Bumble Bees of Alaska: A Field Guide (U.S. National Park Service)

Bumble bees in the last frontier

Pin van bekaert lieve op butterflies- bees - insects

Western Bumble Bee and Native Pollinator Research

How many species of native bees are in the United States?

Shiny and Black: The Hidden Secret of Bumblebees

Highlights - PNW Bumble Bee Atlas

Bumble Bee Atlas U.S. Fish & Wildlife Service

Scientists Race to Find Out Why the Western Bumblebee Is Disappearing

The arctic and alpine bumblebees of the subgenus Alpinobombus revised from integrative assessment of species' gene coalescents and morphology (Hymenoptera, Apidae, Bombus )