Müller, Andreas, Gideon Pisanty, and Achik Dorchin. “Western Palaearctic Chelostoma Bees of the Subgenus Chelostoma (Megachilidae, Osmiini): Biology, Taxonomy and Key to Species”. Zootaxa 5717, no. 3 (November 6, 2025): 329–369. Accessed February 24, 2026. https://www.mapress.com/zt/article/view/zootaxa.5717.3.3.