Colias occidentalis

Colias occidentalis, the western sulphur or golden sulphur, is a butterfly in the family Pieridae found in North America. Its range includes the Pacific Northwest and parts of British Columbia.[1]

Western sulphur
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Pieridae
Genus: Colias
Species:
C. occidentalis
Binomial name
Colias occidentalis
Scudder, 1862
Synonyms

Eurymus occidentalis Dyar, 1903

Flight period is from late May until early July.[1] Its habitats include ocean bluffs, forest openings, mountain slopes, and subalpine meadows.[2]

Wingspan is from 50 millimetres (2.0 in) to 53 millimetres (2.1 in).[1]

Larvae feed on Vicia spp., Lupinus spp., Lathyrus spp., and Thermopsis spp.[1][3]

Subspecies

Listed alphabetically.[3]

  • C. o. chrysomelas H. Edwards, 1877 (California, Oregon)
  • C. o. occidentalis (British Columbia, Washington, Oregon)
  • C. o. sullivani Hammond & McCorkle, 2003 (Oregon)

References
  1. Western Sulphur, Butterflies of Canada
  2. "Colias occidentalis". explorer.natureserve.org. Retrieved 2022-02-12.
  3. Colias at Markku Savela's Lepidoptera and Some Other Life Forms
Wikispecies has information related to Colias occidentalis.
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