New data on spiders (Arachnida, Aranei) of Kamchatka, Russia

Abstract

<p>Since 1885 and for almost a century the Kamchatka Peninsula had been a region of Russia east of the Urals with the best studied spider fauna. Currently, Kamchatka can be considered the least studied Siberian region. In this paper, we have provided a brief overview of Tatyana V. Pavlenko's spider collection compiled in Kamchatka in 1988-1992. A species list contains 108 species belonging to 15 families, of which 25 species, five genera and the family Titanoecidae are new to the spider fauna of Kamchatka. <i>Walckenaeria subspiralis</i> Millidge, 1983 is recorded from the Palaearctic Region for the first time. <i>Kolymocyba petrophila</i> Eskov, 1989 previously known from Magadan Area only is illustrated to provide more detail data about its morphology. The female of <i>Micaria yeniseica</i> Marusik & Koponen, 2002 that was previously known from the holotype male from the middle reaches of Yenisei River only is described for the first time. Two species – <i>M. yeniseica</i> and <i>Zelotes azsheganovae</i> Esyunin & Efimik, 1992 – significantly extended their known range to the east. Based on new data, a total number of the spider species known from Kamchatka has extended to 273.<br /></p>