Queen Alexandra’s Sulphur
Colias alexandra W. H. Edwards, 1863
Status: Uncommon/rare resident
NENHP Ranking: S3, Tier 2
Range: The western half of sub-arctic Canada south through the mountain and intermountain west of the United States to central California, Arizona and New Mexico. In Nebraska it is found in the western panhandle counties.
Broods/Flight Times: Double brooded in Nebraska with records from 24 May – 18 August.
Larval Hostplant(s): Herbaceous legumes including Astragalus, Lathyrus, Lotus, Lupinus, Medicago, Oxytropis, Thermopsis, Trifolium, and Vicia species. Golden Pea (Thermopsis rhombifolia) is thought to be the primary hostplant in Nebraska.
Habitat: C. alexandra inhabits open coniferous woodlands and creekbottoms in Pine Ridge habitats in western Nebraska.
Found at: Gilbert-Baker SWMA, Sowbelly Canyon (Sioux County), Panorama Point (Kimball County)
Overwintering: As a larva
Similar Species: Clouded and Orange Sulphurs.