Sphex Speciosus Drury, 1773:71, pl. 38, fig. 1 (Dr. Fothergill). - As Sphecius speciosus: - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:91 (listed); Handlirsch, 1889Handlirsch, A. 1889. Monographie der mit Nysson und Bembex verwandten Grabwespen. IV. Sitzber. Akad. Wiss. Wien Abt. 1 98:440-517. (distribution); Cameron, 1890Cameron, P. 1890. Biologia Centrali-Americana. Insecta. Hymenoptera. (Fossores) Vol. II. :65-129. (distribution); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution); Krombein, 1963Krombein, K.V. 1963. Natural history of Plummers Island, Maryland. XVII. Annotated list of the wasps (Hymenoptera: Bethyloidea, Scolioidea, Vespoidea, Pompiloidea, Sphecoidea). Proceedings of the Biological Society of Washington 76:255-280. (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); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139. (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); Holliday & Coelho, 2006Holliday, C.W. & J.R. Coelho 2006. Improved key to New World species of Sphecius (Hymenoptera: Crabronidae). Annals of the Entomological Society of America 99 (5):793-798. (distribution); Horta Vega et al., 2007Horta Vega, J.V., O.N. Pinson Domínguez, L. Barrientos Lozano & A. Correa Sandoval 2007. Sphecidae y Crabronidae (Hymenoptera) de algunos municipios del centro y sur de Tamaulipas, México. Acta Zool. Mex. (n.s.) 23:35-48. (distribution); Nava-Bolaños & Osorio-Olvera, 2022Nava-Bolaños, A. & L. Osorio-Olvera 2022. Estado del arte del conocimiento de biodiversidad de los polinizadores de México. Revista Mexicana de Biodiversidad 93:1-77. (distribution). - As Stizus speciosus: - Cresson, 1872Cresson, E.T. 1872. Hymenoptera Texana. Transactions of the American Entomological Society 4:153-292. (distribution).
Vespa tricincta Fabricius, 1775:363, sex not indicated.America (Mus. Bankianum). - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:91 ( listed as synonym of Sphecius speciosus (Drury, 1773)); Handlirsch, 1889Handlirsch, A. 1889. Monographie der mit Nysson und Bembex verwandten Grabwespen. IV. Sitzber. Akad. Wiss. Wien Abt. 1 98:440-517.:458 ( listed as synonym of Sphecius speciosus (Drury, 1773)); 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.:1698 ( listed as synonym of Sphecius speciosus (Drury, 1773)); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139.:18 ( listed as synonym of Sphecius speciosus (Drury, 1773)).
Stizus vespiformis Latreille, 1818:pt. 24, pl. 382, fig. 6 - Handlirsch, 1889Handlirsch, A. 1889. Monographie der mit Nysson und Bembex verwandten Grabwespen. IV. Sitzber. Akad. Wiss. Wien Abt. 1 98:440-517.:458 ( listed as synonym of Sphecius speciosus (Drury, 1773)); 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.:1698 ( listed as synonym of Sphecius speciosus (Drury, 1773)); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139.:18 ( listed as synonym of Sphecius speciosus (Drury, 1773)).