description Bombus bifarius Overview
Bombus bifarius, commonly called the two-form bumble bee, is a social bumble bee native to western North America. It occurs in mountain forests, meadows, and nearby habitats, where colonies include a queen, female workers, and reproductive males, and adults forage from many flowering plants. The species is notable for geographic variation in abdominal coloration, with populations showing black, yellow, or reddish pattern elements.
help Bombus bifarius FAQ
What is the common name for Bombus bifarius?
Bombus bifarius is most commonly referred to as the two-form bumble bee. It is a social insect native to the western regions of North America.
What habitats do two-form bumble bees prefer?
They are typically found in mountain forests and meadows across western North America. These mountainous environments provide the diverse floral resources needed to feed their growing colonies.
What does a Bombus bifarius colony look like?
A typical colony is social and includes a single queen, numerous female workers, and eventually reproductive males. They build their nests, often underground in abandoned rodent burrows or under thick grass.
Are two-form bumble bees endangered?
While they are currently evaluated by conservation groups, many bumble bee species in North America face severe habitat loss. Bombus bifarius populations are closely monitored due to widespread declines in native bee numbers across the continent.
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