Gorytes placidus Smith, 1856:368, ♂♀. ♂, ♀, East Florida (F. Smith). - Cresson, 1862Cresson, E.T. 1862. Catalogue of the described species of North American Hymenoptera (Continued from page 211.). Proceedings of the Entomological Society of Philadelphia 1 (8):227-238. (distribution); Packard, 1867Packard, A.S. 1867. Revision of the fossorial Hymenoptera of North America. I. Crabronidae and Nyssonidae. Proceedings of the Entomological Society of Philadelphia 6:353-453. (distribution); Handlirsch, 1888Handlirsch, A. 1888. Monographie der mit Nysson und Bembex verwandten Grabwespen III. Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Classe 97:316-565. (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). - As Hoplisoides placidus placidus: - 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).
Gorytes rufipes Smith, 1856:369, ♀. ♀, East Florida (St. John's Bluff) (E. Doubleday, Esq.). - Cresson, 1862Cresson, E.T. 1862. Catalogue of the described species of North American Hymenoptera (Continued from page 211.). Proceedings of the Entomological Society of Philadelphia 1 (8):227-238. (distribution); Packard, 1867Packard, A.S. 1867. Revision of the fossorial Hymenoptera of North America. I. Crabronidae and Nyssonidae. Proceedings of the Entomological Society of Philadelphia 6:353-453. (distribution); Handlirsch, 1888Handlirsch, A. 1888. Monographie der mit Nysson und Bembex verwandten Grabwespen III. Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Classe 97:316-565.:530 ( listed as synonym of Gorytes placidus Smith, 1856).