Tersilochus lapponicus Hellen, 1958

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 : 121

Tersilochus lapponicus Hellen, 1958

The group around T. lapponicus has a weakly expressed or short sternaulus. The ovipositor tip is deeply incised subapically and the claws are pectinate. T. lapponicus is a predominantly black species. Its thyridia are longer than wide and the ovipositor sheaths are twice as long as the first tergite (HORSTMANN, 1971). First report for the Netherlands; unreported in Belgium.

MATERIAL EXAMINED:

THE NETHERLANDS: • 1 ♀; Twijzelerheide (FR); 53°14’53”N 6°04’56”E; 5/iv/2012; Landschapsbeheer Friesland [G. Tuinstra] leg.; coll. HM; field observation; H. Meijer det. • 1 ♀; Haarzuilen (UT); 52°07’25”N 5°00’02”E; 10/iv/2020; S. De Waart leg.; coll. FV; malaise trap; F. Verheyde det. (ObsID: 208390971).