The vespidae are a family of wasps, including all social wasps and some solitary wasps. Each social wasp colony includes a queen and a number of sterile workers. Colonies dye at the onset of winter after a one year lifespan. New queens and males (drones) are produced towards the end of the summer, and after mating, the queens overwinter in cracks or other sheltered locations. The nests are constructed out of plant fibers, chewed to form a sort of paper.