Western Palaearctic Oedicephalini and Phaeogenini (Hymenoptera: Ichneumonidae, Ichneumoninae) in the National Museums of Scotland, with distributional data including 28 species new to Britain, rearing records, and descriptions of two new species of Aethecerus Wesmael and one of Diadromus Wesmael

Abstract

• An account is given of approximately 3,250 western Palaearctic specimens, comprising 110 determined species, of the tribes Oedicephalini and Phaeogenini in the National Museums of Scotland. Distributional and phenological data are given for all species, and rearing records are provided for about 50, although not always with the host’s identity fully clear. Twenty eight species are newly recorded from Britain, of which Aethecerus horstmanni sp. nov., Aethecerus ruberpedatus sp. nov. and Diadromus nitidigaster sp. nov. are described and figured. Tycherus histrio (Wesmael, 1848) sp. rev. is raised from synonymy with Tycherus ischiomelinus (Gravenhorst, 1829); Dicaelotus schmiedeknechti nom. nov. is provided for Dicaelotus ruficornis (Schmiedeknecht, 1903) nec (Ashmead, 1890); Aethecerus subuliferus (Holmgren, 1890) is proposed as a comb. nov.; and Phaeogenes nigridens Wesmael, 1848, is proposed as a comb. rev.