Two-spotted Bumble Bee

Bombus bimaculatus

Two-spotted Bumble Bee (Bombus bimaculatus)
Image: Wikipedia / Wikimedia Commons, CC BY-SA, wikipedia

The two-spotted bumble bee is a species of social bumble bee found in the eastern half of the United States and the adjacent south-eastern part of Canada. In older literature this bee is often referred to as Bremus bimaculatus, Bremus being a synonym for Bombus. The bee's common name comes from the two yellow spots on its abdomen. Unlike many of the other species of bee in the genus Bombus, B. bimaculatus is not on the decline, but instead is very stable. They are abundant pollinators that forage at a variety of plants. Source

Where it is now

No records in the last 8 weeks. It may be out of season where the observers and sensors are.

See the Two-spotted Bumble Bee on the live map

Arrival dates

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

RegionFirst arrivalLast arrivalTypical peakAreas
North America18 May 202625 May 202618 May 20262

Download every area as CSV

Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.