Exetastes flavipennis Cresson, 1865:275, ♀. 5 ♀♀, Colorado Territory, 1864 (leg. Mr. James Ridings); Cushman, 1937Cushman, R.A. 1937. Revision of the North American species of Ichneumon-flies of the genus Exetastes Gravenhorst. Proceedings of the United States National Museum 84 (3017):243-312, 6 pl.:305, Type (U.S.N.M., no. 44732). - 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); Cushman, 1937Cushman, R.A. 1937. Revision of the North American species of Ichneumon-flies of the genus Exetastes Gravenhorst. Proceedings of the United States National Museum 84 (3017):243-312, 6 pl. (distribution); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198. (distribution). - As Exetastes fornicator flavipennis: - Khalaim & Ruiz-Cancino, 2012Khalaim, A.I. & Ruiz-Cancino, E. 2012. Mexican species of Exetastes (Hymenoptera: Ichneumonidae: Banchinae), with description of three new species. Revista Mexicana de Biodiversidad 83:370-379. (distribution); Ruíz-Cancino et al., 2012Ruíz-Cancino, E., J.M. Coronado-Blanco, A.I. Khalaim, D.R. Kasparyan, A.M. Corona López & E.T. Sánchez 2012. Ichneumonidae (Hym.) de algunos estados del centro de México. Entomología mexicana 11 (2):1039-1044. (distribution).
Exetastes anthracinus Cushman, 1937:305, ♂♀. Holotype ♀, Nantucket, Mass., July 16, 1926 (U.S.N.M., no. 51827, leg. C.W. Johnson). - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198.:577 ( listed as synonym of Exetastes flavipennis Cresson, 1865).
Exetastes geminus Cushman, 1937:306, ♀. Holotype ♀, Swannanoa, N. C., September 23, 1924 (U.S.N.M., no. 51828, leg. T.B. Mitchell). - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198.:577 ( listed as synonym of Exetastes flavipennis Cresson, 1865).