Exetastes propinquus Cresson MS - 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.:267 ( listed as synonym of Exetastes propinquus Cushman, 1937).
Exetastes scutellaris Howard, 1903:pl. 9, fig. 17 - 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.:267 ( listed as synonym of Exetastes propinquus Cushman, 1937).
Exetastes propinquus Viereck, 1910:618 Nomen nudum. Nomen nudum.Exetastes propinquus Viereck, 1910:618 Nomen nudum. Nomen nudum.
Exetastes propinquus Cushman, 1937:267, ♂♀. Holotype, Washington, D. C. (U.S.N.M., no. 51802, leg. C.N. Ainslie). - 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).