To the knowledge of the linyphiid spider fauna (Aranei: Linyphiidae) of limestone steppes in the Russian Plain

• Main Authors: A.V. Tanasevitch, Y.G. Alekseenko
• Format: Article
• Language: Russian
• Published: Russian Academy of Science. Southern Scientific Centre. Federal Research Centre 2012-12-01
• Series: Кавказский энтомологический бюллетень
• Subjects: Aranei; Linyphiidae; fauna; limestone steppes; chorology; Russia; Russian Plane; Ulyanovsk Region
• Online Access: http://www.ssc-ras.ru/files/files/1_%20Tanasevitch.pdf

A checklist of 28 linyphiid spider species found in limestone steppes in the Ulyanovsk Region, Russia is provided. Fifteen species are new to the region while two, Heterotrichoncus pusillus (Miller, 1958) and Syedra apetlonensis Wunderlich, 1992, are new to the fauna of Russia. Neither specific elements nor particular species complexes inherent to limestone steppes or denudations have been revealed, based on the above material. Two faunistic complexes, western and eastern, are distinguished in the steppe linyphiid fauna of the Russian Plain. The fauna of the western sector is mainly composed of widespread polyzonal species while that of the eastern sector includes a considerable number of specific steppe elements which form the nucleus of the steppe fauna and are largely represented by elements of Asian origins