Pinelema yunchuni Zhao & Li

Zhao, Huifeng, Yao, Zhiyuan, Song, Yang & Li, Shuqiang, 2018, Taxonomic study of the Pinelemabailongensis species group with descriptions of six new species from China (Araneae, Telemidae), ZooKeys 784, pp. 7-57 : 7

Pinelema yunchuni Zhao & Li sp. n. Figs 25, 26, 27, 31

Type material.

Holotype ♂ (IZCAS): China, Guangxi Zhuang Autonomous Region, Hechi Prefecture, Du’an County, Gaoling Town, Sanlian Village, Cave without a name, 24°02.340'N, 108°03.720'E, 225 m, 12.III.2015, Y. Li and Z. Chen leg. Paratypes (IZCAS): 3♂ and 5♀, same data as holotype.

Other material examined.

5♀ (molecular vouchers, IZCAS), same data as holotype.

Etymology.

The specific name is a patronym in honor of the collector Yunchun Li.

Diagnosis.

This species resembles P. wangshang Zhao & Li, sp. n. (Figs 18-20) but can be distinguished by following characters: bulb pear-shaped (Figs 25A, B, 26C, D) (bulb kidney-shaped in P. wangshang Zhao & Li, sp. n.), not curved dorso-medially (Figure 26C, D) (bulb curved dorso-medially in P. wangshang Zhao & Li, sp. n.), larger El/Bl ratio (1.78-1.82, n = 4, mean: 1.80, Figs 25B, 26D) (smaller El/Bl ratio 1.37-1.45, n = 5, mean: 1.41 in P. wangshang Zhao & Li, sp. n.), and receptacle U-shaped (Figure 27C) (receptacle J-shaped in P. wangshang Zhao & Li, sp. n.).

Description.

Male (holotype): Total length 1.27. Carapace 0.56 long, 0.53 wide. Abdomen 0.68 long, 0.56 wide. Carapace light brown with black speckles (Figure 26A). Six eyes ringed with black, clypeus height 0.10, ocular quadrangle 0.17 wide (Figure 26A). Chelicerae, legs, labium, and endites light brown. Sternum dark brown. Leg measurements: I 4.43 (1.33, 0.22, 1.41, 0.86, 0.61); II 3.63 (1.08, 0.21, 1.14, 0.67, 0.53); III 2.64 (0.81, 0.19, 0.76, 0.45, 0.43); IV 3.21 (1.04, 0.19, 0.94, 0.59, 0.45). Abdomen blue with sparse setae (Figure 26A).

Palp: Tibia 2.3 times longer than patella, cymbium 2.0 times longer than tibia, cymbial apophysis brown and cone-shaped (Figs 25A, 26C); bulb nearly pear-shaped (Figs 25 A–B, 26 C–D) with papillae proximo-retrolaterally (Figure 25B); spiral ridge brown (Figure 26B), El/Bl ratio 1.81 (Figure 26D), Esl/El ratio 0.44 (Figure 26D).

Female: Total length 1.52. Carapace 0.61 long, 0.56 wide. Abdomen 0.89 long, 0.89 wide. Coloration and pattern as in male (Figure 27 A–B). Six eyes, well developed, clypeus height 0.12, ocular quadrangle 0.17 wide (Figure 27A). Leg measurements: I 4.35 (1.33, 0.22, 1.39, 0.70, 0.71); II 3.54 (1.08, 0.20, 1.10, 0.63, 0.53); III 2.62 (0.80, 0.19, 0.75, 0.48, 0.40); IV 3.28 (1.03, 0.20, 1.01, 0.61, 0.43). Insemination duct as wide as receptacle (Figure 27C); receptacle U-shaped, slightly swollen at end (Figure 27C).

Variation.

In 3♂ paratypes: El/Bl ratio 1.78-1.82, Esl/El ratio 0.43-0.45.

Distribution.

China (Guangxi, Figure 31), known only from the type locality.