Cylloceria caligata (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

Cylloceria caligata (Gravenhorst, 1829) (Fig. 35 A–B)

Cylloceria caligata can be very easily recognised. In the Low Countries it is the only species in the genus with all the coxae red ( HUMALA, 2002; see Fig. 35 A). Its hosts are crane flies ( Diptera : Tipulidae ). There are some records on sawflies and lepidopterans (see YU et al., 2012), but these are doubtful (BROAD et al., 2018). In Belgium more than fifty specimens were caught, particularly with pitfall and yellow pan traps in the moorlands near Bruges. Remarkably, checking one of the historical collections, another specimen was discovered from the same locality (but approximately 75 years older). This provides a glimpse of how local populations can be, and how they are able to survive over a long period of time.

First report for Belgium; confirmed in the Netherlands.

MATERIAL EXAMINED:

BELGIUM: • 1 ♀; Sint-Andries (WVL); 14/viii/1940; A. Crèvecoeur leg.; coll. KBIN/RBINS (coll. Crèvecoeur); F. Verheyde det. • 6 ♀♀ 46 ♂♂; Sint-Andries, Beisbroek & Chartreuzinnenheide (WVL); IX.2014 – XI.2016; W. Dekoninck et al. (KBIN) leg.; coll. KBIN/RBINS (project Bruges heathlands); yellow pan trap & pitfall trap; F. Verheyde det.; Fig. 35 A–B.

THE NETHERLANDS: • 1 ♀; Assen (DR); 52°58’41”N 6°33’35”E; 8/viii/2019; J. Visser leg.; field observation; F. Verheyde det. (ObsID: 177682302) . • 1 ♀; Heeze , Strabrechtste Heide (NB); 51°23’51”N 5°35’17”E; 30/ix/2019; A. Van Dijk leg.; field observation; F. Verheyde det. (ObsID: 200888241) .