Villamizar, G., and F. Vivallo. “Taxonomic Revision of the Oil-Collecting Bee Subgenus Epicharis (Epicharitides) Moure, 1945 (Hymenoptera: Apidae), With the Description of Two New Species ”. European Journal of Taxonomy, vol. 928, no. 1, Mar. 2024, pp. 1–61, doi:10.5852/ejt.2024.928.2477.