Notopygus Holmgren, 1857

Watanabe, Kyohei, 2024, Taxonomic Study of Japanese Ctenopelmatinae (Hymenoptera, Ichneumonidae), with Descriptions of 22 New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 53, pp. 39-102 : 43

Genus Notopygus Holmgren, 1857

Notopygus Holmgren, 1857: 115 . Type species: Notopygus emarginatus Holmgren, 1857 . Designated by Viereck (1912).

Antipygus Tschek, 1869: 438 . Type species: Antipygus megerlei Tschek, 1869 . Monotypic.

A single species, N. nigricornis Kriechbaumer, 1891 , has been recorded from Shikotan Island, Japan. In this study, I describe two new species below. All Japanese species have the following combination of character states: antenna without a white band ( Figs. 4A , 5A ); face black ( Figs. 4B , 5B ); base of T II with a pair of median longitudinal carinae ( Figs. 4E , 5E ).

Figures

Fig. 4. Notopygus bicornis sp. nov. (KPM-NK 81355, holotype, female) ― A: lateral habitus; B: head, frontal view; C: mesopleuron and metapleuron, lateral view; D: areolet; E:T II, dorso-lateral view.

Fig. 5. Notopygus japonicus sp. nov. (A, C–E: KPM-NK 84831, holotype, female; B: KPM-NK 91473, paratype, female) ― A: lateral habitus; B: head, frontal view; C: mesopleuron and metapleuron lateral view; D:areolet; E: T II, dorsolateral view.