Pinelema laensis Zhao & Li

Zhao, Huifeng, Dinh-Sac, Pham, Song, Yang, Do, Thi-Duyen & Li, Shuqiang, 2018, Seven new species of Pinelema from Vietnam (Araneae, Telemidae), ZooKeys 734, pp. 13-42 : 17

Pinelema laensis Zhao & Li sp. n. Figs 7, 8, 9, 22

Type material.

Holotype ♂: Vietnam: Phu Tho Province: Xuan Son National Park: La Cave, N21°08.27', E104°56.35', 424 m, 27.X.2012, H.F. Zhao & Z.G. Chen leg. Paratypes 1♂ and 4♀, same data as holotype.

Etymology.

The specific name refers to the type locality; adjective.

Diagnosis.

This new species is similar to P. xiezi sp. n. by having a trapezoidal embolus but can be distinguished by the marginally sclerotized, hollow embolus (Figs 7B, 8 C–D). Pinelema laensis sp. n. is also similar to P. huobaensis and P. yaosaensis but can be distinguished from them by having distinct eyes and a trapezoidal embolus; P. huobaensis and P. yaosaensis have no eyes and their emboli are shaped like equilateral triangles. The new species can be distinguished from other congeners by the short embolus and axe-shaped endogyne (Fig. 9C).

Description.

Male (holotype). Total length 1.20. Carapace 0.51 long, 0.47 wide. Abdomen 0.67 long, 0.55 wide. Carapace brown with a black spot. Six eyes encircled by black rings, clypeus 0.12 long, ocular quadrangle 0.19 wide. Chelicerae, labium and sternum dark brown. Legs yellow with brown dots and hairs (Fig. 7A), leg measurements: I 3.07 (0.87, 0.19, 0.94, 0.59, 0.48); II 2.66 (0.82, 0.15, 0.75, 0.48, 0.46); III 1.90 (0.56, 0.14, 0.52, 0.34, 0.34); IV 2.32 (0.71, 0.16, 0.64, 0.43, 0.38). Abdomen dark blue.

Palp: femur 2.5 times longer than patella, tibia approximately two times longer than patella, cymbial apophysis brown and thumb-like (Figs 7C, 8A); REC 0.56; bulb egg-shaped; embolus trapezoidal, sclerotized marginally, hollow inside (Figs 7 C–D, 8 C–D), slit of embolus obscure (Fig. 8D); embolus with vertical groove located retrolaterally (black arrows on Fig. 8B, D), with a pit prolaterally (Figs 7C, 8A, C) and wrinkles at the tip (white arrows on Fig. 8 C–D).

Female. Total length 1.19 (Figs 9 A–B). Carapace 0.46 long, 0.45 wide. Abdomen 0.72 long, 0.69 wide. Coloration darker than male. Six eyes encircled by black rings, clypeus 0.09 long, ocular quadrangle 0.18 wide. Leg measurements: I 2.75 (0.82, 0.17, 0.81, 0.50, 0.45); II 2.41 (0.69, 0.17, 0.69, 0.43, 0.43); III 1.81 (0.54, 0.14, 0.50, 0.31, 0.32); IV 2.25 (0.71, 0.14, 0.64, 0.40, 0.36). Abdomen purple, with black and yellow pattern ventrally. Endogyne axe-shaped; insemination duct broad, its diameter 0.07; receptacle bag-like, 4 times wider than insemination duct (Fig. 9C).

Distribution.

Known only from the type locality (Fig. 22).