Clouded Sulphur

Colias philodice

Appearance: Bright yellow above, some females will be white, with a broad black band along trailing edges of both wings and a black spot on each forewing. Below, both sexes yellow with some pink on edges, hindwing spot usually double, ringed with light brown. Forewing has a black or sometimes light ringed spot. Their flight is direct, but erratic.

Size: Medium; 1 1/2 to 2 1/2 inches

Habitat: Open habitats like cultivated fields, meadows, mountain parks, roadsides and alfalfa fields

Season: May through mid-September

Larval Foodplant: Legumes: white clover, alfalfa, vetches

Did You Know…
Caterpillars hibernate over the winter, but when the adults emerge in the spring, it will take a patient and lucky photographer to catch a Clouded Sulphur at rest with wings spread. Most sulphurs rest with their wings closed.

Species Gallery (click to enlarge)