Bembex longiróstra Say, 1837:366,Mexico; Gillaspy, 1964Gillaspy, J.E. 1964. A revisionary study of the genus Steniolia (Hymenoptera: Sphecidae: Bembicini). Transactions of the American Entomological Society 89 (1/2):1-117.:84, Type ♂ presumably destroyed. - Say, 1837Say, T. 1837. Descriptions of new species of North American Hymenoptera, and observations on some already described [Concluded from p. 305]. Boston Journal of Natural History 1 (4):361-416.:366 (comb. nov.); Smith, 1856Smith, F. 1856. Catalogue of Hymenopterous Insects in the Collection of the British Museum. Part IV. Sphegidae, Larridae, and Crabronidae. London. 497 pp. (distribution). - As Steniolia longirostra: - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:92 (listed); Cameron, 1890Cameron, P. 1890. Biologia Centrali-Americana. Insecta. Hymenoptera. (Fossores) Vol. II. :65-129. (distribution); Gillaspy, 1964Gillaspy, J.E. 1964. A revisionary study of the genus Steniolia (Hymenoptera: Sphecidae: Bembicini). Transactions of the American Entomological Society 89 (1/2):1-117. (distribution); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139. (distribution); 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). - As Steniolia longirostris: - Handlirsch, 1889Handlirsch, A. 1889. Monographie der mit Nysson und Bembex verwandten Grabwespen. IV. Sitzber. Akad. Wiss. Wien Abt. 1 98:440-517. (distribution); Handlirsch, 1895Handlirsch, A. 1895. Nachträge und Schlußwort zur Monographie der mit Nysson und Bembex verwandten Grabwespen. Sitzber. Akad. Wiss. Wien Abt. 1 104:801-1079. (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); Parker, 1929Parker, J.B. 1929. A generic revision of the fossoriel wasps of the tribes Stizini and Bembicini, with notes and descriptions of new species. Proceedings of the United States National Museum 75:1-203. (distribution).
Monedula Montezuma Smith, 1856:334, ♂♀. ♂, ♀, Mexico; Gillaspy, 1964Gillaspy, J.E. 1964. A revisionary study of the genus Steniolia (Hymenoptera: Sphecidae: Bembicini). Transactions of the American Entomological Society 89 (1/2):1-117.:84, Type ♂ (BMNH). - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:92 ( listed as synonym of Steniolia longirostra (Say, 1837)); Handlirsch, 1889Handlirsch, A. 1889. Monographie der mit Nysson und Bembex verwandten Grabwespen. IV. Sitzber. Akad. Wiss. Wien Abt. 1 98:440-517.:508 ( listed as synonym of Steniolia longirostris (Say, 1837)); Gillaspy, 1964Gillaspy, J.E. 1964. A revisionary study of the genus Steniolia (Hymenoptera: Sphecidae: Bembicini). Transactions of the American Entomological Society 89 (1/2):1-117.:84 ( listed as synonym of Steniolia longirostra (Say, 1837)). - As Steniolia montezuma: - Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139.:12 ( listed as synonym of Steniolia longirostra (Say, 1837)).