Cremastus lineatus 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 : 49

Cremastus lineatus Gravenhorst, 1829

The ventral edges of the first sternite are curved in the middle in C. lineatus , which is unique in the genus. Furthermore, the second recurrent vein is interstitial (or antefurcal) and the first abdominal segment is nearly as long as the second ( KOLAROV, 1997). Our specimen was predominantly black with yellow markings on the temples and orbits.

First report for Belgium; unreported in the Netherlands. MATERIAL EXAMINED:

BELGIUM: • 1 ♀; Oostende , Standsrandbos (WVL); 51°12’19”N 2°56’41”E; 5/viii/2020; F. Verheyde, E. Devos & J. Devos leg.; coll. FV; field observation; F. Verheyde det. (ObsID: 197817164) .