Honeybees come in two sexes, male and female, as well as two female castes. Workers, who are sterile diploid female bees and fertile diploid female bees are queens, who are fertile diploid female bees larger than workers, are the two female castes. Male honey bees, often known as drones, are larger than females and only appear in the early summer. The drones are stingless, whereas the workers and queens have stingers.The spermatheca is a structure that queen honey bees use to store sperm and control the fertilisation of their eggs. As a result, queens might lay fertile or unfertilised eggs. Drones originate from unfertilised eggs, whereas fertilised eggs develop into females, which might be workers or virgin queens. Queen cells, which are larger than conventional vertical cells in the honeycomb, are where eggs destined to become queens are laid.