Proshchalykin, M. Y. and Dathe, H. H. (2012) “The bees of the genus Hylaeus Fabricius 1793 of the Asian part of Russia, with a key to species (Hymenoptera: Apoidea: Colletidae)”, Zootaxa. Auckland, New Zealand, 3401(1), pp. 1–36. doi: 10.11646/zootaxa.3401.1.1.