Now combined with another species, the cuckoo bumble bee Bombus flavidus, is the most broadly distributed bumble bee species of any kind in the world.
Bombus flavidus distribution - Entomology Today
Wi BBB: Bombus flavidus
Bombus sylvestris - Wikipedia
Cuckoo Combo: Re-Classification Makes Bombus flavidus World's Most Widespread Bumble Bee
Wi BBB: Bombus flavidus
PDF) Petition to List Suckley's Cuckoo Bumble Bee (Bombus suckleyi) under The Endangered Species Act and Concurrently Designate Critical Habitat
bumble bees Archives - Page 2 of 7 - Entomology Today
COSEWIC Assessment and Status Report on the Gypsy Cuckoo Bumble Bee (Bombus bohemicus) in Canada - 2014
Annotated checklist of the Swiss bees (Hymenoptera, Apoidea, Anthophila): hotspots of diversity in the xeric inner Alpine valleys
Building a Strong Community: A Key Step in Entomology Student Life
Red-tailed cuckoo bumblebee - Bumblebee Conservation Trust