Image Credit: TJ Gehling
Identification: Upper side is black with white median bands on both wings; tip of forewing is orange-brown. Underside is reddish-brown with white markings.
Wing Span: 2 - 2 5/8 inches (5.1 - 6.7 cm).
Caterpillar Hosts: Wild cherry (Prunus), willows (Salix), poplar and cottonwood (Populus), and orchard trees.
Adult Food: Flower nectar from plants including California buckeye, yerba santa, and privet; bird droppings; and dung.
Habitat: Forest edges, mountain canyons, orchards, parks, stream sides, fencerows and groves of cottonwood and poplar
http://www.butterfliesandmoths.org/species/Limenitis-lorquini