Lethades laricis Hinz, 1976

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 : 68

Lethades laricis Hinz, 1976 (Fig. 34 A–B)

Lethades spp. belong to the smaller tribe Pionini , ctenopelmatine wasps without thyridium and with the presence of pectinate tarsal claws. The genus is well revised.

L. laricis has a complete areolet. Its appearance is striking with a completely black metasoma but broad reddish-yellow bands on posterior margins (Fig. 34 A). The male has many yellow markings, on pronotum, mesonotum and mesopleuron. Its face is also yellow ( RESHCHIKOV et al., 2017; see Fig. 34 B). Our specimens did not have a yellow apical band on the second and third tergite (but otherwise matched well), suggesting local variation or the existence of an undescribed species. Supposed hosts are the uncommon sawflies Pachynematus scutellatus (Hartig, 1837) and Pristiphora laricis (Hartig, 1837) (Symphyta: Tenthredinidae ) (HINZ, 1976).

First report for Belgium; unreported in the Netherlands.

MATERIAL EXAMINED:

BELGIUM: • 1 ♂; Beernem , Gevaerts (WVL); 51°08’29”N 3°18’52”E; 10/iv/2020; A. De Ketelaere leg.; coll. ADK; A. De Ketelaere det. (ObsID: 203717256) . • 2 ♂♂; Beernem , Bossen Lindeveld (WVL); 51°06’20”N 3°19’14”E; 22/iv/2020; A. De Ketelaere leg.; coll. ADK; A. De Ketelaere det. (ObsID: 203718886); Fig. 34 A–B .