Sheffield, Cory S., Lars Vilhelmsen, and Frederique Bakker. “Taxonomy of the New World Bee Genus Agapostemon Guérin-Méneville – New Names and Synonymies (Hymenoptera: Halictidae)”. European Journal of Taxonomy 751, no. 1 (May 25, 2021): 1–23. Accessed June 14, 2021. https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1375.