I believe the Camponotus I got from Drew are this species. I noticed that lately they haven't been taking the brood out near the heat lamp as they've been doing a few weeks earlier, which I'm assuming is a sign of nearing hibernation (there's one larva which hasn't grown much, but maybe it's just slow and a few eggs).
My plan is to wrap them up in a towel, leaving space for ventilation, and putting them in a shaded spot on my patio where it gets down to the 50's and 40's overnight. Hopefully that will give them the opportunity to rest without freezing.
Camponotus vicinus, Crematogaster 1, Crematogaster 2, Formica francoeuri, *, *, Myrmecocystus testaceus, Novomessor cockerelli, Pheidole hyatti, Pogonomyrmex californicus, Pogonomyrmex rugosus, Solenopsis invicta