European wool carder bees (Anthidium manicatum) are aggressive but likable bully bees that attack honey bees and bumble bees but also do a lot of pollinating.
Boisterous Wool Carder Bees – Grantham Ecology
European wool carder bee College of Agricultural Sciences
Wool Carder Bees The World's Best Gardening Blog
Wool Carder Bee – back in the Botanics for a fifth season – Botanics Stories
Carder Bees
Wool Carder Bee
Fibers, forage, and fighting: the frantic life of woolcarder bees
Bees — OREGON BEE PROJECT
367 Wool Carder Bee Images, Stock Photos, 3D objects, & Vectors