–16 )

Etymology. The species is named after Guan Sheng, one of the 108 outlaws in the classical Chinese literature Outlaws of the Marsh; noun in apposition.

Diagnosis. The male of the new species is similar to that of S. maculata by having a similarly shape embolus and metatarsus I with a spine but can be distinguished by the terminus of the psembolus, which is directed prolateral to the tarsus (vs. directed retrolateral to the tarsus in S. maculata ), and metatarsus I is straight (vs. sigmoid in S. maculata ).

Description. Male (holotype). Total length 7.14; carapace 3.34 long, 2.74 wide, opisthosoma 3.80 long, 1.87 wide. Eye sizes and interdistances: AME 0.16, ALE 0.18, PME 0.14, PLE 0.14, AME–AME 0.04, AME–ALE 0.02, PME–PME 0.14, PME–PLE 0.01, AME–PME 0.02, ALE–PLE 0.02. Chelicerae with eight retromarginal teeth. Leg measurements: I 9.12 (2.71, 3.49, 1.71, 1.21), II 8.36 (2.41, 3.10, 1.66, 1.19), III 8.02 (2.04, 2.65, 2.05, 1.28), IV 11.39 (2.92, 3.71, 3.19, 1.57).

Coloration ( Figs 16A–B ). Carapace, chelicerae, endites, labium and sternum brown. Legs brown, with black setae. Opisthosoma oval, dark brown with purple pattern. Four spinnerets, pale yellow.

Palp ( Fig. 15 ). Patella almost as long as cymbium. Tibia almost two times longer than bulb. Tip of cymbium with 27 strong spines. Bulb smooth, pyriform, with a long, slender psembolus, ratio of bulb length to psembolus 2: 3. Terminus of psembolus strongly curved.

Female. Unknown.

Material examined. Holotype ♂ (IZCAS-Ar43848), China: Yunnan, Zhaotong , Zhenxiong County, Huashanxiang (27.4919°N, 104.4759°E, elev. 2071 m), 7 July 2022, Ming Yi leg. Paratype. 1♂ (IZCAS-Ar43849), same data as holotype .

Distribution. Known only from the type locality.

Figures

Figure 15. Sinopesa guansheng Lin&Li,sp. nov., holotype male.A. Left palp, ventral view; B. Same, retrolateral view.Abbreviations: Pb—psembolus. Scale bars=0.3mm.

Figure 16. Sinopesa guansheng Lin & Li, sp. nov., holotype male, habitus. A. Dorsal view; B. Ventral view; C. Leg I, lateral view. Scale bars=1.0mm.