Tersilochus (Tersilochus) gangwonus Khalaim & Lee, 2014 (Figs 36–42) Material examined. JAPAN. Hokkaido I.: 1 ♀ (ZISP) Sapporo, Hitsujigaoka, 43°00’N, 141°24’E, Malaise trap, 10–17.V.2007, coll. K. Konishi. Honshu I.: 2 ♀ (EUM) Aomori, Nishimeya-mura, Kawaratai, 40°31’N, 140°10’E, Malaise trap, 29.V–6.VI.2013, coll. T. Nakamura. 1 ♀ (EUM) same data, but 3.VI.2014. RUSSIA. Khabarovsk Reg.: 1 ♀ (ZISP) Khekhtsir, upper stream of Levaya River, 11.VI.1983, coll. D. R. Kasparyan. Diagnosis. Head and mesosoma densely granulate, impunctate. Clypeus large, granulate in upper 0.7 (Fig. 37). Malar space about as long as basal mandibular width (Fig. 38). Antenna short, with 17 flagellomeres (Fig. 39); flagellomeres 4 to 7 with distinct subapical finger-shaped structures on outer surface (Fig. 39). Notaulus absent (Fig. 38). Foveate groove of mesopleuron shallow, oblique, with weak transverse wrinkles (Fig. 38). Propodeal spiracle very small, separated from pleural carina by one diameter of spiracle (Fig. 38). Propodeum with basal keel (Fig. 40). First tergite smooth laterally and dorsally (Figs 38, 41); postpetiole in dorsal view much wider than petiole (Fig. 41); glymma large, joining by distinct furrow to ventral part of postpetiole (Fig. 38). Thyridial depression very short, strongly transverse (Fig. 41). Ovipositor short, weakly upcurved, with weak dorsal subapical depression and more or less distinct rounded tooth before this depression (Fig. 42). Predominantly dark brown and black species (Fig. 36). Distribution. Russian Far East, South Korea; in Japan known from Hokkaido and Honshu islands. First record from Japan and Russia.

Published as part of Khalaim, Andrey I., 2022, Tersilochinae (Hymenoptera: Ichneumonidae) of Japan: two new species, a new combination and 23 new country records, pp. 301-330 in Zootaxa 5174 (4) on page 316, DOI: 10.11646/zootaxa.5174.4.1, http://zenodo.org/record/6986348