Apanteles cassianus Riley, 1881:307, ♂♀. 12 ♂♂♀♀, East St. Louis, Ill.; Muesebeck, 1921Muesebeck, C.F.W. 1921. A revision of the North American species of Ichneumon-flies belonging to the genus Apanteles. Proceedings of the United States National Museum 58:483-576.:531, Type series (National Collection); Fernández et al., 2020Fernández-Triana, J.L., M.R. Shaw, C. Boudreault, M. Beaudin & G.R. Broad 2020. Annotated and illustrated world checklist of Microgastrinae parasitoid wasps (Hymenoptera, Braconidae). ZooKeys 920:1-1089.:579, Syntypes ♀ and ♂, examined (USNM). - Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. - IV: Braconidae. Sumptibus Guilelmi Engelmann, VIII + 323. (distribution); Muesebeck, 1921Muesebeck, C.F.W. 1921. A revision of the North American species of Ichneumon-flies belonging to the genus Apanteles. Proceedings of the United States National Museum 58:483-576. (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 Glyptapanteles cassianus: - Fernández et al., 2020Fernández-Triana, J.L., M.R. Shaw, C. Boudreault, M. Beaudin & G.R. Broad 2020. Annotated and illustrated world checklist of Microgastrinae parasitoid wasps (Hymenoptera, Braconidae). ZooKeys 920:1-1089. (distribution).