Yes. A bumble bee colony's worker bees and queen bees are capable of stinging. Bumble bee colonies are organised around a queen bee, drones (male bees), and worker bees, all of whom can sting. Worker bees are sterile females with the ability to sting due to the evolution of the ovipositor into a stinger. A queen bee's stinger is usually exclusively used to protect herself against other queen bees.