Danilov, Yuriy N. “Type Specimens of Sphecidae (Hymenoptera, Apoidea) in the Zoological Institute of the Russian Academy of Sciences in St. Petersburg”. Zootaxa 4136, no. 2 (July 6, 2016): 335–359. Accessed April 21, 2025. https://mapress.com/zt/article/view/zootaxa.4136.2.5.