Megachile aurantipennis Cockerell, 1912:26, ♂♀. 1 ♀, Quirigua, Guatemala, Feb. 11, 1912 (leg. W.P. Cockerell); Holotype ♂, Quirigua, Guatemala, Feb. 11, 1912 (leg. W.P. Cockerell); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:73, Type ♂, examined (USNM, 23282); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:88, Type ♂, examined (USNM, 23282). - Cockerell, 1914Cockerell, T.D.A. 1914. New and little known bees. The Entomologist 47 (611):115-119. (distribution); Cockerell, 1923Cockerell, T.D.A. 1923. Some bees from British Guiana. The Annals and Magazine of Natural History ser. 9: v. 11 (64):442-459. (distribution); 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); Cockerell, 1946Cockerell, T.D.A. 1946. New species and subspecies collected in a month in Guatemala. Journal of the New York Entomological Society 54 (3):203-206. (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).