Catch'Um binoculars logoCatch’Um
Luna Moth (Actias luna) wildlife photograph

Field guide · rare

Luna Moth

Pale green night silk moth — long tails, moon-eye spots, fleeting adult life.

Least Concern

Actias luna

Overview

Luna moths are large North American silk moths with lime-green wings, long hindwing tails, and translucent eyespots. Adults lack working mouthparts and live only about a week, emerging to mate after caterpillars feed on hardwood leaves.

For US collectors, the luna moth is a rare night jewel — ghostly green flash at porch lights, eastern forests, and a bucket-list moth for summer nights.

Habitat

  • Deciduous forest
  • Hardwood edge
  • Woodland garden
  • Night canopy

Deciduous hardwood forests of eastern North America where host trees such as walnut, hickory, sweetgum, and birch grow; adults appear near woodland edges and lights.

Countries found

Field notes

Field scale for the Luna Moth: length around Wingspan 8-11.5 cm. Typical lifespan: Adults about 7 days; full life cycle weeks to months.

When you are scanning habitat, prioritise deciduous forest, hardwood edge, woodland garden, and night canopy. Those settings are where a clean look and a usable photo are most likely.

Quick ID anchor: Large lime-green moth with long twisted tails and eyespots on fore- and hindwings. Confirm with behaviour and habitat before you log the discovery.

Diet

Adults have no functional mouthparts and do not feed.

Larvae eat leaves of walnut, hickory, persimmon, sweetgum, birch, and related hardwoods.

Behaviour

Nocturnal adults fly to find mates using female pheromones.

Rest with wings flat by day; briefly active for a few nights after emerging.

How to identify

Large lime-green moth with long twisted tails and eyespots on fore- and hindwings.

Furred white body and feathery antennae; males have broader antennae than females.

Interesting facts

  1. 01

    Pale green wings with long curving hindwing tails.

  2. 02

    Eyespots on each wing may deflect bird attacks.

  3. 03

    Adults do not feed — they live roughly a week to mate.

  4. 04

    Caterpillars are bright green and feed on hardwood leaves.

  5. 05

    Attracted to lights on warm summer nights.

  6. 06

    One of eastern North America’s most iconic giant silk moths.

Conservation status

LC: Least Concern

Luna moths are not globally threatened and are generally considered secure, though local declines are linked to habitat loss, light pollution, and parasitoid flies introduced for gypsy moth control.

Sources: IUCN Red List

Keep exploring

Where it lives

Related discoveries

Free on iOS

Catch the Luna Moth

Spot one in the wild, then scan it in Catch'Um to log your rare discovery.