Dusona minor (Provancher, 1879)

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 minor (Provancher, 1879)

This species has the epipleurum of the third tergite completely fused with the tergite. As its name suggests it is a smaller species (6–8 mm) with a smaller amount of flagellomeres (34-37 for females). The ventral part of the prepectal carina is not raised. Characteristically for this species is that the hind corners of the pronotum are produced to a flange, which projects about as far as the tegulae and is rounded apically ( HORSTMANN, 2009). Our specimen has the hind tibiae black; its fifth tergite is partly reddish. All the known hosts are quite rare or even unreported (see HORSTMANN, 2011; YU et al., 2012). Eupithecia lariciata (Freyer, 1841) ( Lepidoptera : Geometridae ) seems to be the most plausible candidate (FINLAYSON, 1975).

First report for the Netherlands; unreported in Belgium.

MATERIAL EXAMINED:

THE NETHERLANDS: • 1 ♀; Twijzel (FR); 53°14’53”N 6°04’56”E; 28/v/2012; Landschapsbeheer Friesland leg.; coll. HM; malaise trap 215 (24–28); H. Meijer det.