
Community identification
Yellow woolly bear (banded woolly bear caterpillar)
Spilosoma virginica
- Order & Family
- Lepidoptera; family Erebidae
- Size
- Larvae typically reach 35–50 mm (1.4–2 in) long.
Natural Habitat
Found in meadows, woodland edges, gardens, and leaf litter across much of North America.
Diet & Feeding
Caterpillars feed on many herbaceous plants, including grasses, asters, clover, and garden plants; adults do not feed extensively.
Behavior Patterns
The densely hairy larva often wanders openly while searching for food or a pupation site, especially in autumn. It overwinters as a larva or pupa and later emerges as a white moth with dark spots.
Risks & Benefits
Its hairs are generally non-venomous but may cause mild skin or eye irritation in sensitive people. It is harmless to people, supports insect-eating wildlife, and contributes to plant decomposition and food webs.