Megachile binotata Lucas, in Guérin-Méneville, 1857:777, sex not indicated. Guérin-Méneville, 1829-1858Guérin-Méneville, M.F.E. 1829-1858. Iconographie du règne animal de G. Cuvier. Insectes. J. B. Baillière, Paris. 576 pp.:450,l'île de Saint-Thomas; Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:62, Type ♀ (unknown). - Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:62 ( listed as synonym of Megachile binotulata Dalla Torre, 1896).
Megachile binotulata Dalla Torre, 1896:422, no descr. Replacement name for Megachile binotata Lucas, in Guérin-Méneville, 1857 by Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643.:422 (nec Guérin). - 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); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97. (distribution).