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 - Wikipedia
range Archives - Entomology Today
Cuckoo Combo: Re-Classification Makes Bombus flavidus World's Most
Indiscriminate Cuckoo Bumble Bee - Montana Field Guide
Cuckoo Bumblebee What Are They & How To Identify Them?
Diversification Pattern of the Widespread Holarctic Cuckoo Bumble Bee, Bombus flavidus (Hymenoptera: Apidae): The East Side Story
Building a Strong Community: A Key Step in Entomology Student Life
COSEWIC Assessment and Status Report on the Gypsy Cuckoo Bumble Bee (Bombus bohemicus) in Canada - 2014
Ecology and Evolution of Cuckoo Bumble Bees
Insect Systematics and Diversity Archives - Page 3 of 6 - Entomology Today