von mati » 27. Mai 2014 17:58
Did you feed anything with a similar abdomen and could it be leftovers from the feast?
I had the same fear once, only to remember I had fed the colony a fly I'd caught in the kitchen some time before. Since I hardly ever feed flies, I didn't think of this. (Still, I was more than happy to later actually see my queen in good health.)
Best of luck for yours!