A taxonomic review of the genus Exochus Gravenhorst (Hymenoptera: Ichneumonidae: Metopiinae) from South Korea with descriptions of ten new species Author Choi, Jin-Kyung Department of Life Sciences, Yeungnam University, Gyeongsan, South Korea; Author Kolarov, Janko Faculty of Pedagogy, University of Plovdiv, Plovdiv, Bulgaria Author Lee, Jong-Wook Department of Life Sciences, Yeungnam University, Gyeongsan, South Korea; text Journal of Natural History 2016 2016-05-31 50 2327 2367 http://dx.doi.org/10.1080/00222933.2016.1197335 journal article 21247 10.1080/00222933.2016.1197335 9e8a020a-c322-48a0-935d-ae3ff9c1f1c2 1464-5262 3993034 B28700A7-9CA7-4AE7-9816-9C8F4CD46160 Exochus gratus Tolkanitz, 2003 ( Figures 4g , 7g ) Exochus gratus Tolkanitz, 2003: 1075 – 1085 . Type : female; Type depository: ZIN . Specimens examined ( South Korea ) 1 male , GB, Cheongdo-gun, Unmun-myeon, Unmunsan U2, 30 May – 16 June 2009 , J.W. Lee. Diagnosis Male. Forewing 3.0 mm, body 3.5 mm long. Face dark brown and upper part of face yellow ( Figure 4g ). Mandible yellow and malar space dark brown. Vertex with small circular yellow spots. Antenna with 20 flagellomeres; antenna dark blackish brown. Mesosoma black. Upper margin of pronotum dark brown. Scutellum almost flat and black. Propodeum without costula and lateromedian longitudinal carinae incomplete ( Figure 7g ); area basalis and area superomedia not separated by carina. Fore and mid legs brown to dark reddish brown. Hind leg reddish brown to dark brown, tibia with black band apically. Vein Cu-a of forewing distad of vein Rs+M . Vein 2 rs-m as long as vein between 2 rs-m and 2 m-cu . Vein cu-a of hindwing intercepted at lower part, vein Cu1 of hindwing vestigial. Area between median longitudinal carinae of tergite 1 glabrous, median longitudinal carinae short. Tergite 2 sparsely punctate. Epipleuron of third metasomal tergite semicircular. Distribution South Korea (new record), Russia .