Troglocoelotes liangensis Z. Zhao & S. Li, 2019

Li, Bing, Zhao, Zhe, Zhang, Chuntian & Li, Shuqiang, 2019, Troglocoelotes gen. n., a new genus of Coelotinae spiders (Araneae, Agelenidae) from caves in South China, Zootaxa 4554 (1), pp. 219-238 : 223-226

Troglocoelotes liangensis Z. Zhao & S. Li sp. n.

Figs 5–6 , 14

Type material. Holotype 6 (IZCAS-Ar34083): Liang Cave (N23°40.011’, E106°33.111’, 464 m), Tianyang County, Baise City , Guangxi Zhuang Autonomous Region, China, 12. XII. 2015, X. Zhang and Z. Chen leg. Paratypes: 2♀♀ (IZCAS-Ar34084-Ar34085): same cave (N23°40.118’, E106°33.957’, 464 m), 18. XII. 2012, Z. Zhao and Z. Chen leg; 3♀♀ (IZCAS-Ar34086-Ar34088): same cave (N23°39.954’, E106°34.166’, 473 ± 4 m), 7. XII. 2017, Z. Chen leg.

Etymology. The specific name refers to the type locality, Liang Cave; adjective.

Diagnosis. The male can be distinguished from T. qixianensis sp. n. by conductor with lamella vs. no lamella. From the similar T. tortus by the blunt tip of the patellar apophysis, wider embolus vs. filariform, and smaller median apophysis. From the similar T. yumiganensis sp. n. by the long cymbial furrow and no spine next to the RTA ( Fig. 5C ). Females from the similar T. tortus by epigynal atrium lip-shaped, epigynal teeth pointed medially vs. anteriorly, and copulatory ducts 2 times wider than in T. tortus ( Fig. 6 A–B).

Description. Male (holotype, IZCAS-Ar34083): Total length 4.63. Carapace 2.42 long, 1.56 wide. Abdomen 2.21 long, 1.53 wide. Eyes reduced, with 2 spots. Leg pale. Leg measurements: I: 10.00 (2.81, 3.13, 2.34, 1.72); II: 9.12 (2.56, 2.81, 2.19, 1.56); III: 8.45 (2.34, 2.51, 2.19, 1.41); IV: 11.25 (2.97, 3.36, 3.20, 1.72). Abdomen grey. Palp: patellar apophysis shorter than width of patella, blunt tip; VTA wide; RTA small, width about 1/3 the width of VTA; cymbial furrow more than 2/3 the length of the cymbium; embolus beginning at 6 o’clock position; conductor simple with a wide dorsal apophysis and a small lamella ( Fig. 5 A–C).

Female (paratype, IZCAS-Ar34084): Total length 4.29. Carapace 2.08 long, 1.41 wide. Abdomen 2.21 long, 1.39 wide. Chelicerae white. Leg measurements: I: 8.02 (2.34, 2.51, 2.03, 1.14); II: 7.90 (2.19, 2.51, 1.88, 1.32); III: 7.35 (2.03, 2.19, 1.88, 1.25); IV: 10.15 (2.56, 3.06, 2.97, 1.56). Epigyne: atrium occupying less than 1/4 of the epigynal plate, situated at the central part of epigyne; the posterior margin of epigynal atrium oval; teeth small, width 2 times wider than length, located anteriorly, spaced of each other by more than 7 widths; copulatory ducts wider than spermathecal width ( Fig. 6 A–B).

Distribution. China (Guangxi) ( Fig. 14 ).

Figures

FIGURE 5. Troglocoelotes liangensis Z. Zhao & S. Li sp. n., holotype male. A–C. Left palp (A. Prolateral view; B. Ventral view; C. Retrolateral view). Scale bar: 0.20 (A–C).

FIGURE 6. Troglocoelotes liangensis Z. Zhao & S. Li sp. n., holotype male (C) and paratype female (A–B, D–E). A. Epigyne, ventral view; B. Same, dorsal view; C–E. Habitus (C–D. Dorsal view; E. Ventral view). Scale bars: 0.20 (A–B), 1.00 (C–E).

FIGURE 14. Distribution records of Troglocoelotes species from South China. 1. T. bailongensis Z. Zhao & S. Li sp. n.; 2. T. banmenensis Z. Zhao & S. Li sp. n.; 3. T. liangensis Z. Zhao & S. Li sp. n.; 4. T. nongchiensis Z. Zhao & S. Li sp. n.; 5. T. proximus (Chen, Zhu & Kim, 2008) comb. n.; 6. T. qixianensis Z. Zhao & S. Li sp. n.; 7. T. tortus (Chen, Zhu & Kim, 2008) comb. n.; 8. T. yosiianus (Nishikawa, 1999) comb. n.; 9. T. yumiganensis Z. Zhao & S. Li sp. n.