Cristatus, Irfan & Zhang & Peng, 2022

Irfan, Muhammad, Zhang, Zhi-Sheng & Peng, Xian-Jin, 2022, Survey of Linyphiidae (Arachnida: Araneae) spiders from Yunnan, China, Megataxa 8 (1), pp. 1-292 : 69

Cristatus gen. nov. (RƦø)

Type species: Cristatus makuensis sp. nov. (ḚNJRƦ)

Etymology. The genus name comes from the Latin adjective “ Cristatus ”, meaning “tuft” and referring to the tuft of hairs on distal arm of paracymbium in male palp. Gender is masculine.

Diagnosis. Cristatus gen. nov. resembles Vittatus Zhao and Li, 2014 in having the epigyne with scapoid ( Figs 76A, B , 80A, B ; Zhao and Li, 2014, fig. 110A), but can be distinguished from any other Erigoninae genera by the embolus long, distal portion with a coiled spiral ( Fig. 78A–C ); distal arm of paracymbium with a small curved tip and a tuft of spines ( Fig. 78B ); proximal end of reterolateral margin of cymbium with a row of thick spines ( Figs 75B, D , 78B ); dorsal tibial apophysis with teeth ( Fig. 78A–C ). Epiginal scapoid on the ventral plate in this new genus ( Fig. 76A, B ), whereas between the ventral and dorsal plate in Vittatus ( Zhao and Li, 2014, fig. 110A).

Figures

FIGURE 75. Cristatus anfractus sp. nov., male palp of holotype. A prolateral view B retrolateral view C ventral view D dorsal view.

FIGURE 76. Cristatus anfractus sp. nov., female epigyne (one of paratypes). A, B Epigyne, ventral view C Vulva, dorsal view.

FIGURE 78. Cristatus makuensis sp. nov., male palp of holotype. A prolateral view B retrolateral view C ventral view D dorsal view.

FIGURE 80. Cristatus makuensis sp. nov., female (one of paratype). A, B Epigyne, ventral view C Vulva, dorsal view.