Halictus callopis Vachal, 1911:41, Engel & Brooks, 1999Engel, M.S. & R.W. Brooks 1999. The Augochlorine bee benus Megaloptilla (Hymenoptera: Halictidae). In: Byers, G.W., R.H. Hagen & R.W. Brooks (Ed.). Entomological Contributions in Memory of Byron A. Alexander. 9-15.:11, Lectotype ♀ (MNHN); Rasmussen, 2012Rasmussen, C. 2012. Joseph Vachal (1838–1911): French entomologist and politician. Zootaxa 3442:1-52.:21, Types (MNHN). - As Megaloptilla callopis: - Engel & Brooks, 1999Engel, M.S. & R.W. Brooks 1999. The Augochlorine bee benus Megaloptilla (Hymenoptera: Halictidae). In: Byers, G.W., R.H. Hagen & R.W. Brooks (Ed.). Entomological Contributions in Memory of Byron A. Alexander. 9-15. (distribution); Smith-Pardo, 2003Smith-Pardo, A.H. 2003. A preliminary account of the bees of Colombia (Hymenoptera: Apoidea): present knowledge and future directions. Journal of the Kansas Entomological Society 76 (2):335-341. (distribution).
Augochlora cupriventris Friese, 1925:6, ♀. 5 ♀, Guayaquil und Taura Boluta (Ecuador), März (leg. G. v. Buchwald). Synonymized with Megaloptilla callopis (Vachal, 1911) by Engel, 2007Engel, M.S. 2007. Two new augochlorine bees from Ecuador (Hymenoptera: Halictidae). Acta entomologica Slovenica 15 (1):21-29.:23.
Caenaugochlora cuprina Moure & Hurd, 1987:233 Synonymized with Megaloptilla callopis (Vachal, 1911) by Engel, 2007Engel, M.S. 2007. Two new augochlorine bees from Ecuador (Hymenoptera: Halictidae). Acta entomologica Slovenica 15 (1):21-29.:23.