Psechrus Thorell, 1878

Feng, Ping, Zhao, Yu, Wu, Xiu-Mei, Ma, Yan-Yan, Yang, Ting-Bang, Li, Cheng-Gong & Yang, Zi-Zhong, 2016, Four new species of Psechrus from Yunnan Province, China (Araneae, Psechridae), Zootaxa 4088 (2), pp. 177-200 : 178

Genus Psechrus Thorell, 1878

All Psechrus species are similar in the following characters: Carapace brown to light brown, with deep brown median band ( Fig. 1a ). Both anterior and posterior eye row recurved ( Fig. 1c ). The secondary eyes with grateshaped tapeta ( Fig. 1f ). Chelicerae with 3 promarginal, 4 to 5 retromarginal teeth, and several central denticles ( Fig. 1g ). Ventral opisthosoma with a white longitudinal band ( Fig. 1b ) and divided cribellum ( Fig. 1e ). According to Bayer (2012), the relation of the width of the white longitudinal band to the width of one half of the cribellum may differ between the particular Psechrus species groups. Leg I or leg II of males may exhibit several short macrosetae at coxae ( Fig. 1d ) or 2 to 4 macrosetae at trochanteri. For a detailed genus diagnosis and description see Bayer (2012).

Figures

FIGURES 1 a – g. Psechrus spp, showing generic characters. a – b habitus (a dorsal, b ventral); c, f eyes (c overlook, show eye row arrangement, f show grate-shaped tapeta of posterior median eye); d coxae of legs I – II, ventral; e cribellum, ventral; g chelicerae, ventral.