I've captured an even larger Pseudomyrmex ejectus colony from that same maple tree. It is possible that the two colonies are related, and I may try merging them at some point. I tried introducing one of the Pseudomyrmex leptosus alates to the colony to see what their reaction would be, and after a few minutes of her darting around and dodging them, she was finally caught, stung repeatedly, and torn apart. So, I just gave the leptosus 'colony' some ejectus brood, and they accepted it and started tending to it.
One of the Pheidole bicarinata queens has died.
Both of the Pheidole navigans queens have laid eggs!
The Solenopsis invicta queens have tons of brood, some in the later stages of larval development. There should be pupa within the next few days. I'm expecting that by the time I put my other colonies away for hibernation, they should have around 15 or so workers, and as RIFA don't need hibernation, they may have upwards of 100 workers by the time the other colonies come out.
I took the humidity gauge containing the Pseudomyrmex pallidus colony out of the container, placed it into a Petri dish, and opened it. The colony is getting bigger, with tons of brood in all stages.