Queens start as ordinary eggs
A queen honey bee is not born a different kind of bee. The egg that becomes a queen is a fertilized egg, the same kind that can become a worker. The difference comes from what the worker bees do afterward: they choose a larva, build or modify a cell for it, and feed it in a particular way.
Fertilized eggs develop into females. Unfertilized eggs develop into drones, which are male. So a queen always begins as a fertilized female egg.
Why royal jelly matters
All young larvae receive a glandular secretion from nurse bees at first. Worker larvae are soon switched to a diet that includes pollen and honey. A larva being raised as a queen continues to receive a generous supply of royal jelly, and keeps it throughout larval development. Researchers have linked this diet to changes in gene activity that lead to a larger body and fully developed ovaries, although the exact mechanisms are still studied.
This is also the short answer to “how do bees know who is a queen”: it is largely the workers’ feeding and building choices, not a trait the larva was born with.
The queen cell
Queen cells are larger than normal worker cells and usually hang vertically from comb, often described as peanut-shaped. A larva inside is fed heavily and is later capped with wax by the workers.
Development timeline
Approximate day counts, counted from when the egg is laid, are commonly given as:
- Egg stage: about 3 days
- Larval stage: until about day 8, when the cell is capped
- Pupal stage inside the capped cell
- Adult queen emerges around day 16
Workers take around 21 days and drones around 24 days, so a queen finishes development earlier. These numbers can vary a little with temperature and conditions. For a broader timeline that carries on into adulthood, see the life cycle of a queen bee.
Three reasons workers raise queens
- Swarming: before a colony divides (see swarm cells), workers build queen cells so that the colony left behind will have a new queen.
- Supersedure: workers replace a queen that is failing or aging.
- Emergency: workers modify cells with young larvae after the queen is suddenly lost.
Beekeepers sometimes tell these apart by number and position of cells, though the signs are not perfectly reliable. Many cells along the lower edge of frames may suggest swarming preparations, while one or two cells on the face of the comb may suggest supersedure. Treat these as clues, not conclusions.
Emergence and virgin queens
When she is ready, the new queen chews her way out of the cell. A virgin queen may make piping sounds, and she may seek out and attack rival queens still in their cells. If a colony is preparing to swarm, workers may protect cells so that additional queens can leave with afterswarms.
Mating flights
After a few days, the virgin queen takes mating flights and mates in the air with multiple drones. She stores their sperm and begins laying later, usually within a few days to a couple of weeks after mating. If bad weather or a lack of drones prevents mating, she may not become a normal laying queen; how to tell if a queen has mated explains what to look for.
Common questions
How does a queen bee reproduce? She mates with several drones on flights and stores the sperm, which she uses to fertilize eggs she lays over time.
How many eggs does a queen lay? During peak season, commonly cited figures are in the range of a thousand or more per day.
Is a queen born special? No. Beekeepers use this to raise queens at home. See also the honey bee queen overview and queen vs worker differences.