Prodidomus redikorzevi Spassky, 1940 a species described from the southern Turkmenistan on the basis of female and known also in Kazakhstan is redescribed on the basis of material collected close to type locality. Its male is described for the first time, as well as the structure of vulva. Male of this species has very unusual conformation of the palp. Specimens from Turkmenistanare compared with similar specimens from Iran and Azerbaijan and some differences have been found between different populations that may reflect that each population studied represents separate species.
A group of small-sized species of the genus Cybaeus in western Japan are reviewed and listed under the name Cybaeus hiroshimaensis-group on the basis of genital morphology, retreat type and geographic distribution. The species group contains eleven species, four of which are described as new:C. okumae, C. sasayamaensis, C. nagaiae and C. nagusa. New records of the other seven species are provided:C. hiroshimaensis Ihara 1993, C. gonokawa Ihara 1993, C. tsurusakii Ihara 1993, C. nojimai Ihara 1993, C. okayamaensis Ihara 1993, C. taraensis Irie & Ono 2001 and C. biwaensis Kobayashi 2006. The hiroshimaensis-group is distributed over western Japan, corresponding to the western part of Honshu and northern Kyushu. Distributional ranges of species in the group are parapatric one another, though sometimes they partially overlap. They show remarkable diversity in the genital morphology. This group is also characterized by having the silken tube-like retreat with three terminal openings, instead of two in most other Japanese species of Cybaeus. In addition, Dolichocybaeus Kishida in Komatsu 1968 and Heterocybaeus Komatsu 1968 are newly synonymized with Cybaeus.
A new species of the genus Phrurolithus belonging to family Corinnidae from Mt. Cangshan of Yunnan Province, China, is diagnosed, described and illustrated under the name of Phrurolithus cangshanensis sp. nov.
A new species, Chaerilus mainlingensis sp. nov., is described from Xizang in China. The present new species is distinguished from the congeners by chela with width/length ratio more than 2.4, seven rows of denticles on fixed and movable fingers of pedipalp chelae, three or four pectinal teeth in females, and almost smooth teguments of the seventh sternite and all of the metasomal segments.
A new species belonging to the family Theridiidae is described from Okayama Prefecture, western Japan, under the name of Rhomphaea annulipedis. Habitats of five Japanese species of Rhomphaea are recorded.