Bug Identifier
Tussock Moth Caterpillar
Community identification

Tussock Moth Caterpillar

Orgyia leucostigma (approximate)

Order & Family
Lepidoptera: Erebidae
Size
1 to 1.5 inches (25 to 38 mm)
See this bug in the Encyclopedia

Natural Habitat

Deciduous forests, parks, and suburban gardens throughout North America.

Diet & Feeding

Generalist feeder; consumes leaves of various trees including oak, cherry, birch, and apple.

Behavior Patterns

Loses defensive hairs when threatened. They undergo multiple molts before spinning a cocoon to pupate.

Risks & Benefits

The hairs can cause contact dermatitis or skin irritation in humans; they are considered a minor forest pest.