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Harford's Sulphur
Colias harfordii Hy. Edwards, 1877
Attributes of Colias harfordiiFamily: Whites and Sulphurs (Pieridae) Subfamily: Sulphurs (Coliadinae) Identification: Upper surface of male a rich yellow, wing bases not darkened. Cell spot in front wing is medium-sized and black, often with a white center. Forewing border wide, hindwing border narrower. Cell spot in hindwing not noticeable. Female resembles male but border less well-defined, in some cases reduced or lacking. Life history: Males patrol open areas to find receptive females. Eggs are laid singly on the underside of host plant leaves; caterpillars eat leaves. Larvae hibernate. Flight: Two flights from February-May and from June-August. Wing span: 1 3/4 - 2 inches (4.4 - 5.1 cm). Caterpillar hosts: Rattleweed (Astragalus douglasii) in the pea family (Fabaceae). Adult food: Flower nectar from thistles and mints. Habitat: Open chaparral and woodland clearings. Range: Southern California coastal ranges and canyons from Kern County south to San Diego County. Conservation: Not usually required. NatureServe Global Status: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery. Management needs: Not reported. | Documented Records for Colias harfordii
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