Astafurova, Yulia, and Maxim Proshchalykin. “New and Little-Known Bees of the Genus Sphecodes Latreille, 1804 (Hymenoptera: Apoidea: Halictidae) from the Himalayas”. European Journal of Taxonomy 729, no. 1 (December 28, 2020): 74–120. Accessed November 26, 2024. https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1195.