Location: O'Neill Regional Park, Orange County, California.
Habitat: Oak forest.
Coloration, hue and pattern: Dark red head, brownish red thorax, brownish yellow legs and front half of gaster, and black rear half of gaster.
Length: 10mm.
I found this queen walking on the trunk of a tree Friday night (5-3-2013) during a heatwave. So far, she hasn't laid any eggs, and she keeps pulling the cotton in her tube all over the place.
Edit: This queen has now laid a few eggs.