Apsilops aquaticus (Thomson, 1874)

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 : 55

publication ID	https://doi.org/ 10.5281/zenodo.13272081
persistent identifier	https://treatment.plazi.org/id/03D33240-8629-CF3A-FF69-88F96F25F8A6
treatment provided by	Felipe
scientific name	Apsilops aquaticus (Thomson, 1874)
status

Treatment

Apsilops aquaticus (Thomson, 1874) View in CoL

Next to ‘soft’ characteristics such as colour, Apsilops spp. can be distinguished from related genera by the area superomedia (entirely delimited by carinae), the head and thorax which are densely hairy and the first abdominal segment and the propodeum that are coloured black.

A. aquaticus View in CoL can be distinguished from the more common A. cinctorius View in CoL by analysing the shape of the area superomedia, which is longer than wide in the latter species. The females of A. aquaticus View in CoL have brownish antennae basally (red in A. cinctorius View in CoL ), while the males have a white scutellum and black hind coxae (red in A. cinctorius View in CoL ) ( SCHWARZ, 1989; SCHWARZ [2013], draft key). More striking than morphological features is the ecology. Apsilops spp. parasitize aquatic or semi-aquatic moths of the lepidopteran families Crambidae View in CoL and Noctuidae ( YOSHIDA et al., 2011) View in CoL . Therefore, they are often spotted on floating vegetation in ponds or ditches close to urban areas. First report for the Netherlands; unreported in Belgium.

MATERIAL EXAMINED:

THE NETHERLANDS: • 1 ♀; Ureterp , Terrein de Fûgelhelling (FR); 53°06’16”N 6°08’24”E; 20/ix/2015; H. Meijer leg.; coll. HM; field observation; H. Meijer det. GoogleMaps