Megachile adempta Cockerell, 1931:538, ♀. Holotype ♀, Yucatan: Chichenitza (Museum of Comparative Zoology, Harvard University, leg. Bequaert); Raw, 2002Raw, A. 2002. New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae). Zootaxa 71:1-43.:23, Type ♀ (MCZ, 16266); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:53, Type ♀, examined (MCZ, 16266); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:63, Type ♀, examined (MCZ, 16266). - Cockerell, 1932Cockerell, T.D.A. 1932. Bees (Hymenoptera, Apoidea) collected at Chichen Itzá, Yucatan, by the Harvard expeditions of 1929-1930. Bulletin of the Brooklyn Entomological Society 27:9-17. (distribution); Raw, 2002Raw, A. 2002. New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae). Zootaxa 71:1-43. (distribution); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97. (distribution); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127. (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).