Анотація:
The Leuctridae fauna from Siberia and the Far East studied by the author includes 11 species of 4 genera: Leuctra 1, Perlomyia — 2, Paraleuctra — 3, Rhopalopsole — 5. The Strobliella (now Tyrrhenoleuctra) genus is struck off the stoneflies fauna of the USSR and the Strobliella secunda Z a p.— D u l k. species is transferred to the Perlomyia genus known before only from North America. Leuctra orientalis C h u. is also struck of f the list of the USSR fauna species as determined erroneously. Paraleuctra cercia (O k a m.) species is redescribed; this species, as well as P. gracilis Ka w a i is mentioned for the first time for the USSR fauna. Only one palearctic species, Leuctra fusca L., is determined in the Siberian and Far East fauna. The others are characterized by rather narrow areas of distribution not exceeding the bounds of the Palearctic eastern part.