Lissonota semirufa (Desvignes, 1856)

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 : 32

Lissonota semirufa (Desvignes, 1856)

Should not be confused with L. semirufa Strobl, 1902 , which was synonymised with L. bivittata Gravenhorst, 1829 ; reported in Belgium only recently ( LIBERT, 2019a; see Table 1) and unreported in the Netherlands. Morphologically it is easily distinguished from related species.

Its head and thorax are black with yellow patches on their vertex and pronotum. All legs are reddish. Apically the metasoma is black, but the other segments are (dark) red with black patches. Additionally, the first flagellar segment is at least 5× its width and the second and third tergite are subquadrate to longer than broad (BROCK, 2017). This wasp is mainly active from May to July and can be found around (standing) dead wood. The habitat range seems to be somewhat wider than coniferous woodland only (as mentioned in BROCK, 2017). Our observations are situated on Betula and Fagus spp. in forest areas with smaller patches of moorland, suggesting the presence of an unknown host.

First report for Belgium and the Netherlands.

MATERIAL EXAMINED:

BELGIUM: • 1 ♀; Beernem , Bulskampveld – Heideveld-Bornebeek (WVL); 51°06’31”N 3°17’45”E; 6/v/2020; A. De Ketelaere leg.; coll. ADK; field observation on Fagus sylvatica ; A. De Ketelaere det. (ObsID: 191894869) .

THE NETHERLANDS: • 1 ♀; Heeze-Leende , Strabrechtste Heide (NB); 51°23’49”N 5°38’15”E; 3/v/2020; Telpost Strabrecht leg.; field observation; F. Verheyde det. (ObsID: 190332070) . • 1 ♀; Bloemendaal , Amsterdamse Waterleidingduinen (NH); 52°19’59”N 4°33’34”E; 12/vi/2020; J. Duivenvoorden leg.; field observation; F. Verheyde det. (ObsID: 194062394) .