So, we know that queens are the largest caste of bees in the hive, although some drones are larger than some queens. Per The Beekeeper’s Handbook, 5th ed., 2021, Diana Sammataro & Alphonse Avitabile, queens range in size from 178 to 292 mg at emergence from the queen cell. That's quite a range in size, and maybe after mating and abdominal distension with full development and full utilization of egglaying apparatus, they could weigh even more!
- eliochel