A large narrow male Ichneumonid wasp Ichneumon xanthorius [1,2,3,4] ( det. Fons Verheyde ). One of the black-yellow species that visited the garden for the first time this year. The wasp seemed to be always on patrol, with a small brakes every now and then.


Literature
1 Nederlands Soortenregister2 Broad, G., 2011. Identification key to the subfamilies of Ichneumonidae (Hymenoptera). Biological Record Centre, Wallinford.
3 Perkins, J. F., 1959. Hymenoptera, Ichneumonoidea, Ichneumonidae: Key to Subfamilies and Ichneumoninae-I. Royal Entomological Society.
4 Perkins, J. F., 1960. Hymenoptera, Ichneumonoidea: Ichneumonidae I.[and] Ichneumoninae II, Alomyinae, Agriotypinae and Lycorininae. Royal Entomological Society.