Approx 3 mm.
Collected at blacklight.
I'm really not sure about the subfamily but feel like it would be a good place to start.
A colony segment found under a rock, no queens or brood visible.
Happy to have seen these guys, I've been wanting to for a while.
Specimen images taken at Arizona State University.
Images:
Minor - profile
Major - profile
Minor - head
Major - head
Minor - dorsal
Major - dorsal
found under a rock, black bodies with white stripes, eggs and winged
Five queen in total where seen. Three were seen at night from 9:00-11:45 PM and two where seen in the morning around 9:00 AM. Most of the queens where found in barren muddy patches with little to no stones or leaves. I assume they have a preference for these types of areas, but it's also possible that their just easier to spot in them. All appeared to be foraging and none were alates.
I suspect that they flew the morning/day before the first queens were seen as that's when I saw (what I assume were) males of this species. It had rained 0.2 inches the day before and 0.3 inches the day of.
Two queens where seen very near to each other on the ground in a small wash at night (see @sirduckington's observation for the other queen here).
This queen, strangely, has a deformed gaster. I'm not sure what would cause this other than a genetic glitch as it doesn't look like it was damaged, and I've personally never seen anything like it, so it's a bit odd to see.
The queen was observed in captivity eating an elongate springtail, as well as hunting and killing a live one.
Very cool to see these and very happy to have found them.