Subdivision of the tribe Oligaphorurini in the light of new and lesser known species from North-East Russia (Collembola, Onychiuridae, Onychiurinae)

Abstract

The paper is devoted to a taxonomic review of Oligaphorurini from the north-eastern part of Palaearctic. Two new species, i.e. Oligaphorura ambigua sp. n. and O. duocellata sp. n., are described. Four species, O. nataliae (Fjellberg, 1987), O. interrupta (Fjellberg, 1987), O. pingicola (Fjellberg, 1987), and Micraphorura alnus (Fjellberg, 1987), are redescribed on base of the types and new material, and remarks on other species known for the region, O. groenlandica (Tullberg, 1876), O. ursi (Fjellberg, 1984), O. aborigensis (Fjellberg, 1987), and M. absoloni (Börner, 1901), are given to clarify their generic affiliation. Finally, merits and disadvantages of the current subdivision of the tribe are discussed and a key to the northern species of the tribe is provided.