Two hundred and five ichneumonid wasps reported for the first time in Belgium and the Netherlands (Hymenoptera: Ichneumonidae) Author Verheyde, Fons Aartshertoginnestraat 58 / 01, B- 8400 Ostend, Belgium. E-mail fonsverheyde @ hotmail. com (Corresponding fonsverheyde@hotmail.com(Corresponding Author Hoekstra, Paul Author Libert, Pierre-Nicolas ULiège, Gembloux Agro-Bio Tech, Unité d’Entomologie fonctionnelle et évolutive. Passage des Déportés 2 cr, Author Meijer, Hilco Boekweitkamp 15, 9203 HE Drachten, the Netherlands. Author Ketelaere, Augustijn De Noendreef 7, B- 8730 Beernem, Belgium. Author Vandaudenard, Thibaud Rue Joseph Joppart 5, B- 1300 Wavre, Belgium. Author Belgers, Dick Nassauweg 6, 6703 CH, Wageningen, the Netherlands. Author Brosens, Edwin Lange Hei 9, 4714 RE, Sprundel, the Netherlands. text Belgian Journal of Entomology 1880 122 1 142 journal article 10.5281/zenodo.13272081 2295-0214 13272081 Aneuclis brevicauda (Thomson, 1889) Aneuclis spp. belongs to the group clustered around the genus Diaparsis . Both genera do not have glymmae on the first tergite (or it is isolated) and the propodeum has one basal keel. Typical for Aneuclis spp. , however, is the brachial cell of the fore wing which is widely open at apex and the posterior part of the postnervulus which is absent. The fore wing vein 2m-cu is present ( KHALAIM & YURTCAN , 2011 ). A. brevicauda is a small species. Our specimen measured 2.5 mm and had 14 flagellomeres. Its ovipositor is relatively short, about as long as the first tergite (which has striations dorsolaterally). Its mesosoma and metasoma are black ( KHALAIM , 2004a ). It has been reported as a parasitoid of the common coleopteran Phyllotreta nemorum (Linnaeus, 1758) ( Coleoptera : Chrysomelidae ) ( HORSTMANN , 1980b). First report for Belgium ; unreported in the Netherlands . MATERIAL EXAMINED : BELGIUM : • 1 ♀ ; Ukkel (BR); 6/viii/1933 ; A. Crèvecoeur leg. ; coll. KBIN/RBINS (coll. Crèvecoeur); F. Verheyde det.