Orthizema nigriventre Horstmann, 1992

Verheyde, Fons, Hoekstra, Paul, Libert, Pierre-Nicolas, Meijer, Hilco, Ketelaere, Augustijn De, Vandaudenard, Thibaud, Belgers, Dick & Brosens, Edwin, 1880, Two hundred and five ichneumonid wasps reported for the first time in Belgium and the Netherlands (Hymenoptera: Ichneumonidae), Belgian Journal of Entomology 122, pp. 1-142 : 98

Orthizema nigriventre Horstmann, 1992 (Fig. 50)

Another species that can be recognised by habitus. O. nigriventre has a completely black head, mesosoma and metasoma. Its apical tergites can be somewhat white. Its antennae are tricoloured (orange-(black-)-white-black) and rather stout (third segment 2.1–2.6× as long as wide). Characteristic for this species is that the hind tibiae are strongly thickened (Fig. 50). Its head is moderately narrowed behind the eyes ( SCHWARZ & SHAW, 2011).

First report for the Netherlands; unreported Belgium.

MATERIAL EXAMINED:

THE NETHERLANDS: • 1 ♀; Den Helder , Donkere Duinen (NH); 52°56’06”N 4°43’46”E; 27/viii/2020; M. Renden leg.; field observation; F. Verheyde & M. Schwarz det. (ObsID: 199213383); Fig. 50 .