Exochus alpinus Zetterstedt, 1838

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 : 2343-2345

Exochus alpinus Zetterstedt, 1838

( Figures 3k , 6k )

Bassus alpinus Zetterstedt, 1838: 358 – 408 . Type: female; Type depository: ZI.

Specimens examined

( South Korea) 1 female, GB, Gyeongsan-si, Daehak-ro, Yeungnam Univ., 30 August – 25 October 2013, J.W. Lee; 1 female, GB, Kyeongju-si, Hyeongok-myeon, Namsa-ri, 18 – 25 August 2005, J.T. Mun.

Diagnosis

Female. Forewing 5.5 mm, body 6.0 mm long.

Face, mandible and malar space yellow ( Figure 3k ). Vertex with large triangular yellow marks. Yellow triangular marks and yellow inner orbits confluent. Antenna with 28 flagellomeres; antenna ventrally yellowish brown and dorsally dark blackish brown. Mesosoma black. Upper corner of pronotum and upper margin of mesopleuron yellow. Scutellum flat and mostly black, posterior margin yellow. Propodeum with lateromedian longitudinal carinae and costula; area basalis and area superomedia not separated by carina ( Figure 6k ). Fore and mid legs yellow. Hind coxa reddish yellow, hind leg yellow, hind tibia with black band apically. Forewing vein cu-a distad of Rs+M. 2 rs-m shorter than abscissa of M between 2 rs-m and 2 m-cu. Vein cu-a of hindwing intercepted at lower third, vein Cu1 of hindwing present. Area between median longitudinal carinae of tergite 1 glabrous. Median area of tergite 2 glabrous. Epipleuron of third metasomal tergite semicircular.

Distribution

South Korea (new record), Finland, Germany, Hungary, Kazakhstan, the Netherlands, Norway, Poland, Russia, Slovakia, Sweden, Ukraine, United Kingdom.

Figures

Figure 3. Head in frontal view. (a) Exochus acostulatus Lee & Choi, sp. nov.; (b) Exochus adentatus Lee & Choi, sp. nov.; (c) Exochus areolaris Lee & Choi, sp. nov.; (d) Exochus carinalis Lee & Choi, sp. nov.; (e) Exochus dentisternum Lee & Choi,sp. nov.; (f) Exochus depressus Lee & Choi, sp. nov.; (g) Exochus nigritulus Lee & Choi, sp. nov.; (h) Exochus occipitalis Lee & Choi,sp.nov.; (i) Exochus orbitalis Lee & Choi, sp. nov.; (j) Exochus propodealis Lee & Choi, sp. nov.; (k) Exochus alpinus; (l) Exochus antis. Scale bar = 0.2 mm.

Figure 6. Propodeum in dorsal view. (a) Exochus acostulatus Lee & Choi, sp. nov.; (b) Exochus adentatus Lee & Choi, sp. nov.; (c) Exochus areolaris Lee & Choi, sp. nov.; (d) Exochus carinalis Lee & Choi, sp. nov.; (e) Exochus dentisternum Lee & Choi, sp. nov.; (f) Exochus depressus Lee & Choi, sp. nov.; (g) Exochus nigritulus Lee & Choi, sp. nov.; (h) Exochus occipitalis Lee & Choi, sp. nov.; (i) Exochus orbitalis Lee & Choi, sp. nov.; (j) Exochus propodealis Lee & Choi, sp. nov.; (k) Exochus alpinus; (l) Exochus antis. Scale bar = 0.2 mm.