The Queen - 1 Per Colony
The Queen's main purpose in life is to reproduce. A good Queen will lay around 2,000 eggs per day (which a chicken would take over six years to produce!) The Queen relies on the female worker bees to raise her young. She controls the workers' behaviour by producing pheromones.
The Workers - 10,000 - 50,000 Per Colony
The worker is the smallest bee and is about half the weight of the Queen and drone. The abdomen is pointed and the wings are short. They provide food for grubs, drones and the Queen bee, and they also build the wax honeycomb that forms the hive's integral structure.
In fact, the workers are model bees! They clean, ventilate, defend and repair the hive, and most ingeniously of all, worker bees are experts in air conditioning. They keep the hive at a constant temperature of around 34°C. If the colony is too hot, they douse their bodies in water and bring it into the hive. They then work together to fan the air with their wings. This then brings the temperature down by causing evaporation. In cooler times, they huddle together around the brood of eggs to keep them warm. Workers live for around 36 days in the summer and six months in the winter.
The Drones - 1000 Per Colony
A drone is a male bee. It is about the same size as the Queen but is much more squarely built. His wings completely cover his abdomen and his large round head is distinctive for its two eyes which meet at the top. He has no sting. Male bees appear to have a very easy life. They do not work in the hive, do not forage for food, cannot defend the hive (as they have no sting) and are looked after by the workers who feed them honey. Their one purpose is to mate with the queen, after which they die. They do not survive over winter and any that are left in the hive in the autumn will be escorted out by the workers. Drone bees live for around 22 days in the summer and 59 days in the winter.