description Bombus sitkensis Overview
Bombus sitkensis, the Sitka bumble bee, is a bumblebee native to western North America, with a range centered on the Pacific coast from Alaska through western Canada and into the northwestern United States. It occurs in cool coastal and montane environments and visits flowering plants for nectar and pollen, contributing to the pollination of wild vegetation. Like other non-parasitic bumblebees, it forms annual colonies with a queen, female workers, and seasonally produced males.
help Bombus sitkensis FAQ
Where is Bombus sitkensis found?
The Sitka bumble bee occurs in western North America, from Alaska and British Columbia through Washington and into parts of the northwestern United States. Conservation summaries also describe populations in coastal mountain ranges and some inland mountain areas. [Species account](https://en.wikipedia.org/wiki/Bombus_sitkensis)
What habitat does the Sitka bumble bee use?
Reported habitats include open grassy prairies and mountain meadows, which fit its cool coastal and montane range. It forages on flowering plants in those open areas rather than depending on a single crop. [Species account](https://en.wikipedia.org/wiki/Bombus_sitkensis)
Who named Bombus sitkensis?
The species is attributed to Nylander and dated 1848 in published species summaries. It belongs to the bumblebee genus Bombus and is not one of the parasitic cuckoo-bumblebee species. [Species account](https://en.wikipedia.org/wiki/Bombus_sitkensis)
How is Bombus sitkensis different from Bombus vestalis?
Bombus sitkensis is a social bumble bee, whereas Bombus vestalis is a cuckoo bumblebee that takes over a Bombus terrestris nest. In practical terms, vestalis has no worker caste of its own, while sitkensis is a colony-forming bumble bee. [Sitka bumble bee](https://en.wikipedia.org/wiki/Bombus_sitkensis)
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