You guys should look up video of how they eat! IIRC, their lower jaw is the only one with teeth and they disarticulate it in a manner that looks like a front end loader scooping up soil. They also "musk" a pheromone that is calming to ants, which allows them to raid the nest for pupae.
You should have
Rena (Leptotyphlops) humilis - western blind snake in the PHX area. I'm not near any of my guides so I forget what their key is (it's scalation around the eyes. It i forget what count). This is one from NM with clear view of ocular scales for IDing.
They're simple snakes to keep. I've had luck with them and Brahminy thread snakes kept in coco fiber and fed termite pupae. I kept them in large restaurant store deli cups that I had to punch vent holes in; kept the brahminy thread for over a year before it somehow got out.