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Harford's sulphur
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Pieridae
Genus:	Colias
Species:	C. harfordii
Binomial name
Colias harfordii H. Edwards, 1877
Synonyms
Colias barbara H. Edwards, 1877 Eurymus hartfordii ab. weaverae Gunder, 1924 Eurymus harfordii f. martini Gunder, 1931

Colias harfordii, the Harford's sulphur, is a butterfly in the family Pieridae. It is found from the southern California coastal ranges and canyons from Kern County south to San Diego County. The habitat consists of open chaparral and woodland clearings.

The wingspan is 44–51 mm (1.7–2.0 in). Adults are on wing from February to May and again from June to August in two generations per year. Adults feed on flower nectar of thistles and mints.

The larvae feed on the leaves of Astragalus douglasii. The species overwinters in the larval stage.

References

1. Savela, Markku. "Colias harfordii H. Edwards, 1877". Lepidoptera and Some Other Life Forms. Retrieved January 14, 2018.
2. ^ Butterflies and Moths of North America

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• Lepidoptera of the United States
• Taxa named by Henry Edwards
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