Well, I better make a journal for this colony. I wasn't sure I wanted to keep it at first, but this is the most successful Formica colony I have had so far (and I have kept lots of Formica).
I caught a lone queen on flight in Fairmont, BC on June 24, 2014.
This colony went into hibernation shortly after the pupae in the pictures above eclosed. They came out in February 2015.
They were beginning to outgrow the formicarium.
A friend sent me one of the AntCanada small omni nests for free. None of the Formica I ever kept were happy with plain acrylic. So I altered it.
I do not trust the foam to keep the ants from digging through it. I siliconed steel mesh on the hydration holes.
On one side I just had the mesh and a gap between the mesh and the freshly poured grout. On the other side I had small strips of chamois cloth to seep hydration from the foam into the grout chambers on this side. The grout on the two sides was not connected. I will be curious to see which side the ants prefer long term.
Took a bit of encouragement, but they all moved after a couple of days (July 20, 2015 all were in).