Halictus gemmatus Smith, 1853:65, ♀. ♀, Jamaica. - Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Ashmead, 1900Ashmead, W.H. 1900. Report upon the aculeate Hymenoptera of the islands of St. Vincent and Grenada, with additions to the parasitic Hymenoptera and a list of the described Hymenoptera of the West Indies. Transactions of the Entomological Society of London pt. II:207-367. (distribution); Friese, 1902Friese, H. 1902. Beitrag zur Apidenfauna der grossen Antillen. Zeitschrift für systematische Hymenopterologie und Dipterologie 1-2:196-201. (distribution); Friese, 1909Friese, H. 1909. Beitrag zur Bienenfauna der Kleinen Antillen und der Bermudas. Zoologische Jahrbücher Suppl. 11 (Erstes Heft):34-40. (distribution); Sandhouse, 1924Sandhouse, G.A. 1924. New American species of bees belonging to the genus Halictus (Chloralictus). Proceedings of the United States National Museum 65 (2532):1-43. (distribution). - As Dialictus gemmatus: - Raw, 1985Raw, A. 1985. The ecology of Jamaican bees (Hymenoptera). Revista Brasileira de Entomologia 29 (1):1-16. (distribution). - As Lasioglossum gemmatum: - Gibbs, 2018Gibbs, J. 2018. Bees of the genus Lasioglossum (Hymenoptera: Halictidae) from Greater Puerto Rico, West Indies. European Journal of Taxonomy 400:1-57. (distribution), 50 (listed).
Halictus bruesi Cockerell, 1912:485, ♂. Holotype ♂, Liguanea Plain, Jamaica, Nov.-Dec. 1911 (leg. C.T. Brues). Synonymized with Lasioglossum gemmatum (Smith, 1853) by Gibbs, 2018Gibbs, J. 2018. Bees of the genus Lasioglossum (Hymenoptera: Halictidae) from Greater Puerto Rico, West Indies. European Journal of Taxonomy 400:1-57.:50. - As Lasioglossum bruesi:
Halictus jamaicae Ellis, 1914:100, ♂♀. Holotype ♀, Liguanea Plain, Jamaica, 1911 (leg. C.T. Brues). Synonymized with Lasioglossum gemmatum (Smith, 1853) by Gibbs, 2018Gibbs, J. 2018. Bees of the genus Lasioglossum (Hymenoptera: Halictidae) from Greater Puerto Rico, West Indies. European Journal of Taxonomy 400:1-57.:50. - Sandhouse, 1924Sandhouse, G.A. 1924. New American species of bees belonging to the genus Halictus (Chloralictus). Proceedings of the United States National Museum 65 (2532):1-43. (distribution). - As Lasioglossum jamaicae: