Sphex labrosa Harris, 1835:588 Nomen nudum. - 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.:1585 ( listed as synonym of Prionyx atratus (Lepeletier, 1845)).
Sphex atrata Lepeletier, 1845:355, ♀. ♀, Sans patrie (Musée de M. Serville). - As Chlorion atratum: - Fernald, 1906Fernald, H.T. 1906. The digger wasps of North America and the West Indies belonging to the subfamily Chorioninae. Proceedings of the United States National Museum 31:291-423. (distribution). - As Prionyx atrata: - Cresson, 1872Cresson, E.T. 1872. Hymenoptera Texana. Transactions of the American Entomological Society 4:153-292. (distribution); Cockerell, 1898Cockerell, T.D.A. 1898. Contributions to the entomology of New Mexico. Proc. Davenport Acad. nat. Sci. 7:139-148. (distribution). - As Prionyx atratus: - 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). - As Sphex atratus: - Kohl, 1890Kohl, F.F. 1890. Die Hymenopterengruppe der Sphecinen. I. Monographie der natürlichen Gattung Sphex Linné (sens. lat.). Annalen des Naturhistorischen Museums in Wien 5:77-194, 317-462. (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).
Prionyx brunnipes Cresson, 1872:213, ♂. Holotype ♂, Texas, August (G.W. Belfrage); Fernald, 1906Fernald, H.T. 1906. The digger wasps of North America and the West Indies belonging to the subfamily Chorioninae. Proceedings of the United States National Museum 31:291-423.:338, Type (U. S. National Museum in Washington, No. 1691). - As Priononyx brunnipes: - Fernald, 1906Fernald, H.T. 1906. The digger wasps of North America and the West Indies belonging to the subfamily Chorioninae. Proceedings of the United States National Museum 31:291-423.:338 ( listed as synonym of Chlorion atratum (Lepeletier, 1845)); 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.:1585 ( listed as synonym of Prionyx atratus (Lepeletier, 1845)). - As Sphex bruneipes: - 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 Sphex bruneipes: - 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 Sphex brunipes: - Kohl, 1890Kohl, F.F. 1890. Die Hymenopterengruppe der Sphecinen. I. Monographie der natürlichen Gattung Sphex Linné (sens. lat.). Annalen des Naturhistorischen Museums in Wien 5:77-194, 317-462. (distribution). - As Sphex brunipes: - Kohl, 1890Kohl, F.F. 1890. Die Hymenopterengruppe der Sphecinen. I. Monographie der natürlichen Gattung Sphex Linné (sens. lat.). Annalen des Naturhistorischen Museums in Wien 5:77-194, 317-462. (distribution).