Niu Z-Q, Zhu C-D, Kuhlmann M.

Bees of the Colletes clypearis-group (Hymenoptera: Apoidea: Colletidae) from China with descriptions of seven new species

. Zootaxa [Internet]. 2013 Dec. 4 [cited 2025 Apr. 24];3745(2):101–151. Available from: https://mapress.com/zt/article/view/zootaxa.3745.2.1