Trypoxylon carinifrons Fox, 1891:142, ♂♀.Texas. - Sandhouse, 1940Sandhouse, G.A. 1940. A review of the Nearctic wasps of the genus Trypoxylon (Hymenoptera: Sphecidae). The American Midland Naturalist 24 (1):133-176.:165 ( listed as synonym of Trypoxylon fastigium Fox, 1894); 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.:1643 ( listed as synonym of Trypoxylon fastigium Fox, 1894).
Trypoxylon fastigium Fox, 1894:476 Replacement name for Trypoxylon carinifrons Fox, 1891 by Fox, 1894Fox, W.J. 1894. The North American Larridae. Proceedings of the Academy of Natural Sciences of Philadelphia 45 (1893):467-551.:476 (nec. Cam.). - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution); Sandhouse, 1940Sandhouse, G.A. 1940. A review of the Nearctic wasps of the genus Trypoxylon (Hymenoptera: Sphecidae). The American Midland Naturalist 24 (1):133-176. (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).
Trypoxylon subfrigidum Rohwer, 1909:378 Synonymized with Trypoxylon fastigium Fox, 1894 by Sandhouse, 1940Sandhouse, G.A. 1940. A review of the Nearctic wasps of the genus Trypoxylon (Hymenoptera: Sphecidae). The American Midland Naturalist 24 (1):133-176.:166. - 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.:1643 ( listed as synonym of Trypoxylon fastigium Fox, 1894).
Trypoxylon nigrellum Rohwer, 1909:379 Synonymized with Trypoxylon fastigium Fox, 1894 by Sandhouse, 1940Sandhouse, G.A. 1940. A review of the Nearctic wasps of the genus Trypoxylon (Hymenoptera: Sphecidae). The American Midland Naturalist 24 (1):133-176.:166. - 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.:1643 ( listed as synonym of Trypoxylon fastigium Fox, 1894).