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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Apoidea (clade Anthophila) - Bees » Cuckoo, Carpenter, Digger, Bumble, and Honey Bees (Apidae) » Honey, Bumble, Longhorn, Orchid, and Digger Bees (Apinae) » Bumble Bees (Bombini) » Bumble Bees (Bombus) » Subgenus Pyrobombus (Bombus Subgenus Pyrobombus) » Sitka Bumble Bee (Bombus sitkensis)

Species Bombus sitkensis - Sitka Bumble Bee

Large robust bumble bee - Bombus sitkensis Bumble bee on Centaurea montana - Bombus sitkensis - female bumblebee - Bombus sitkensis Bombus sitkensis? - Bombus sitkensis - female Bombus unknown Saltspring - Bombus sitkensis Bombus - Bombus sitkensis Bombus - Bombus sitkensis Bombus - Bombus sitkensis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Apoidea (clade Anthophila) - Bees)
Family Apidae (Cuckoo, Carpenter, Digger, Bumble, and Honey Bees)
Subfamily Apinae (Honey, Bumble, Longhorn, Orchid, and Digger Bees)
Tribe Bombini (Bumble Bees)
Genus Bombus (Bumble Bees)
No Taxon (Subgenus Pyrobombus)
Species sitkensis (Sitka Bumble Bee)
Explanation of Names
Author: Nylander, 1848
Identification
Very similar to the sympatric dimidiatus form of B. flavifrons but with a darker scutellum and a conspicuous buff tip to the abdominal apex.
Habitat
Best known from the humid coasts of northern California and the Pacific Northwest but also extends inland in humid areas. Not expected at drier sites.
Food
The Hosts section of its Discover Life species page lists known associations based on specimen records and images.
Remarks
More common in the northern part of its range, such as Washington State, than in the southern portion such as the San Francisco Bay Area.
Internet References
Discover Life
Contributed by Beatriz Moisset on 26 June, 2007 - 11:09am
Additional contributions by John S. Ascher
Last updated 15 February, 2014 - 1:41am

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