Menke, Arnold S., and Fernando Fernández. “Illustrated Keys for Neotropical Sphecids (Apoídea:Sphecidae) Subfamilies, Tribes, and Genera”. Revista de Biología Tropical 44, no. S2 (December 1, 1996): 1–68. Accessed May 21, 2024. https://www.revistas.ucr.ac.cr/index.php/rbt/article/view/56430.