This population of Euchloe hyantis, which the Emmels called "near lotta" in their 1973 book
on So. Cal. Butterflies, was found near Arrastre Creek near Big Bear. April 25, 2008.

Euchloe hyantis near lotta from Arrastre Creek area. April 25, 2008.

Tansy Mustard (Descurainia sp.), on which this female was ovipositing.