Adelognathus nigriceps Thomson, 1888

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 : 25-26

Adelognathus nigriceps Thomson, 1888

Adelognathus spp. are interesting parasitoids. They are seldom caught in the field and are ectoparasitoids of sawfly larvae. They can be recognised by their exposed labrum and fairly short antennae (approx. 14 to 15 segments) and the presence of a pentagonal areolet in some species (BROAD et al., 2018).

A. nigriceps is a smaller species of more or less 3 mm. Occipital carina reaches the mandibular base. The face is yellow and there is a unique groove between the mandibles and eye ( KASPARYAN, 1990). First report for the Netherlands; unreported for Belgium.

MATERIAL EXAMINED:

THE NETHERLANDS: • 1 ♂; Eastermar (FR); 53°10’40”N 6°05’13”E; 6/v/2012; G.; Tuinstra leg.; coll. HM; field observation; H. Meijer det.