Brood cells for drones are larger than those for female worker bees. The only brood cell larger than these is that of a queen. Those queen cells in the picture front have been started, but are not yet populated by an egg.
cells for drones and queens
Brood cells for drones are larger than those for female worker bees. The only brood cell larger than these is that of a queen. Those queen cells in the picture front have been started, but are not yet populated by an egg.