Tachysphex Ashmeadii Fox, 1894:509, ♀.San Diego, California, August 23rd, 1891 (leg. Dr. F. Blaisdell); Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141, Holotype ♀ (ANSP). - 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); Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211. (distribution); Horta Vega et al., 2013Horta Vega, J.V., M. Vanoye-Eligio, M.E. García-Gutiérrez, J.M.Coronado-Blanco & L. Barrientos-Lozano 2013. Crabronidae (Hymenoptera) de la localidad Cañón del Novillo, Victoria, Tamaulipas, México. Acta Zool. Mex. (n.s.) 29 (2):376-387. (distribution). - As Tachysphex ashmeadis: - 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 Tachysphex ashmeadis: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution).
Tachysphex posterus Fox, 1894:510, ♀.State of Washington; Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141, Holotype ♀ (ANSP). - 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 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.:1632 ( listed as synonym of Tachysphex ashmeadii Fox, 1894); Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141 ( listed as synonym of Tachysphex ashmeadii Fox, 1894).
Tachysphex spinosus Fox, 1894:511, ♀. U. S. National Museum, Los Angeles County, California; Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141, Holotype ♀ (USNM). - 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 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.:1632 ( listed as synonym of Tachysphex ashmeadii Fox, 1894); Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141 ( listed as synonym of Tachysphex ashmeadii Fox, 1894).
Tachysphex spissatus Fox, 1894:514, ♂.California; Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141, Holotype ♂ (ANSP). - 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.:1632 ( listed as synonym of Tachysphex ashmeadii Fox, 1894); Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141 ( listed as synonym of Tachysphex ashmeadii Fox, 1894).
Larra rufipes Provancher, 1895:129, Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141, Holotype ♀ (Laval Univ. Quebec). - 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.:1632 ( listed as synonym of Tachysphex ashmeadii Fox, 1894); Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141 ( listed as synonym of Tachysphex ashmeadii Fox, 1894).
Tachysphex propinquus Viereck, 1904:85, Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141, Holotype ♀ (ANSP). Synonymized with Tachysphex ashmeadii Fox, 1894 by 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.:1632. - Pulawski, 1988Pulawski, W.J. 1988. Revision of North American Tachysphex wasps including Central American and Caribbean species (Hymenoptera: Sphecidae). Memoirs of the California Academy of Sciences 10:1-211.:141 ( listed as synonym of Tachysphex ashmeadii Fox, 1894).