Size: 1.0 - 1.25 inches wingspan
Key ID features: Above both sexes gray-brown. Below shades of dark brown. Light white median line, stronger on FW, with strong "frosted" look between HW median line and HW margin. No tails.
Similar species: Moss's Elfin lacks strong frosted look between trailing margin and postmedian line.
Hostplant: Kinnikinnick (Arctostaphylos uva-ursi).
Habitat: Open rocky areas in mountains, coastal bluffs and dunes, forest roadsides, always close to Kinnikinnick.
Range: Isolated populations in Blue Mtns, coastal Lincoln and Curry counties, and in Linn, Morrow and Wallowa counties.
Season: Late April to late May
Conservation Status: Coastal subspecies C. polios maritima is imperiled in OR