I put an empty frame in the middle of the broodnest and the bees built a full frame of drone comb. I removed it yesterday before the drones hatched and examined a lot of the brood. About 20% had one mite each on them.
I know the adult female enters the cell before it is capped. She then lays eggs on the pupa and they hatch. When I pull a pupa in the purple eye stage out and I find one mite, is this the adult female that entered the cell or is this the result of the eggs she laid? If it is the original adult, when will the eggs appear? If this is the offspring, what happened to the adult (where did she go? Did she die?) and why aren't there more than one mite to make increase for them? Or does she lay eggs and then leave before the cell is capped?
I have never seen this explained.