Stella Orangetip (Anthocharis stella W.H. Edwards)
Wing span: 1 - 1 3/8 inches (2.6 - 3.6 cm).
Identification: Male white or creamy-white, female pale yellow. Male with narrow black discal bar not connected to black edging at the lower margin of the orange patch.
Life history: Not known. Males patrol ridges and hillsides.
Flight: One flight from late to mid-August.
Caterpillar hosts: Rock cresses (Arabis) species.
Habitat: Montane forests, sunny hill slopes, and meadows.
Range: Southwestern Canada (British Columbia and Alberta) south through mountainous regions, west to the Sierra Nevadas and northern Utah, Wyoming, and South Dakota.
