AKA Skinner's Sulphur
Size: 1.25 - 1.5 inches wingspan
Key ID features: Smallish. Above lemon yellow, with solid dark brown to black borders. Below, HW dusted with black overscaling, giving olive cast. On HW below, discal spot small, thickly-rimmed in rose or reddish brown. Pink wing fringes.
Similar species: Clouded Sulphurs have double ring around discal spot on HW below. Western Sulphurs greenish on HW below. Pink-edged Sulphurs have more rounded wings, lack black overscaling below and have brighter pink wing borders.
Host plant: Various species of Vaccinium (huckleberry).
Habitat: High forest clearings and moist meadows with Vaccinium.
Range: In Oregon, only found in Wallowa Mtns and on Steens Mtn.
Season: Late June to early-September
Conservation Status: Secure