Apanteles megathymi Riley, 1881:304, ♂♀. ♂♂♀♀, South Carolina; Fernández-Triana et al., 2014Fernández-Triana, J.L., J.B. Whitfield, J.J. Rodriguez, M.A. Smith, D.H. Janzen, W.D. Hallwachs, M. Hajibabaei, J.M. Burns, M.A. Solis, J. Brown, S. Cardinal, H. Goulet & P.D.N. Hebert 2014. Review of Apanteles sensu stricto (Hymenoptera, Braconidae, Microgastrinae) from Area de Conservación Guanacaste, northwestern Costa Rica, with keys to all described species from Mesoamerica. ZooKeys 383:1-565.:272, Cotypes 7 ♂♂, examined (NMNH); 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.:168, Syntypes ♂, examined (USNM). - 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); Coronado-Blanco, 2011Coronado-Blanco, J. M. 2011. Braconidae (Hymenoptera) de Tamaulipas, México. Universidad Autónoma de Tamaulipas, Tamaulipas, México. 1-204. (distribution); Fernández-Triana et al., 2014Fernández-Triana, J.L., J.B. Whitfield, J.J. Rodriguez, M.A. Smith, D.H. Janzen, W.D. Hallwachs, M. Hajibabaei, J.M. Burns, M.A. Solis, J. Brown, S. Cardinal, H. Goulet & P.D.N. Hebert 2014. Review of Apanteles sensu stricto (Hymenoptera, Braconidae, Microgastrinae) from Area de Conservación Guanacaste, northwestern Costa Rica, with keys to all described species from Mesoamerica. ZooKeys 383:1-565. (distribution); 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).