Michener, Charles D., and Kathleen R. Eickwort. “Observations on Nests of <i>Ceratina</i> In Costa Rica (Hymenoptera, Apoidea)”. Revista de Biología Tropical 14, no. 2 (December 1, 1966): 279–286. Accessed November 25, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/28537.