I recently adopted a colony of Crematogaster missuriensis that my wife brought into the house on accident. We were out collecting small dead branches for a project she was working on and the colony was in one of them, or at least part of it was. I have about 60 workers and two queens. They are fairly small, yellow and seem to be nocturnal, however, if I put food in the formicarium, they recruit to it quickly no matter if light is abundant or not.
I have a question concerning their colony starting methods. Do they have winged alates? I see several queen pupae forming from the brood. Do they have nuptial flights? I ask because I have never found alates in the colonies I have discovered, however, they generally have multiple queens. For example, one colony had around fifteen queens.