What's the name of the biggest bee in the world?

Japanese bumblebee is the largest wasp in the world. Bees, other bumblebees and bigger insects like mantis are not as good as Japanese bumblebees. The Japanese bumblebee is absolutely cruel to the enemy. Their acupuncture is extremely long, reaching 6.35 mm, and the venom discharged is a highly corrosive enzyme, which can decompose human tissues and is known as the "bumblebee from hell". Recently, National Geographic magazine reported the living conditions of bumblebees in Japan.