With the arrival of warmer weather, queen bumblebees regain strength after wintering by feeding on the nectar of primroses. Then they will begin to look for places for future nests, which will insulate them, prepare food for future offspring, build the first wax cells and lay eggs. The first larvae, from which workers develop, are also fed by the queen, who has carefully prepared honey in a special wax cell.

Queen bumblebees of most types of bumblebees lay 10-20 eggs in one cell; in the future, worker bumblebees will take care of the nest and food supplies. A bumblebee family lives for one season; at the end of summer, young queens fly out of their nests and meet with males. It is the young queens that will give rise to new nests, subject to a successful wintering. Workers and males die by the end of summer.

It should be clarified that the female independently arranges a new nest in early spring. If a sharp cold snap occurs, it is able to warm itself by intensively working its wings. This increases the bumblebee’s body temperature by several degrees. During prolonged cold spells in spring, females may fall into temporary torpor.