Adelognathus pusillus Holmgren, 1857

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 : 26

Adelognathus pusillus Holmgren, 1857 (Fig. 4)

A. pusillus can be identified by the following characteristics: face completely yellow, hind coxae predominantly yellow and fore wing with 3r-m (weakly) present (Fig. 4). This ichneumonid species is a parasitoid of the concealed larvae of Phyllocolpa spp. (Symphyta: Tenthredinidae ). Being caught in August it matches known phenological records (FITTON et al., 1982). First report for Belgium and the Netherlands.

MATERIAL EXAMINED:

BELGIUM: • 1 ♂; Wingene , Predikherenbossen (WVL); 51°04’21”N 3°20’01”E; 26/iv/2020; A. De Ketelaere & L. Lams leg.; coll. ADK; field observation; A. De Ketelaere det. (ObsID: 207730971); Fig. 4 .

THE NETHERLANDS: • 1 ♀; Olterterp (FR); 53°04’11”N 6°06’20”E; 28/viii/2015; H. Meijer leg.; coll. HM; field observation; H. Meijer det.