Bumblebees, with large body, long body and high toxicity, used to be known as stinging insects in addition to bees and ants. It is a kind of insect with wide distribution, various species and rapid flight. Hymenoptera wasps have a long powerful sting on their body. When confronted with attack or hostile interference, they will attack in groups, which can cause allergic reaction and toxic reaction. In severe cases, they can lead to death. Wasps usually build nests from soft pulpy wood pulp and feed on animal or plant food.
The Bumblebees have four insect States, namely egg, larva, pupae and adult, which occur in three generations in one year, and the first generation in mid June, the second generation from mid June to early July, the third generation from mid July to mid August, and mate in late October to begin overwintering. Most of the male bees appeared in the third generation, and died after mating, and had a shorter life span. Overwintering male bees have clustering, often group winter, to resist cold.