
Community identification
White-marked tussock moth caterpillar
Orgyia leucostigma
- Order & Family
- Lepidoptera; Erebidae (subfamily Lymantriinae)
- Size
- Larvae typically grow to about 25–35 mm long.
Natural Habitat
Woodlands, parks, and gardens across much of eastern North America; larvae feed on trees and shrubs.
Diet & Feeding
Caterpillars eat leaves from many deciduous trees and shrubs, including oak, maple, and birch.
Behavior Patterns
The caterpillar has conspicuous pale hairs and dark dorsal tufts; it wanders while searching for a place to pupate. Adults are short-lived moths, and females are wingless.
Risks & Benefits
Its hairs can cause skin irritation or an allergic rash, so avoid handling it. Larvae are part of the food web but can defoliate trees when abundant.