Tanasevitch A.V.*, Piterkina T.V.** 2012. A new Trichoncoides Denis, 1950 (Aranei: Linyphiidae) from a semi-desert in the Caspian Lowland // Russian Entomol. J. Vol.21. No.2: 189–196 [in English].

* Centre for Forest Ecology and Production, Russian Academy of Sciences, Profsoyuznaya Str., 84/32, Moscow 117997, Russia. E-mail: and-tan@mail.ru

** Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect, 33, Moscow 119071, Russia. E-mail: piterkina@yandex.ru

KEY WORDS: Spiders, Linyphiidae, new species, semi-desert, steppe.

ABSTRACT. A new linyphiid species of the genus Trichoncoides is described from a clayey semi-desert in the environs of both Dzhanybek, western Kazakhstan and Lake Elton, Volgograd Area, southern Russia. The new species is similar to T. piscator (Simon, 1884), but differs well by the peculiar shape of the palpal tibia, of the anterior radical process in the male, as well as by the details of epigyne and vulva structure in the female.

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