
Community identification
Sycamore Tussock Moth Caterpillar
Halysidota harrisii
- Order & Family
- Order: Lepidoptera, Family: Erebidae
- Size
- 25 to 35 mm in length
Natural Habitat
Deciduous forests, woodlands, and suburban areas where host trees are present.
Diet & Feeding
Leaves of deciduous trees, primarily sycamore and occasionally maple.
Behavior Patterns
Active during summer months feeding on foliage; larvae form cocoons to overwinter as pupae before emerging as adult moths.
Risks & Benefits
The hairs can cause mild skin irritation or allergic reactions in sensitive individuals if handled. They are a natural part of the forest ecosystem, serving as a food source for birds and other predators.