Do bumblebees hibernate?
Bumble bees do not maintain colonies throughout the winter. Instead, the last brood of the summer colony will contain a number of queens. Each of these queens will mate and then find a safe nesting place in which to spend the winter. ... Only the queen bumble bees hibernate until spring.

Reference:
Bumble bees hibernate, honey bees do not - Honey Bee Suite
Aug 6, 2019