Bumble bees are some of our most abundant and recognizable pollinators, essential for the pollination of many native flowering plant species. As such, the diversity of bumble bees has a long history of study by both professionals and amateurs. Because of such extensive study, it is felt that new species of bumble bees are unlikely to be found. Outstanding controversies remain, however, in what comprises a given bumble bee species.
Western Bumble Bee and Native Pollinator Research
Patterns of widespread decline in North American bumble bees
Scientists fail to locate once-common CA bumble bees
Maryland Biodiversity Project - Common Eastern Bumble Bee (Bombus
Maryland Biodiversity Project - Common Eastern Bumble Bee (Bombus
Maryland Biodiversity Project - Two-spotted Bumble Bee (Bombus
USBombus, a database of contemporary survey data for North
Common Eastern Bumble Bee - Montana Field Guide
One of the most common North American bumble bee species is