California Tortoiseshell at Big Bear, October 23, 2005.

Same Nymphalis californica, the California Tortoiseshell. The abundance of their host plant - Ceanothus - helps explain their abundance many years.

Ventral of the California Tortoiseshell on the Mt Waterman Trail in the San Gabriels. June 25, 2006.

California Tortoiseshell larva on host Ceanothus in the San Gabriels below Sunset Peak. May 1, 2011.