Dusona genalis (Thomson, 1887)

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 : 39

Dusona genalis (Thomson, 1887)

This species has to be collected to be identified. Although the excellent key by HORSTMANN (2009) is quite technical, many species can be excluded based on the amount of flagellomeres (in casu around 53) and total length (in casu 11 mm). Typical for D. genalis is that its frons has a rather fine median longitudinal carina, and the femora are completely black. Several hosts are common lepidopterans in the Low Countries ( HORSTMANN, 2011).

First report for Belgium; unreported in the Netherlands.

MATERIAL EXAMINED:

BELGIUM: • 1 ♀; Steenhuffel (VB); 50°59'57"N 4°16'20"E; 21/iv/2018; S. De Rycke leg.; coll. SDR; field observation; F. Verheyde det. (ObsID: 155135279) . • 1 ♀; Elverdinge , Galgenbossen (WVL); 50°52’06”N 2°46’59”E; 2/vi/2019; F. Verheyde leg.; coll. FV; field observation; F. Verheyde det. (ObsID: 173660838) .