Bombus affinis (Rusty Patched Bumble Bee) is a species of Hymenoptera in the family Apidae. They are listed as critically endangered by IUCN and as endangered by COSEWIC. They visit flowers of Euthamia, Agastache scrophulariifolia, wholeleaf rosinweed, and Asclepias tuberosa.
EOL has data for 13 attributes, including: