I have only seen it once.  After catching a feral swarm into a nuc, the
colony did fine for a couple months until it was time to transfer to a
full size brooder.  During the transfer, a marked queen went running into
the new box followed by an unmarked queen.  Eventually the unmarked queen
killed the marked queen.
        It appears that the hive had two queens coexisting until the point
that the colony was transfered.
 
        Rich
 
On Sun, 2 Nov 1997, Center Research of Natural Resources and Animal A wrote:
> I like be informed about Hive with several Queens,and its condition and
> rearing of two or more queen in one hive.
> please send me some papers about this matter.
> thanks,
> M.Afzali Ph,D
> e-mail  [log in to unmask]
>