Revision of the Swedish species of Odontocolon Cushman, 1942 (Hymenoptera; Ichneumonidae; Xoridinae) with the description of a new species and an illustrated key to species

Abstract

The Swedish species of Odontocolon Cushman, 1942, are revised and a new species, Odontocolon styx sp. nov. is described from Swedish material. Odontocolon thomsoni (Clément, 1938) syn. nov. is synonymized with Odontocolon appendiculatum (Gravenhorst, 1829). Odontocolon cretense (Szépligeti, 1914) stat rev. is excluded from synonymy with Odontocolon appendiculatum (Gravenhorst, 1829) and reinstated as a valid species. Odontocolon geniculatum (Kriechbaumer, 1889) is deleted from the Swedish species list. An illustrated key to the Odontocolon species occurring in Northern Europe is provided. A discussion on the potential role of Odontocolon-species as indicators of biologically rich forests and ecologically sustainable forestry is given.