Size ³

Female 17 - 18 mm
Male 11 - 15 mm
No worker

Food plants ³

Aster, Senecio, Potentilla, Trifolium, Chamaebatia, Cirsium

Nest ⁴

Parasitic queens invade hosts nests

Similar species ⁴

Indiscriminate Cuckoo Bumble Bee (B. insularis)
Ashton Cuckoo Bumble Bee (B. bohemicus)
Suckley's Cuckoo Bumble Bee (B. suckleyi)

Sources and Credits

1. no rights reserved, uploaded by Kent McFarland
2. Chloé Recouvreur, no known copyright restrictions (public domain), uploaded by Chloé Recouvreur, https://www.fs.fed.us/wildflowers/pollinators/documents/BumbleBeeGuideWestern2012.pdf
3. (c) Chloé Recouvreur, some rights reserved (CC BY-ND), https://www.inaturalist.org/guide_taxa/1678557
4. (c) Chloé Recouvreur, some rights reserved (CC BY-SA), https://www.inaturalist.org/guide_taxa/1678557

More Info

• iNaturalistAU taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• BugGuide
• CalPhotos
• CUIC Insect Images
• Global Biodiversity Information Facility (GBIF)
• NatureServe Explorer 2.0

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