Megalopta genalis Meade-Waldo, 1916:452 (key), 453, ♀. Holotype ♀, Panama: Bugaba (Coll. Godman-Salvin, leg. G.C. Champion); Engel, 2006Engel, M.S. 2006. A new nocturnal bee of the genus Megalopta, with notes on other Central American species (Hymenoptera: Halictidae). Mitteilungen des Internationalen Entomologischen Vereins 31 (1-2):37-44.:44, Holotype, examined (BMNH); Santos & Melo, 2015Santos, L.M. & G.A.R. Melo 2015. Updating the taxonomy of the bee genus Megalopta (Hymenoptera: Apidae, Augochlorini) including revision of the Brazilian species. Journal of Natural History 49 (11-12):575-674.:639, Holotype ♀ (BMNH). - Friese, 1926Friese, H. 1926. Die Nachtbienen-Gattung Megalopta Sm. Stettiner Entomologische Zeitung 87:111-135. (distribution); Schwarz, 1934Schwarz, H.F. 1934. The solitary bees of Barro Colorado Island, Canal Zone. American Museum Novitates 722:1-24. (distribution); Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176. (distribution); Smith-Pardo, 2003Smith-Pardo, A.H. 2003. A preliminary account of the bees of Colombia (Hymenoptera: Apoidea): present knowledge and future directions. Journal of the Kansas Entomological Society 76 (2):335-341. (distribution); Sagot et al., 2018Sagot, P, J. Mérida, R. Ayala & R. Vandame 2018. Situación actual del conocimiento de la fauna de abejas (Apoidea: Anthophila) del estado de Chiapas, México. In: (Ed.). Memorias X Congreso Mesoamericano sobre Abejas Nativas. 191-2011. (distribution).
Megalopta fornix panamensis Cockerell, 1919:207, ♂♀. Holotype ♀, Trinidad Rio, Panama, March 23, 1912 (U.S.N.M., No. 21681, leg. Busck); Engel, 2006Engel, M.S. 2006. A new nocturnal bee of the genus Megalopta, with notes on other Central American species (Hymenoptera: Halictidae). Mitteilungen des Internationalen Entomologischen Vereins 31 (1-2):37-44.:44, Holotype (USNM). - Friese, 1926Friese, H. 1926. Die Nachtbienen-Gattung Megalopta Sm. Stettiner Entomologische Zeitung 87:111-135. (distribution); Cockerell, 1928Cockerell, T.D.A. 1928. Bees collected by Nathan Banks in the vicinity of the Panama Canal. Psyche 35:173-181. (distribution); Schwarz, 1934Schwarz, H.F. 1934. The solitary bees of Barro Colorado Island, Canal Zone. American Museum Novitates 722:1-24. (distribution); Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176.:84 ( listed as synonym of Megalopta genalis Meade-Waldo, 1916); Engel, 2006Engel, M.S. 2006. A new nocturnal bee of the genus Megalopta, with notes on other Central American species (Hymenoptera: Halictidae). Mitteilungen des Internationalen Entomologischen Vereins 31 (1-2):37-44.:44 ( listed as synonym of Megalopta genalis Meade-Waldo, 1916). - As Megalopta panamensis: - Cockerell, 1918Cockerell, T.D.A. 1918. Bees from British Guiana. Bull. American Mus. Nat. Hist. 38:685-690. (distribution).
Megalopta tabascana Cockerell, 1919:207, ♂. Holotype ♂, Frontera, Tabasco, Mexico (U.S.N.M., No. 21682); Engel, 2006Engel, M.S. 2006. A new nocturnal bee of the genus Megalopta, with notes on other Central American species (Hymenoptera: Halictidae). Mitteilungen des Internationalen Entomologischen Vereins 31 (1-2):37-44.:44, Holotype, examined (USNM). Synonymized with Megalopta genalis Meade-Waldo, 1916 by Engel, 2006Engel, M.S. 2006. A new nocturnal bee of the genus Megalopta, with notes on other Central American species (Hymenoptera: Halictidae). Mitteilungen des Internationalen Entomologischen Vereins 31 (1-2):37-44.:44. - Friese, 1926Friese, H. 1926. Die Nachtbienen-Gattung Megalopta Sm. Stettiner Entomologische Zeitung 87:111-135. (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).