Sheridan's Green-Hairstreak (Callophrys sheridani [W. H. Edwards])
Wing span: 7/8 - 1 1/8 inches (2.2 - 2.9 cm).
Identification: Upperside dark gray-brown. Underside ranges from bright green to dark gray-green; lower part of forewing gray. Postmedian line of white dots may be straight or bulged out, reduced, or lacking.
Life history: Males perch to watch for females in depressions or gulch bottoms. Females lay eggs singly on host plant leaves. Caterpillars eat leaves, although some prefer flowers and young fruits. Chrysalids hibernate.
Flight: One flight from March-June.
Caterpillar hosts: Various species of wild buckwheat (Eriogonum).
Adult food: Flower nectar.
Habitat: Sagebrush scrub, chaparral, woodlands, subalpine scree.
Range: Southern British Columbia east to Alberta; south through eastern Washington to Sierra Nevada of California; southeast along Rocky Mountains to New Mexico.
