Kuhlmann, Michael, and Maxim Yu. Proshchalykin. 2015. “New and Remarkable Asian and North African Species of Colletes Latreille (Hymenoptera: Colletidae)”. Zootaxa 4028 (1). Auckland, New Zealand:81–101. https://doi.org/10.11646/zootaxa.4028.1.3.