von NuEM » 31. Aug 2006 22:54
A few years ago, it was in late september or early october, I found a Lasius niger queen running around on the street. I put her in the usual test-tube, but she wouldn't lay any eggs. Since it was late in the year I decided to try and get her into hibernation, which worked pretty well. A few month later, in spring time I put her back into the warm. She would then start laying eggs, and successfully founded a new colony.
I'm not saying this is what happens with your queen, just something I experienced.