My only experience with these ants was looking at them on antwiki andi t said that reproductives are rare.
Once you find an area where they have optimum conditions they can be super abundant. Here in East Tennessee along the Blue Ridge in rocky areas with lots of duff you can look under the duff and find a colony about every three looks, I have at times found 3+ colonies under one duff layer. These conditions are very conducive for their primary prey, small centipedes.