Murao, Ryuki, Shuichi Ikudome, and Osamu Tadauchi. “Colletes Jankowskyi (Hymenoptera: Colletidae) Newly Recorded from Japan, With Some Biological Notes and DNA Barcodes”. Journal of Melittology, no. 63 (August 26, 2016): 1–10. Accessed May 3, 2024. https://journals.ku.edu/melittology/article/view/5672.