Cirrosus atrocaudatus, Zhao, Qingyuan & Li, Shuqiang, 2014

Zhao, Qingyuan & Li, Shuqiang, 2014, A survey of linyphiid spiders from Xishuangbanna, Yunnan Province, China (Araneae, Linyphiidae), ZooKeys 460, pp. 1-181 : 10-11

Taxon classification Animalia Araneae Linyphiidae

Cirrosus atrocaudatus sp. n. Figs 20, 21, 22, 23

Types.

Holotype ♂: CHINA, Yunnan: Menglun Town: Xishuangbanna Tropical Botanical Garden, 21°54.600'N, 101°17.084'E, elevation ca 640 m, 17.11.2009, Lvshilin tropical rain forest, fogging. Paratypes 1♂, same data as holotype; 1♂, 21°55.035'N, 101°16.500'E, elevation ca 558 m, 22.07.2009, primary tropical seasonal rain forest, fogging; 3♂1♀, 21°53.646'N, 101°16.957'E, elevation ca 589 m, 26.11.2009, bamboo plantation, fogging.

Etymology.

The name for this species comes from the Latin word ‘ater’ and ‘cauda’. The former means ‘black’, and the latter means ‘tail’. The combination refers to the dark end of the male’s abdomen; adjective.

Diagnosis.

See diagnosis of the genus.

Description.

Male (holotype). Total length: 1.41. Carapace 0.63 long, 0.50 wide, unmodified, light yellow. Sternum 0.31 long, 0.38 wide. Clypeus 0.19 high. Chelicerae promargin with 4 teeth, retromargin with 3 teeth. Eye sizes and interdistances: AME 0.06, ALE 0.06, PME 0.07, PLE 0.06, AME-AME/AME 0.33, PME-PME/PME 0.57, AME-ALE/ALE 0.33, PME-PLE/PLE 0.13, coxae IV separated by 1.92 times their width. Length of legs: I 2.05 (0.56, 0.18, 0.50, 0.50, 0.31), II 2.19 (0.61, 0.17, 0.55, 0.55, 0.31), III 1.64 (0.45, 0.16, 0.34, 0.42, 0.27), IV 2.02 (0.55, 0.17, 0.47, 0.52, 0.31). Leg formula: II-I-IV-III. Abdomen pale, with black posterior tip (Fig. 21C). Palp: see description of the genus.

Female (one of paratypes). Total length: 1.30. Carapace 0.60 long, 0.46 wide, tanned. Sternum 0.36 long, 0.33 wide. Clypeus 0.14 high. Chelicerae promargin with 4 teeth, retromargin with 3 teeth. Eye sizes and interdistances: AME 0.03, ALE 0.04, PME 0.04, PLE 0.05, AME-AME/AME 0.10, PME-PME/PME 0.10, AME-ALE/ALE 0.20, PME-PLE/PLE 0.40, coxae IV separated by 1.60 times their width. Length of legs: I 1.76 (0.50, 0.19, 0.40, 0.38, 0.29), II 2.02 (0.53, 0.18, 0.46, 0.44, 0.31), III 1.46 (0.39, 0.16, 0.30, 0.34, 0.27), IV 1.86 (0.48, 0.16, 0.48, 0.45, 0.29). Leg formula: II- IV-I-III. Abdomen beige, with dark posterior tip. Epigyne: see description of the genus.

Distribution.

Known only from type localities.