Epeolus aztecus Cresson, 1878:89, ♀. 2 ♀♀, Mexico (leg. Sumichrast); Brumley, 1965Brumley, R.L. 1965. A Revision of the Bee Genus Epeolus Latreille of Western America North of Mexico. M.S. thesis. Utah State University, Logan, Utah. iii + 92 pp.:73, Holotype (ANSP). - Cresson, 1879Cresson, E.T. 1879. Catalogue of North American Apidae. Transactions of the American Entomological Society and Proceedings of the Entomological Section of the Academy of Natural Sciences 7:215-232. (distribution); Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Cockerell, 1899Cockerell, T.D.A. 1899. Catálogo de las Abejas de Mexico. Biblioteca Agricola de las Secretaria de Fomento, Mexico, 1-20. (distribution). - As Deringiella aztecus: - 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 Triepeolus aztecus: - Rightmyer, 2008Rightmyer, M.G. 2008. A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).-Part I. Zootaxa 1710:1-170. (distribution).
Epeolus flavocinctus Friese, 1916:297, 336, ♀. Holotype ♀, San José (leg. Schmidt), Neotype ♀, San Mateo (Alajuela), Costa Rica, 1904 (Zoologisches Museum, Humboldt-Universität), designated by Rightmyer, 2008Rightmyer, M.G. 2008. A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).-Part I. Zootaxa 1710:1-170.:37. Synonymized with Triepeolus aztecus (Cresson, 1878) by Rightmyer, 2008Rightmyer, M.G. 2008. A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).-Part I. Zootaxa 1710:1-170.:37.
Epeolus costaricensis Friese, 1925:32, ♂♀.S. José, 4.-6. November 1922 (leg. Schmidt), Lectotype ♀, San José, Costa Rica, 11 April 1903 (Zoologisches Museum, Humboldt-Universität), designated by Rightmyer, 2008Rightmyer, M.G. 2008. A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).-Part I. Zootaxa 1710:1-170.:37. Synonymized with Triepeolus aztecus (Cresson, 1878) by Rightmyer, 2008Rightmyer, M.G. 2008. A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).-Part I. Zootaxa 1710:1-170.:37.
Epeolus albopictus Cockerell, 1949:459, ♂. Holotype ♂, Honduras: San Francisco finca, near Zamorano, November 3, 1946 (U.S.N.M., No. 58535, leg. W. P. Cockerell); Rightmyer, 2008Rightmyer, M.G. 2008. A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).-Part I. Zootaxa 1710:1-170.:37, Holotype ♂ (U. S. National Museum of Natural History, No. 58535). Synonymized with Triepeolus aztecus (Cresson, 1878) by Rightmyer, 2008Rightmyer, M.G. 2008. A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).-Part I. Zootaxa 1710:1-170.:37.