Trogus austrinus Cresson, 1868:92, ♂♀. 1 ♀, Florida (leg. Norton); 1 ♂, Georgia (leg. Ridings); Heinrich, 1962Heinrich, G.H. 1962. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part VII. Synopsis of the Trogini. Addenda and corrigenda. The Canadian Entomologist 93 (Supplement 29):803-886.:839, Holotype ♀ (A.N.S.); Heinrich, 1977Heinrich, G.H. 1977. Ichneumoninae of Florida and neighboring states (Hymenoptera: Ichneumonidae, subfamily Ichneumoninae). Arthropods of Florida and neighboring land areas 9:1-350.:286, Holotype ♀ (ANS). - Cresson, 1868Cresson, E.T. 1868. A list of Ichneumonidae of North America, with descriptions of new species. Part II. Transactions of the American Entomological Society 2:89-114. (distribution); 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); Morley, 1915Morley, C. 1915. A revision of the Ichneumonidae based on the collection in the British Museum (Natural History) with descriptions of new genera and species. Part IV: Tribes Joppides, Banchides and Alomyides. British Museum, London, England. 1-167. (distribution). - As Gnamptopelta austrina: - Hopper, 1939Hopper, H.P. 1939. A synoptical revision of the tribe Trogini Ashmead of the United States and Canada (Hymenoptera: Ichneumonidae). Transactions of the American Entomological Society 65 (4):307-346. (distribution). - As Gnamptopelta obsidianator austrina: - Heinrich, 1962Heinrich, G.H. 1962. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part VII. Synopsis of the Trogini. Addenda and corrigenda. The Canadian Entomologist 93 (Supplement 29):803-886. (distribution); Heinrich, 1977Heinrich, G.H. 1977. Ichneumoninae of Florida and neighboring states (Hymenoptera: Ichneumonidae, subfamily Ichneumoninae). Arthropods of Florida and neighboring land areas 9:1-350. (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).