
Community identification
Luna moth caterpillar
Actias luna
- Order & Family
- Lepidoptera; Saturniidae
- Size
- Usually 55–75 mm (2.2–3 in) long when fully grown.
Natural Habitat
Deciduous forests, woodland edges, gardens, and shrublands across eastern North America. Larvae feed on trees such as walnut, hickory, birch, and persimmon.
Diet & Feeding
The caterpillar chews leaves from several hardwood species. Adults do not feed; they rely on stored energy and live only about a week.
Behavior Patterns
Solitary and mostly foliage-dwelling, with a green body, yellow stripes, and sparse spines. When mature, it leaves the host plant to spin a cocoon among leaf litter; adults are nocturnal.
Risks & Benefits
Harmless to people and plants at ordinary densities; its spines do not deliver a significant sting. It is an important food source for predators and contributes to forest nutrient cycling.