Bathythrix collaris (Thomson, 1889)

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 : 88-89

Bathythrix collaris (Thomson, 1889)

Bathythrix collaris is harder to recognise. Its mesosoma, first tergite and the apical tergites are black. Its metasoma is mainly orange with black spots on the second tergite. Its nervellus is intercepted below the middle and the areolet is open. The ovipositor is slightly shorter than the hind tibia and the temples are narrowed behind the eyes. Its propodeum is almost completely smooth. Our specimens had 25 flagellomeres and measured approximately 5.5 mm. It is a known parasitoid of Pristiphora abietina (Christ, 1791) (Symphyta: Tenthredinidae ) ( SAWONIEWICZ, 1980). First report for Belgium; unreported in the Netherlands.

MATERIAL EXAMINED:

BELGIUM: • 2 ♀♀; Stokkel (BR); 17/vi/1932; A. Crèvecoeur leg. ; coll. KBIN/RBINS (coll. Crèvecoeur); F. Verheyde det.