Megachile simillima Smith, 1853 - Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Gonzalez et al., 2018Gonzalez, V.H., T. Griswold & M.S. Engel 2018. South American leaf-cutter bees (genus Megachile) of the subgenera Rhyssomegachile and Zonomegachile, with two new subgenera (Hymenoptera: Megachilidae). Bulletin of the American Museum of Natural History 425:1-73. (distribution); Guevara et al., 2022Guevara, D.A., R. Ospina-Torres, V.H. Gonzalez 2022. New records of megachilid bees (Hymenoptera: Megachilidae) for Colombia. Revista Peruana de biología 29 (4):1-6. (distribution).
Megachile cara Mitchell, 1930:263, Neotype ♂ (NCSU, 0020754), designated by Gonzalez et al., 2018Gonzalez, V.H., T. Griswold & M.S. Engel 2018. South American leaf-cutter bees (genus Megachile) of the subgenera Rhyssomegachile and Zonomegachile, with two new subgenera (Hymenoptera: Megachilidae). Bulletin of the American Museum of Natural History 425:1-73.:33. - Gonzalez et al., 2018Gonzalez, V.H., T. Griswold & M.S. Engel 2018. South American leaf-cutter bees (genus Megachile) of the subgenera Rhyssomegachile and Zonomegachile, with two new subgenera (Hymenoptera: Megachilidae). Bulletin of the American Museum of Natural History 425:1-73.:33 ( listed as synonym of Megachile simillima Smith, 1853).
Megachile stabilis Mitchell, 1930:298, Neotype ♀ (NCSU, 0005853), designated by Gonzalez et al., 2018Gonzalez, V.H., T. Griswold & M.S. Engel 2018. South American leaf-cutter bees (genus Megachile) of the subgenera Rhyssomegachile and Zonomegachile, with two new subgenera (Hymenoptera: Megachilidae). Bulletin of the American Museum of Natural History 425:1-73.:33. - Gonzalez et al., 2018Gonzalez, V.H., T. Griswold & M.S. Engel 2018. South American leaf-cutter bees (genus Megachile) of the subgenera Rhyssomegachile and Zonomegachile, with two new subgenera (Hymenoptera: Megachilidae). Bulletin of the American Museum of Natural History 425:1-73.:33 ( listed as synonym of Megachile simillima Smith, 1853).