A new species of Porrhomma Simon, 1884 from the mountains of southern Siberia, Russia (Aranei: Linyphiidae: Linyphiinae)

Abstract

Porrhomma magnum sp.n. is described from the mountains of southern Siberia, Russia. The new species resembles P. longjiangensis Zhu et Wang, 1983 (sp. revalid.), but differs by certain details of genital structure, in the significantly larger size, pale body coloration, strongly reduced eyes, as well as by the chaetotaxy pattern. P. longjiangense is resurrected from the synonymy with P. rakanum Yaginuma et Saito, 1981, being also rediagnosed and accompanied by figures of the genitalia of both sexes. © ARTHROPODA SELECTA, 2012.