Dressler, Robert L. 1982. “New Species of <i>Euglossa</i> IV. The <i>cordata</i> and <i>purpurea</i> Species Groups (Hymenoptera: Apidae)”. Revista De Biología Tropical 30 (2):141–150. https://revistas.ucr.ac.cr/index.php/rbt/article/view/25235.