Is there no such thing as a virgin leaving with a swarm?
sure they do. It is not my experience that they come back when they do.
how long can the colony wait before it will no longer be accepted back into the parent hive
?
There are usually multiple queens in a hive that has virgin queen swarms. I have picked up swarms that had more than one virgin queen in it.
now...if your virgin takes a swarm away and there is no queen left in the hive, and no resources to make one....you might be in trouble.
So, I think the real question is not how long can the hive wait until that virgin swarm comes back, but is/are there a queen, queen cells, or eggs in the hive from which she swarmed?
Have I successfully muddied up the waters?