Cremastus pungens (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 : 50

Cremastus pungens (Gravenhorst, 1829) (Fig. 19A–B)

Cremastus pungens then, is a smaller species (measuring approx. 5.5 to 6 mm). The first abdominal segment is nearly as long as the second, the abovementioned (shiny) ventral edges or margins are running parallel (Fig. 19B), the areola of the propodeum is longer than its width (but not four times its width), the hind tibiae are not swollen, the prepectal carina is not raised in the middle, the face has yellowish orbits, the middle tibiae are red brownish to yellow, the clypeus is moderately convex and the scutellum is black ( KOLAROV, 1997; see Fig. 19 A). No hosts are known. Our findings date from June to July on small patches of (somewhat stony) dry grassland and moorland. From the European ENDURE project, the first author is aware of species caught on marram grass in coastal dunes from the UK. This suggests C. pungens could be thermophilic (just like its yet unknown hosts) and will thus be more common in the future.

First report for Belgium; confirmed in the Netherlands.

MATERIAL EXAMINED:

BELGIUM: • 1 ♀; Beernem , Bossen Lindeveld (WVL); 51°06’22”N 3°19’12”E; 1/vi/2020; F. Verheyde & A. De Ketelaere leg.; coll. ADK; field observation; A. De Ketelaere det. (ObsID: 193023764) . • 1 ♀; Antwerpen , Galgenweel (AN); 51°13’04”N 4°21’51”E; 15/vi/2020; F. Verheyde & A. De Ketelaere leg.; coll. ADK; field observation; A. De Ketelaere det. (ObsID: 194210292); Fig. 19A–B .

THE NETHERLANDS: • 1 ♀; America, Het Meerdal (LIN) ; 51°27’09”N 5°58’08”E; 8/vii/2020; P. Hoekstra leg.; coll . PH; field observation; P. Hoekstra det. (ObsID: 203290115) .