From the NPS PORE website list.
The California Sister (Adelpha californica), sometimes placed in the genus Limenitis), is a butterfly of the family Nymphalidae. The butterfly is named for its black and white markings on the forewing that resemble a nun's habit. It is commonly found on oak trees (on which it lays its eggs) and by water sources where it sips salts from the mud.
The Lorquin's Admiral (Limenitis lorquini) is a butterfly from the Nymphalinae subfamily. The butterfly is named after Pierre Joseph Michel Lorquin, a French naturalist that came to California from France during the Gold Rush and made important discoveries on the natural history of the terrain.