Halictus desertus Smith, 1879:38, ♂♀. ♂, ♀, Mexico, Orizaba (British Museum); Cockerell, 1905Cockerell, T.D.A. 1905. Notes on some bees in the British Museum. Transactions of the American Entomological Society 31:309-364.:353, Type ♀ (British Museum), Lectotype ♀, examined (British Museum (BMNH)), designated by McGinley, 1986McGinley, R.J. 1986. Studies of Halictinae (Apoidea: Halicitidae), I. Revision of the New World Lasioglossum Curtis. Smithsonian Contributions to Zoology 429:1-294.:122. - Fox, 1893Fox, W.J. 1893. Report on some mexican Hymenoptera, principally from lower California. Proceedings of the California Academy of Sciences ser.2 (4):1-25. (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); Sandhouse & Cockerell, 1924Sandhouse, G. & T.D.A. Cockerell 1924. Expedition of the California Academy of Sciences to the Gulf of California in 1921. The bees (III). Proceedings of the California Academy of Sciences ser. 4: v. 13 (21):333-339. (distribution). - As Lasioglossum desertum: - McGinley, 1986McGinley, R.J. 1986. Studies of Halictinae (Apoidea: Halicitidae), I. Revision of the New World Lasioglossum Curtis. Smithsonian Contributions to Zoology 429:1-294. (distribution); Ruíz-Cancino & Coronado-Blanco, 2002Ruíz-Cancino, E. & J.M. Coronado-Blanco 2002. Artrópodos terrestres de los estados de Tamaulipas y Nuevo León, México. Serie Publicaciones Cientificas No. 4:1-376. (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); Esperanza de Pedro, 2021Esperanza de Pedro, D. 2021. . :. (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).
Halictus cyaneiceps Cockerell, 1916:254, ♂♀. Type ♀, Rio Ruidoso, New Mexico, alt. prox. 6500 ft., July 31 (leg. C.H.T. Townsend); McGinley, 1986McGinley, R.J. 1986. Studies of Halictinae (Apoidea: Halicitidae), I. Revision of the New World Lasioglossum Curtis. Smithsonian Contributions to Zoology 429:1-294.:123, Holotype ♀ (National Museum of Natural History, Smithsonian Institution). Synonymized with Lasioglossum desertum (Smith, 1879) by McGinley, 1986McGinley, R.J. 1986. Studies of Halictinae (Apoidea: Halicitidae), I. Revision of the New World Lasioglossum Curtis. Smithsonian Contributions to Zoology 429:1-294.:121.