Thyreodon texanus Ashmead, 1889:422, ♂. Holotype ♂, Texas; Hooker, 1912Hooker, C.W. 1912. The Ichneumon flies of America belonging to the tribe Ophionini. Transactions of the American Entomological Society 38 (1):1-176.:156, Type ♀ (U. S. National Museum, No. 2053); Gauld, 1988Gauld, I.D. 1988. A survey of the Ophioninae (Hymenoptera: Ichneumonidae) of tropical Mesoamerica with special reference to the fauna of Costa Rica. Bulletin of the British Museum (Natural History) 57 (1):1-309.:151, Holotype ♂, examined (U.S. National Museum of Natural History, Washington D.C., U.S.A.). - 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). - As Enicospilus texanus: - 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); Gauld, 1988Gauld, I.D. 1988. A survey of the Ophioninae (Hymenoptera: Ichneumonidae) of tropical Mesoamerica with special reference to the fauna of Costa Rica. Bulletin of the British Museum (Natural History) 57 (1):1-309. (distribution); Ruíz-Cancino et al., 2002Ruíz-Cancino, E., D.R. Kasparyan & J.M. Coronado Blanco 2002. Ichneumonidae. In: Llorente Bousquets, J. & J.J. Morrone (Ed.). Biodiversidad, taxonomía y biogeografía de artrópodos de México: Hacia una síntesis de su conocimiento, volumen III. 631-646. (distribution). - As Eremotylus texanus: - Hooker, 1912Hooker, C.W. 1912. The Ichneumon flies of America belonging to the tribe Ophionini. Transactions of the American Entomological Society 38 (1):1-176. (distribution).