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Western Sulphur
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.
The one flight period is from late May until early July. Its habitats include ocean bluffs, forest openings, mountain slopes, and subalpine meadows.
From the article Colias occidentalis on Wikipedia (CC BY-SA), quoted section by section
Description
The golden sulphur is large and yellow with a single white spot on the hindwing surrounded by a red ring. There is rarely a satellite spot. Its wingspan ranges from 50 millimetres (2.0 in) to 53 millimetres (2.1 in). Males do not reflect ultraviolet. Females have a rare white morph (alba).
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Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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Every page naming Colias occidentalis in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 122368.