Dathe, H. (2015). Studies on the systematics and taxonomy of the genus Hylaeus F. (9) Supplement to the taxonomy and distribution of Afrotropical Hylaeus F. species (Hymenoptera: Anthophila, Colletidae). Beitr├Ąge Zur Entomologie = Contributions to Entomology, 65(1), 9-26. https://doi.org/10.21248/contrib.entomol.65.1.9-26