Colias scudderii, the willow sulphur, is a butterfly in the family Pieridae. It is found from Alaska south through the Rocky Mountains to northern New Mexico. The habitat consists of mountain meadows and willow bogs.[2]
| Willow sulphur | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Pieridae |
| Genus: | Colias |
| Species: | C. scudderii
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| Binomial name | |
| Colias scudderii | |
| Synonyms | |
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The wingspan is 38–51 mm (1.5–2.0 in). Adults are on wing from June to August. They feed on flower nectar.[2]
The larvae feed on the leaves of Salix species (including Salix reticulata, Salix lutea and Salix planifolia). Second, third, and fourth instar larvae hibernate.[2]
Subspecies
edit- Colias scudderii scudderii (Colorado, Utah, New Mexico, Wyoming)
- Colias scudderii ruckesi Klots, 1937 (New Mexico)
References
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