Rearing Bumble Bees for Research and Profit: Practical and Ethical Considerations
ARCHIVE - Bombus occidentalis - ize2010
Bumblebee - New World Encyclopedia
Our Once Most Common Bee Needs Saving. Here's What We Can Do
List of bumblebee species - Wikipedia
Leptoglossus occidentalis (Western Conifer Seed Bug) – 10,000 Things of the Pacific Northwest
The Buzz: Protecting Our Bumble Bees - Bug Squad - ANR Blogs
Medical Entomology Archives - Insect Diagnostic Lab
The Buzz: Protecting Our Bumble Bees - Bug Squad - ANR Blogs
The pollinator that got away
Bumble Bees Galway Beekeepers
Anexo:Especies de Bombus - Wikipedia, la enciclopedia libre
Bombus terricola - Wikipedia
Western Bumble Bee (Bombus occidentalis) · iNaturalist
Western Bumble Bee (Bombus occidentalis) · iNaturalist