Trypoxylon xantianum Saussure, 1867:78, ♂♀.St. Lucae, Californiae; Coville, 1982Coville, R.E. 1982. Wasps of the genus Trypoxylon, subgenus Trypargilum in North America (Hymenoptera: Sphecidae). University of California Press, 1-147.:99, Lectotype ♂, examined (MHN). - Fox, 1891Fox, W.J. 1891. On the species of Trypoxylon inhabiting America north of Mexico. Transactions of the American Entomological Society 18 (2):136-148. (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); 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); Coville, 1982Coville, R.E. 1982. Wasps of the genus Trypoxylon, subgenus Trypargilum in North America (Hymenoptera: Sphecidae). University of California Press, 1-147. (distribution); Amarante, 2005Amarante, S.T.P. 2005. Addendum and corrections to a synonymic catalog of Neotropical Crabronidae and Sphecidae. Papéis Avulsos de Zoologia 45 (1):1-18. (distribution). - As Trypargilum xantianum: - 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), 1647 (comb. nov.). - As Trypoxylon xanthianum: - 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).