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The subfamily Oxytorinae (Hymenoptera: Ichneumonidae) is recorded from South Korea for the first time along with descriptions of two new species, Oxytorus diceratops Lee et Kasparyan sp. nov. from South Korea and O. areolator Lee et Kasparyan sp. nov. from South Korea and the South Far East of Russia. A key for identification of the Palaearctic species of Oxytorus is given. Line drawings and photos of diagnostic characters of new species are also provided.

Genera Ischyrocnemis and Terozoa (both initially monotypic) have been synonymized by H. Townes (1971) and preliminary placed in the subfamily Metopiinae. The results of molecular analyses (Quicke et al. 2009) did not clarify their systematic position. In this work Terozoa Förster, 1869 gen. resurr. (=Parablastus M. Constantineanu, 1973, syn. nov.) is restored from synonyms and placed into the subfamily Tryphoninae. Terozoa includes three species: type of the genus, Terozoa quadridens Perkins, 1962 (= Parablastus bituberculatus M. Constantineanu, 1973, syn. nov.) and two more species described earlier in Parablastus – T. iberica (Kasparyan, 1999) comb. n. and T. anatolica (Gürbüz et Kolarov, 2005) comb. n. The genus Terozoa and species T. quadridens are new records for Russia (North Caucasus, Essentuki). A key to species is provided. Four new Western Palearctic species are in Ischyrocnemis: I. femorator sp. nov. (with two subspecies: Caucasian I.f. femorator subsp. nov. and I. f. turanicus subsp. nov. from Central Asia), I. kotenkoi sp. nov. from the Transcaucasia, I. nigrans sp. nov. from steppes of Eastern Ukraine, Volga region and Kazakhstan, and I. verae sp. nov. from Kopet-Dag. A key to five species of the genus is given. Ischyrocnemis is treated provisionally in Metopiinae after H. Townes (1971), G. Broad and M. Shaw (2005). The characters common for Ischyrocnemis and Metopiinae are discussed: Ischyrocnemis approaches to Metopiinae in having the face and clypeus completely fused and clypeal fovea entirely lacking, that is unusual for most of Ichneumonidae but is typical for many Metopiinae (Acerataspis, Colpotrochia, Periope, Hypsicera, Triclistus, etc.); epipleura very wide (in metopiine present in Colpotrochia, Periope, Hypsicera, Seticornuta, Triclistus, etc.). Unusual for Metopiinae 1st metasomal segment of Ischyrocnemis (without glymmae with spiracles beyond the middle, and strongly narrowed in front of spiracles) found in Periope and in many ways is similar to some other Metopiinae (in genera Apolophus, Colpotrochia).