A male Mylitta Crescent, Phyciodes mylitta, Siberia Creek Trail near Big Bear, October 22, 2005.
Another Mylitta Crescent, probably a female. Sugarloaf Trailhead, Big Bear, May 25, 2007. The median band is paler on females.
Mylitta Crescent at Lake Cuyamaca, August 25, 2007.
I found this and several other caterpillars on thistle along Keen Camp Summit Road in the San Jacinto Mountains. May 15, 2022.
A pupa (and one behind it) on a thistle leaf. May 10, 2020.