Ichneumon versabilis Cresson, 1877:161, ♂. Heinrich, 1961Heinrich, G.H. 1961. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part III. Synopsis of the Ichneumoni: Genera Ichneumon and Thyrateles. The Canadian Entomologist 93 (Supplement 21):207-368.:281, Holotype ♂ (A.N.S.). - Cresson, 1877Cresson, E.T. 1877. Notes on the species belonging to the subfamily Ichneumonides, found in America north of Mexico. Transactions of the American Entomological Society 6:129-212. (distribution); Dalla Torre, 1901-1902Dalla Torre, C.G. 1901-1902. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. — Volumen III: Trigonalidae, Megalyridae, Stephanidae, Ichneumonidae, Agriotypidae, Evaniidae, Pelecinidae. Pars II. Breitkopf & Härtel, Leipzig. VIII + 1141. (distribution).
Amblyteles brittoni Viereck, 1917:347, Heinrich, 1961Heinrich, G.H. 1961. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part III. Synopsis of the Ichneumoni: Genera Ichneumon and Thyrateles. The Canadian Entomologist 93 (Supplement 21):207-368.:281, Holotype ♀ (Connecticut Agricultural Experiment Station, New Haven). - Heinrich, 1961Heinrich, G.H. 1961. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part III. Synopsis of the Ichneumoni: Genera Ichneumon and Thyrateles. The Canadian Entomologist 93 (Supplement 21):207-368.:281 ( listed as synonym of Ichneumon versabilis Cresson, 1877).