Speyeria coronis hennei
'Henne's' Coronis Fritillary
Speyeria coronis hennei is not widespread; it flies at Mt. Piños, Frazier Park/Mountain, Mt. Abel, and the Tehachapis, according to Ken Davenport. It's easily confused with Speyeria callippe macaria, which it flies with most of the time on Mt. Piños, the only place I know it from.
This is Speyeria coronis hennei, from Mt. Piños, August 7, 2007. These are relatively scarce, and I have a hard time separating these from callippe, but I'm confident about this identification because the late record for callippe macaria is August 3rd and coronis hennei flies well into September. And this one was pretty fresh.