Exochus nigrifaciatus Momoi, Kusigemati & Nakanishi, 1968

Choi, Jin-Kyung, Kolarov, Janko & Lee, Jong-Wook, 2016, A taxonomic review of the genus Exochus Gravenhorst (Hymenoptera: Ichneumonidae: Metopiinae) from South Korea with descriptions of ten new species, Journal of Natural History 50, pp. 2327-2367 : 2357-2358

Exochus nigrifaciatus Momoi, Kusigemati & Nakanishi, 1968

( Figures 5b, i )

Exochus nigrifaciatus Momoi, Kusigemati & Nakanishi, 1968: 211 . Type: female; Type depository: KU .

Specimens examined

( South Korea) 1 female 1 male, GB Gyongsan-si, Yeungnam Univ., 13 September 1988, J.K. Kim , 1 male, Woljeongsa, 30 July 1981, Y .J. Cheon .

Diagnosis

Female. Body length 9.0 mm. Antenna with 40 flagellomeres.

Head strongly convex, upper face with short projection; between antennal sockets without vertical ridge; dorsal margin of eyes with small triangular yellow spots. Face, clypeus and malar space black ( Figure 5b ). Pronotum strongly sunken. Scutellum and postscutellum black. Propodeum without area superomedia ( Figure 5i ); area externa with hairs; area dentipara with sparse hairs partly; spiracle of propodeum ellipse; lower area of metapleuron partly sparse hair. Vein cu-a of hindwing intercepted at lower 0.2, with vein Cu1 trace. Tergite 1 with broad dorsal longitudinal carina, reach central area of tergite 1, up-curved in basal area; between dorsal longitudinal carinae without hair. Tergite 3 with epipleuron wedge-shaped, the basal part not convex.

Distribution

South Korea (new record), Japan, Russia.

Figures

Figure 5. Head in frontal view. (a) Exochus momoii; (b) Exochus nigrifaciatus; (c) Exochus selenanae; (d) Exochus velatus; (e) Exochus ventralis; (f) Exochus vexator; (g) Exochus villosus; (h) Exochus momoii; (i) Exochus nigrifaciatus; (j) Exochus selenanae; (k) Exochus velatus; (l) Exochus ventralis; (m) Exochus vexator; (n) Exochus villosus. Scale bar = 0.2 mm.