Cloudless Sulphur
Scientific Name: Phoebis sennae
Order & Family: Lepidoptera: Pieridae
Size: Wingspan of 6 cm to 8 cm (2.4 to 3.1 inches)

Natural Habitat
Open spaces such as gardens, pastures, roadsides, and coastal beaches throughout the Americas
Diet & Feeding
Caterpillars feed on various Senna and Partridge Pea species; adults feed on nectar from tube-shaped flowers like Lantana and Bougainvillea
Behavior Patterns
Adults are fast, powerful fliers often seen migrating southward in massive numbers across the Southern United States during the late summer and fall
Risks & Benefits
Benefits the ecosystem as an important pollinator; caterpillars can occasionally defoliate ornamental Cassia plants but generally do not cause significant damage
Identified on: 3/13/2026