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Morrison's Bumblebee (Bombus morrisoni)

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description Morrison's Bumblebee (Bombus morrisoni) Overview

Morrison's bumblebee (Bombus morrisoni) is a social bee native to western North America, especially open, dry habitats in the United States. Colonies consist of a queen, female workers, and reproductive males and females, with nests typically established below ground. The species is predominantly yellow with contrasting dark markings and visits flowers for nectar and pollen, making it part of the pollinator community of arid and semi-arid landscapes.

help Morrison's Bumblebee (Bombus morrisoni) FAQ

Where does Morrison's bumblebee live?

Morrison's bumblebee (Bombus morrisoni) is native to western North America, especially the dry, open habitats of the western United States such as the interior basins and desert regions. It is not found in the eastern US.

Is Morrison's bumblebee endangered?

It has been flagged by conservation assessments as declining in parts of its range, but it has not received the US federal endangered listing that the rusty patched bumblebee got in 2017. Researchers continue to monitor its populations across the West.

Where does Bombus morrisoni nest?

Like most bumblebees, Morrison's bumblebee typically establishes its nest below ground, often in abandoned rodent burrows. The annual colony is made up of a single queen, female workers, and later reproductive males and new queens.

What do Morrison's bumblebees eat?

They are generalist foragers that collect nectar and pollen from the wildflowers of their arid western habitats. The availability of open, flower-rich rangeland is key to keeping colonies fed through the growing season.

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