Size: Up to 2.25 inch wingspan
Key ID features: Quite variable. Above black with red and ivory spots, marginal band of red spots, sometimes absent on HW. On HW above submarginal row of small ivory spots. On HW below bands of ivory and red spots edged in black, crossed by black veins. Pattern of bands (starting at margin) is red-white-red-white-white.
Similar species: Edith's checkerspot has red-white-red-red-white band pattern on HW below (starting at margin). Chalcedona Checkerspot has larger and paler ivory spots in submarginal row on HW above.
Host plant: Snowberry species (Symphoricarpos), including S. albus, and members of the figwort family, including penstemons, paintbrushes, and honeysuckle.
Habitat: Mountain meadows, riparian areas, open woodlands, roadsides.
Range: Cascade Range, Siskiyou Mtns, Warner Mtns, Ochoco Mtns, Blue Mtns.
Season: Late April to late August
Conservation Status: Secure