Pinelema shiba Zhao & Li sp. nov. Figures 3C, 6, 7, 31

Type material.

Holotype: ♂ (IZCAS); China, Guangxi Zhuang Autonomous Region, Chongzuo Prefecture, Daxin County, Hucheng Town, Baoxian Village, Shiba Cave. 22.8133N, 107.1632E, elevation ca. 157 m. 17.XI.2011, C. Wang leg. Paratypes: 1♂ and 2♀ (IZCAS), same data as holotype.

Etymology.

The species name refers to the type locality; noun in apposition.

Diagnosis.

Pinelema shiba sp. nov. resembles P. podiensis but can be distinguished by the following: the strongly concave dorso-mesial part of the bulb (Fig. 6C, D) (vs. weakly concave), the ratio of the bulbal length/width is 1.33 (Fig. 6C, D) (vs. 1.75); the tip of the receptacle is 4.10 times wider than the neck (Fig. 7C) (vs. 2.20 times).

Description.

Male (holotype). Total length 1.22. Carapace 0.51 long, 0.48 wide. Abdomen 0.71 long, 0.63 wide. Carapace brown (Fig. 6A). Six vestigial eyes (Fig. 6A). Chelicerae, legs, labium, and endites light brown (Fig. 6A). Sternum light brown with sparse setae. Leg measurements: I 5.00 (1.47, 0.21, 1.60, 1.06, 0.66); II 4.26 (1.28, 0.21, 1.33, 0.88, 0.56); III 3.05 (0.97, 0.18, 0.89, 0.56, 0.45); IV 3.55 (1.23, 0.17, 1.00, 0.65, 0.50). Abdomen pale yellow with a few long setae.

Palp. Tibia 2.30 times longer than patella, cymbium 1.91 times longer than tibia, 1.90 times longer than femur, cymbial apophysis short, as long as 1/4 width of cymbium base (Fig. 6C); bulb strongly concave dorsally (arrow in Fig. 6C, D); embolus triangular and half as long as cymbium (Fig. 6C, D), spiral ridge brown (Fig. 6B).

Female. Total length 1.39. Carapace 0.54 long, 0.50 wide. Abdomen 0.82 long, 0.73 wide. Six eyes ringed with black (Fig. 7B). Coloration similar to male (Fig. 7B, C). Leg measurements: I 4.94 (1.52, 0.21, 1.56, 1.00, 0.65); II 4.18 (1.31, 0.20, 1.27, 0.85, 0.55); III 3.08 (1.00, 0.19, 0.91, 0.53, 0.45); IV 3.92 (1.25, 0.19, 1.19, 0.78, 0.51). Abdomen brown (Fig. 7B, C). Receptacle U-shaped with several membranous tubes, distally swollen (Fig. 7A).

Distribution.

China (Guangxi, site 15 in Fig. 31), known only from the type locality.