Megachile paulistana Schrottky, 1902:440, ♀. 3 ♀♀, Est. de S. Paulo (Mus. Paul & Coll. Schrottky); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:48, Type ♀, examined (MZSP); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:57, Type ♀, examined (MZSP). - Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176. (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); Imperatriz-Fonseca et al., 2011Imperatriz-Fonseca, V.L., I. Alves-dos-Santos, P. Souza Santos-Filho, W. Engels, M. Ramalho, W. Wilms, J.B Vicentin Aguilar, C.A. Pinheiro-Machado, D. Araújo Alves & A. Matos Peixoto Kleinert 2011. Checklist of bees and honey plants from São Paulo State, Brazil. Biota Neotropica 11 (1a):631-655. (distribution); Gonzalez et al., 2012Gonzalez, V.H., J.S. Ascher & M.S. Engel 2012. A new Stelis (Dolichostelis) from northern Colombia (Hymenoptera: Megachilidae): first records for South America and a synopsis of the bee fauna from the Caribbean region of Colombia. Journal of Natural History 46 (47-48):2919-2934. (distribution); Oliveira Lima & Silvestre, 2017Oliveira Lima, F.V. de & R. Silvestre 2017. Abelhas (Hymenoptera, Apidae sensu lato) do Estado de Mato Grosso do Sul, Brasil. Iheringia Série Zoologia 107 (supl.):1-14. (distribution).
Megachile subita Mitchell, 1930:232, ♀. Holotype ♀, Chapada, Brazil (A.N.S.P., no. 4153, leg. H.H. Smith); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:48, Type ♀, examined (ANSP, 4153); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:57, Type ♀, examined (ANSP, 4153). Synonymized with Megachile paulistana Schrottky, 1902 by Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176.:100. - Mitchell, 1930Mitchell, T.B. 1930. A contribution to the knowledge of Neotropical Megachile with descriptions of new species (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 56 (3):155-305. (distribution); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a biological catalogue of the genus Megachile of the Neotropics. :1-97.:48 ( listed as synonym of Megachile paulistana Schrottky, 1902).