Cylloceria sylvestris (Gravenhorst, 1829)

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 : 70-71

Cylloceria sylvestris (Gravenhorst, 1829)

Cylloceria sylvestris is harder to identify and can be distinguished from C. melancholica (Gravenhorst, 1820) by the former having a longer ovipositor (0.8–1.1× length of the fore wing [own measurements based on our specimens]) and the nervellus not being broken above the middle ( HUMALA, 2002). It seems to be genuinely uncommon, with the species being more abundant in Northern and Eastern Europe.

First report for the Netherlands; unreported in Belgium.

MATERIAL EXAMINED:

THE NETHERLANDS: • 3 ♀♀; Twijzel (FR); 53°14’53”N 6°04’56”E; 28/v/2012; Landschapsbeheer Friesland leg.; coll. HM; malaise trap 215 (24-28); H. Meijer det.