Clouded Sulphur

Scientific Name: Colias philodice

Order & Family: Order: Lepidoptera, Family: Pieridae

Size: 3.8 to 7 cm (approx. 1.5 to 2.75 inches)

Clouded Sulphur

Natural Habitat

Open areas including fields, lawns, meadows, gardens, and roadsides throughout North America.

Diet & Feeding

Adults feed on flower nectar from various plants including dandelion and milkweed; larvae feed on legumes like clover, vetch, and alfalfa.

Behavior Patterns

Active from spring to late fall; males engage in 'puddling' at damp soil to obtain minerals. They have multiple generations per year and overwinter as caterpillars.

Risks & Benefits

Benefits the ecosystem as an important pollinator; larvae can sometimes be minor agricultural pests in alfalfa fields, but they pose no risk to humans.

Identified on: 5/31/2026