Bumble Bees of the Western United States - USDA Forest Service
Bumble Bees of the Western United States - USDA Forest Service
Bumble Bees of the Western United States - USDA Forest Service
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Bombus sitkensisSitka bumble bee• Status: Common• Select food plant genera: Ebilobium, Lupinus, Rubus, Rosa,Vicia, Rhododendron• Tongue Length: Medium• Distribution: Almost exclusive to Pacific coastline in <strong>the</strong> U.S.except for populations found in <strong>the</strong> Sawtooth wilderness <strong>of</strong>nor<strong>the</strong>rn Idaho• Can be confused with B. flavifrons, B. mixtus, andB. melanopygusB. sitkensis phenology - Puget Sound, WAMalesWorkersQueensJan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecBombus sitkensis.Photo James Strange38 <strong>Bumble</strong> <strong>Bees</strong> <strong>of</strong> <strong>the</strong> <strong>Western</strong> <strong>United</strong> <strong>States</strong>
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