The Browntail Moth Caterpillar is the larval stage of the invasive browntail moth (Euproctis chrysorrhoea). These caterpillars are known for the toxic hairs that cover their bodies. Contact with these hairs can cause skin irritation and respiratory discomfort in humans.
Quick Facts
- Family: Erebidae
- Habitat: Trees and shrubs
- Diet: Leaves of hardwood trees
- Status: Invasive pest
Identification
Browntail caterpillars are dark brown with white stripes along their bodies. Two distinctive red-orange spots appear near the tail end. Their bodies are covered with tiny toxic hairs.
Distribution
The species is primarily found in parts of the northeastern United States, particularly Maine and coastal regions.
Life Cycle
The life cycle includes egg, caterpillar, pupa, and adult moth stages. Caterpillars overwinter in webs and resume feeding in spring.
Pest Status
The caterpillars can defoliate trees and shrubs while also causing skin irritation to people who come into contact with the hairs.
Prevention
- Remove winter webs from trees
- Avoid handling caterpillars directly
- Wear protective clothing during removal
Control
Early removal of overwintering webs is the most effective control method.