Colias meadii

Colias meadii, the Mead's sulphur, is a butterfly in the family Pieridae found in North America. Its range includes the Rocky Mountains in Canada and the United States.^[1][2]

Mead's sulphur
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Pieridae
Genus:	Colias
Species:	C. meadii
Binomial name
Colias meadii W.H. Edwards, 1871
Synonyms
Eurymus meadii Dyar, 1903 Colias elis Strecker, 1885

Flight period is from July to August.^[1] It inhabits arctic-alpine tundra and rocky slopes, in high mountain areas at or near tree lines.^[3]

Wingspan is from 35 to 44 mm.^[1]

Larvae feed on Trifolium spp. Astragalus alpinus, Oxytropis deflexa and Vicia americana.^[1][2] Adults feed on flower nectar from alpine sunflower and asters.^[3]

Subspecies

Listed alphabetically:^[2]

• C. m. elis Strecker, 1885 (Alberta, British Columbia)
• C. m. lemhiensis Curtis & Ferris, 1985 (Idaho, Montana)
• C. m. meadii (Colorado, Utah, New Mexico, Wyoming, Montana)