Collembola of the genus Protaphorura Absolon, 1901 (Onychiuridae) in the Eastern Palearctic: morphology, distribution, identification key

Seven new species, Protaphorura jernika sp. n., Protaphorura abscondita sp. n., Protaphorura tuvinica sp. n., Protaphorura vasilinae sp. n., Protaphorura sayanica sp. n., Protaphorura oligopseudocellata sp. n. and Protaphorura nikolai sp. n. from different habitats of the southern Siberia and Far East of Russia, are described. Protaphorura ombrophila (Stach, 1960) is redescribed based on the type specimens. These species differ one from other and from all known species by dorsal and ventral pseudocellar formulae, number of pseudocelli on subcoxae 1 of legs I–III, parapseudocellar formula, chaetotaxy of body, structure of claw, size of postantennal organ and body length. Geographical distribution of all known Protaphorura species of Eastern Palearctic was analysed and an identification key to 50 species was provided