Why is the bald faced hornet black and white?

The bald-faced hornet is black and white primarily as a form of warning coloration, signaling to potential predators that it is capable of delivering a painful sting. This distinctive coloration helps it stand out in its natural environment, deterring other animals from approaching. Additionally, the contrast of black and white may play a role in social signaling among hornets themselves. Overall, this coloration serves both protective and communicative functions in their behavior and ecology.