Listrognathus mactator (Thunberg, 1824)

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 : 61

Listrognathus mactator (Thunberg, 1824) (Fig. 27)

Listrognathus mactator is the only species in the genus with a red metasoma and white apical tergites (Fig. 27). Its femora seem to vary from black or dark brown to red, even outside the regions originally outlined by HORSTMANN (1989). It is probably uncommon, but still expected to be present in Belgium. There is one known host Earias insulana (Boisduval, 1833) ( Lepidoptera : Nolidae ), but this species is very rare, suggesting other unknown hosts exist.

First report for the Netherlands; unreported in Belgium.

MATERIAL EXAMINED:

THE NETHERLANDS: • 1 ♀; Dongen (NB); 51°38’54”N 4°59’11”E; 3/x/2010; P. Fleurbaaij leg.; field observation; M. Schwarz det. (ObsID: 50359150) . • 1 ♀; Eindhoven , Stratumse Heide (NB); 51°24’30”N 5°30’17”E; 15/viii/2016; R. Aussems leg.; field observation; M. Schwarz det. (ObsID: 122631708) . • 1 ♀; Wageningen (GE); 51°57’59”N 5°40’24”E; 20/v/2020; D. Belgers leg.; field observation in skylight; F. Verheyde det. (ObsID: 191893456); Fig. 27 .