Eumenes americana Saussure, 1852:39, ♀.Le Mexique (M. Westwood); Bohart & Menke, 1974Bohart, R.M. & A.S. Menke 1974. Names of some North American vespoid wasps (Hymenoptera: Vespidae and Eumenidae). Journal of the Kansas Entomological Society 47 (4):459-469.:461, Holotype ♀ (presumably in Westwood collection, Oxford); Grandinete et al., 2018Grandinete, Y.C., F.B. Noll & J. Carpenter 2018. Taxonomic review of Eumenes Latreille, 1802 (Hymenoptera, Vespidae, Eumeninae) from the New World. Zootaxa 4459:1-52.:6, Holotype ♀ (OUMNH). - Smith, 1857Smith, F. 1857. Catalogue of Hymenopterous Insects in the Collection of the British Museum. Part V. Vespidae. London. 147 pp. (distribution); Dalla Torre, 1894Dalla Torre, C.G. 1894. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, IX. Vespidae (Diploptera). Guilelmi Engelmann, 181. (distribution). - As Eumenes americanus: - Zavattari, 1912Zavattari, E. 1912. Materialien für eine Monographie der Neotropischen Eumeniden. Archiv für Naturgeschichte 78:1-272. (distribution); West-Eberhard et al., 1995West-Eberhard, M.J., J.M. Carpenter & P.E. Hanson 1995. The vespid wasps (Vespidae). In: Hanson, P.E. & I.D. Gauld (Ed.). The Hymenoptera of Costa Rica. 561-587. (distribution); Carpenter et al., 2012Carpenter, J.M., B.R. Garcete-Barrett & Y.J.A.F. López 2012. Las Vespidae (Hymenoptera: Vespoidea) de Guatemala. In: Cano, E.B. & J.C. Schuster (Ed.). Biodiversidad de Guatemala. Volumen 2. 269-279. (distribution); Grandinete et al., 2018Grandinete, Y.C., F.B. Noll & J. Carpenter 2018. Taxonomic review of Eumenes Latreille, 1802 (Hymenoptera, Vespidae, Eumeninae) from the New World. Zootaxa 4459:1-52. (distribution). - As Eumenes smithii americanus: - 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 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution); Ruíz-Cancino & Coronado-Blanco, 2002Ruíz-Cancino, E. & J.M. Coronado-Blanco 2002. Artrópodos terrestres de los estados de Tamaulipas y Nuevo León, México. Serie Publicaciones Cientificas No. 4:1-376. (distribution); Ruíz-Cancino et al., 2005Ruíz-Cancino, E., J.M. Coronado-Blanco & J.V. Horta Vega 2005. Conocimiento actual de las avispas depredadoras (Hymenoptera) en Tamaulipas, México. In: Lozano, L. B., A.C. Sandoval, J.V.H. Vega & J.G. Jiménez (Ed.). Biodiversidad tamaulipeca: vol. 1. 164-170. (distribution).
Eumenes brunneus Isely, 1917:348, Bohart & Menke, 1974Bohart, R.M. & A.S. Menke 1974. Names of some North American vespoid wasps (Hymenoptera: Vespidae and Eumenidae). Journal of the Kansas Entomological Society 47 (4):459-469.:461, Holotype ♂ (USNM). Synonymized with Eumenes smithii americanus Saussure, 1852 by Bohart & Menke, 1974Bohart, R.M. & A.S. Menke 1974. Names of some North American vespoid wasps (Hymenoptera: Vespidae and Eumenidae). Journal of the Kansas Entomological Society 47 (4):459-469.:461. - 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 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:1508 ( listed as synonym of Eumenes smithii americanus Saussure, 1852).
Eumenes belfragei aureus Isely, 1917:347 (key), 352, Bohart, 1948Bohart, R.M. 1948. Contributions toward a knowledge of the insect fauna of Lower California. No. 9, Hymenoptera: Eumenidae. Proceedings of the California Academy of Sciences ser. 4: v. 24 (9):313-336.:315, Type (U.S.N.M.); Grandinete et al., 2018Grandinete, Y.C., F.B. Noll & J. Carpenter 2018. Taxonomic review of Eumenes Latreille, 1802 (Hymenoptera, Vespidae, Eumeninae) from the New World. Zootaxa 4459:1-52.:6, Holotype ♀ (USNM, n° 21378). Synonymized with Eumenes americanus Saussure, 1852 by Grandinete et al., 2018Grandinete, Y.C., F.B. Noll & J. Carpenter 2018. Taxonomic review of Eumenes Latreille, 1802 (Hymenoptera, Vespidae, Eumeninae) from the New World. Zootaxa 4459:1-52.:6. - As Eumenes aureus: - Bohart, 1948Bohart, R.M. 1948. Contributions toward a knowledge of the insect fauna of Lower California. No. 9, Hymenoptera: Eumenidae. Proceedings of the California Academy of Sciences ser. 4: v. 24 (9):313-336. (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 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution).