Microdus terminatus Cresson, 1865:298, ♂. Holotype ♂, Colorado Territory, 1864 (leg. Mr. James Ridings); Muesebeck, 1927Muesebeck, C.F.W. 1927. A revision of the parasitic wasps of the subfamily Braconinae occuring in America north of Mexico. Proceedings of the United States National Museum 69 (art. 16):1-73.:54, Type (Philadelphia Academy of Science). - As Agathis terminata: - 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 Bassus terminatus: - Muesebeck, 1927Muesebeck, C.F.W. 1927. A revision of the parasitic wasps of the subfamily Braconinae occuring in America north of Mexico. Proceedings of the United States National Museum 69 (art. 16):1-73. (distribution).
Orgilus terminalis Ashmead, 1888:640, ♂. Holotype ♂, Colorado (U. S. National Museum); Muesebeck, 1927Muesebeck, C.F.W. 1927. A revision of the parasitic wasps of the subfamily Braconinae occuring in America north of Mexico. Proceedings of the United States National Museum 69 (art. 16):1-73.:54, Type (United States National Museum). - Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. - IV: Braconidae. Sumptibus Guilelmi Engelmann, VIII + 323. (distribution); Muesebeck, 1927Muesebeck, C.F.W. 1927. A revision of the parasitic wasps of the subfamily Braconinae occuring in America north of Mexico. Proceedings of the United States National Museum 69 (art. 16):1-73.:54 ( listed as synonym of Bassus terminatus (Cresson, 1865)); 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.:195 ( listed as synonym of Agathis terminata (Cresson, 1865)); Sharkey, 2004Sharkey, M.J. 2004. Synopsis of the Agathidinae (Hymenoptera: Braconidae) of America north of Mexico. Proceedings of the Russian Entomological Society. St. Petersburg 75 (1):134-152.:148 ( listed as synonym of Bassus terminatus (Cresson, 1865)).