
Community identification
Io Moth
Automeris io
- Order & Family
- Lepidoptera, Saturniidae
- Size
- Wingspan typically ranges from 2.5 to 3.5 inches (6.3 to 8.8 cm).
Natural Habitat
Deciduous forests, open woodlands, meadows, and suburban areas throughout eastern North America.
Diet & Feeding
Adults do not eat as they have vestigial mouthparts; caterpillars feed on a wide variety of host plants including oak, willow, maple, and cherry.
Behavior Patterns
Nocturnal; they use large eyespots on their hindwings as a startle defense against predators. They have a complete metamorphosis life cycle.
Risks & Benefits
Caterpillars possess venomous stinging spines that cause painful reactions in humans; adults are high-value pollinators and food sources for bats and birds.