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 - doi: 10.21248/contrib.entomol.61.2.243-258