Tranosema hyperboreum (Holmgren, 1860)

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 : 48

Tranosema hyperboreum (Holmgren, 1860)

Tranosema spp. can be recognised by the presence of the glymmae on the first tergite and the presence of a closed areolet. Their nervellus is broken. The sternite of the first tergite does not reach the stigma. The posterior mesosternal carina is complete and the thyridium is less than its own length from the base of the second tergite ( TOWNES, 1970b).

Tranosema hyperboreum [hyperborea in HORSTMANN, 1977] has deep glymmae, the hind tibiae are red brown, its speculum is shiny, the tegulae are black and the length of the femora is 4.5– 5× its width (HORSTMANN, 1977). Only one rare host is known: Eana incanana (Stephens, 1852) ( Lepidoptera : Tortricidae ) ( SHAW et al., 2016).

First report for the Netherlands; unreported in Belgium.

MATERIAL EXAMINED:

THE NETHERLANDS: • 1 ♀; 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.