Megachile bahamensis Mitchell, 1927:47, ♀. Holotype ♀, Mangrove Cay, Andros, Bahamas, Aug. 1, 1904 (Mus. Comp. Zool., No. 15716, leg. Allen, Barbour & Bryant); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:51, Type ♀, examined (MCZ, 15716); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:60, Type ♀, examined (MCZ, 15716). - Krombein, 1953Krombein, K.V. 1953. The wasps and bees of the Bimini Island Group, Bahamas, British West Indies (Hymenoptera: Aculeata). American Museum Novitates 1633:1-29. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557. (distribution); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution); Pascarella et al., 1999Pascarella, J.B., Waddington, K.D. & Neal, P.R. 1999. The Bee Fauna (Hymenoptera: Apoidea) of Everglades National Park, Florida and adjacent areas: Distribution, Phenology, and Biogeography. Journal of the Kansas Entomological Society 72 (1):32-45. (distribution); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97. (distribution); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution).
Megachile floridensis Mitchell, 1934:349, ♂♀. Holotype ♂, Miami, Florida, June 10, 1927 (U.S.N.M., no. 44243, leg. S. Graenicher); Mitchell, 1937Mitchell, T.B. 1937. A revision of the genus Megachile in the Nearctic Region. Part VI. Taxonomy of subgenera Argyropile, Leptorachis, Pseudocentron, Acentron and Melanosarus (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 63 (1):45-83.:80, Type ♂ (U.S.N.M., no. 44243); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:51, Type ♂, examined (USNM, 44243); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:60, Type ♂, examined (USNM, 44243). Synonymized with Megachile bahamensis Mitchell, 1927 by Krombein, 1953Krombein, K.V. 1953. The wasps and bees of the Bimini Island Group, Bahamas, British West Indies (Hymenoptera: Aculeata). American Museum Novitates 1633:1-29.:21. - Krombein, 1953Krombein, K.V. 1953. The wasps and bees of the Bimini Island Group, Bahamas, British West Indies (Hymenoptera: Aculeata). American Museum Novitates 1633:1-29. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:169 ( listed as synonym of Megachile bahamensis Mitchell, 1927); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:2069 ( listed as synonym of Megachile bahamensis Mitchell, 1927); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:51 ( listed as synonym of Megachile bahamensis Mitchell, 1927); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . ( listed as synonym of Megachile bahamensis Mitchell, 1927); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:60 ( listed as synonym of Megachile bahamensis Mitchell, 1927).