Abstract
Two species of the Colletes flavicornis-group from China are treated in this paper. C. vestitus sp. n. from Xinjiang is illustrated and described, and C. popovi Noskiewicz, 1936 is illustrated and redescribed. Both sexes of the two species are in addition characterized by DNA barcodes. The type specimens of the new species are deposited in the Insect Collection of Institute of Zoology, Chinese Academy of Sciences, Beijing, China.