Dathe, H. H. (2011). Studies on the systematics and taxonomy of the genus Hylaeus F. (7) Indialaeus subgen. nov., a new subgenus of Hylaeus from the Oriental Region (Hymenoptera: Anthophila, Colletidae). Beitr├Ąge Zur Entomologie = Contributions to Entomology, 61(2), 243-258. https://doi.org/10.21248/contrib.entomol.61.2.243-258