Orange Slub Caterpillar

Natural Habitat

Deciduous forests and woodlands throughout Eastern North America

Diet & Feeding

Generalist feeder on leaves of deciduous trees including oak, maple, willow, and cherry

Behavior Patterns

The larvae move with a slug-like gliding motion rather than using prolegs; they typically remain on the undersides of leaves to avoid detection.

Risks & Benefits

Possesses urticating (stinging) spines that can cause painful skin irritation and rashes upon contact with humans; provides a food source for specialized predatory wasps.

Identified on: 1/7/2026