Ceratina ignara Cresson, 1878:132, ♀. 8 ♀♀, Mexico (leg. Sumichrast). - 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); Cockerell, 1912Cockerell, T.D.A. 1912. Descriptions and records of bees. - XLIV. The Annals and Magazine of Natural History ser. 8: v. 9 (53):554-568. (distribution); Cockerell, 1949Cockerell, T.D.A. 1949. Bees from Central America, principally Honduras. Proceedings of the United States National Museum 98 (No. 3233):429-490. (distribution); Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176. (distribution); Vergara & Ayala, 2002Vergara, C.H. & R. Ayala 2002. Diversity, Phenology and Biogeography of the bees (Hymenoptera: Apoidea) of Zapotitlán de las Salinas, Puebla, Mexico. Journal of the Kansas Entomological Society 75 (1):16-30. (distribution); Yáñez-Ordóñez & Hinojosa-Díaz, 2004Yáñez-Ordóñez, O. & I. Hinojosa-Díaz 2004. La colección himenopterológica (Insecta) del Museo de Zoología Alfonso L. Herrera de la Facultad de Ciencias, UNAM, México. Acta Zoológica Mexicana (nueva serie) 20 (1):167-197. (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).
Ceratina Townsendi Cockerell, 1903:453, ♀. 9 ♀♀, San Rafael, Rio Nautla, Vera Cruz, Mexico, March 8 to 19 (leg. C.H.T. Townsend). - Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176.:148 ( listed as synonym of Ceratina ignara Cresson, 1878).
Ceratina cuprea Friese, 1916:294, 325, ♂♀. 1 ♂, 2 ♀♀, San José (leg. Schmidt). - Friese, 1925Friese, H. 1925. Neue neotropische Bienenarten, zugleich II. Nachtrag zur Bienenfauna von Costa Rica (Hym.). Stettiner Entomologische Zeitung 86 (2):1-41. (distribution); Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176.:148 ( listed as synonym of Ceratina ignara Cresson, 1878).