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 ventralis Holmgren, 1858 ( Figures 5e, l ) Exochus ventralis Holmgren, 1858: 305 – 394 . Lectotype : female; Type depository: NR. Specimens examined ( South Korea ) 1 male , GG Ganghwa-do , Hwado , Manisan , Heungwang-ri , 24 September 1994 , H .S. Won ; 1 male , GN Jinju-si , Gajoa-dong , 9 June 1987 , J .K. Kim ; 1 female , ditto, 20 June 1989 , J .K. Kim. Diagnosis Male. Body length 7.0 – 7.5 mm . Antenna with 34 flagellomeres. Head strongly convex, upper face with long projection and recurved; between antennal sockets with vertical ridge; dorsal margin of eyes with triangular yellow spots. Face black except margin of projection. Malar space black ( Figure 5e ). Pronotum sunken. Scutellum and postscutellum black. Propodeum without area superomedia ( Figure 5l ); area externa with hairs; area dentipara without hair; spiracle of propodeum ellipse; metapleuron glabrous. Vein cu-a of hindwing intercepted at lower 0.3, with vein Cu1 . Tergite 1 with short and broad dorsal longitudinal carina, not reaching central area of tergite 1, almost parallel; median longitudinal area of tergites 1 and 2 without hair. Tergite 3 with epipleuron semicircular. Distribution South Korea (new record), Austria , Belgium , France , Poland , Romania , Russia , Sweden , Ukraine .