Contribution to the fauna of Tydeidae (Acari: Prostigmata) from Western Siberia, Russia

Abstract

The fauna of Tydeidae of Western Siberia is reviewed. A total of 27 species from eight genera were found in Tyumen and Kurgan Regions. Two species, Lorryia sibiriensis n. sp. and L. speciosa n. sp. are described as new for science; Lorryia evansi Baker is recorded from Russia for the first time and redescribed based on materials from Tyumen Region; Lorryia paravarsoviensis (Momen and Lundqvist), L. subularoides Kaźmierski, L. arkadiensis Panou and Emmanouel, L. argutus (Kuznetsov and Petrov) n. comb., L. serpettae (Momen and Lundqvist) n. comb., L. szeptyckii (Kaźmierski) n. comb., L. filiformis (Momen and Lundqvist), L. grandiinsignia Kaźmierski, Nudilorryia obsequens Kaźmierski, Paralorryia formosa (André), Calotydeus edwardbakeri (Kaźmierski), Tydeus nieuwkerkeni André, T. spathulatus Oudemans and Metalorryia delicata (Kuznetsov) are recorded in Russia for the first time. After examination of the holotype of Paralorryia formosa Livshitz this species is moved to Nudilorryia. Morphological characters separating two closely related species, Lorryia catenulata (Thor) and L. polita Kuznetsov, are also provided.