I found a bunch of these Crematogaster queens while running a black light around 10:00 on July 24th 2014, in Trabuco Canyon, California. Some of these removed their wings by the next day, but some left theirs on. The majority of these turned out to be fertile, and they produced fairly quick.
By now many of them have died, and a few have been given away or sold. I now have four colonies of these left, and they're all living in test tubes placed in small test tube-sized foraging containers.