THE INSECTLIBRARY FIELD GUIDES
Luna MothIdentification, facts & practical guidance
The luna moth is Actias luna, a North American silk moth recognized by green wings and long hindwing tails.
Compiled by the InsectLibrary Team · Updated · Editorial policy
At a glance
- Family
- Saturniidae
- Order
- Lepidoptera
- Guide scope
- Actias luna
- Species in this guide
- 1
The directory is not a complete species checklist. Photos below are labeled by their recorded scientific names.
Identification and lookalikes

Look for an eyespot on each wing and long trailing tips on the hindwings. Caterpillars look completely different: they are green with small raised spots and pale markings. A photograph of another green silk-moth caterpillar is not sufficient evidence of Actias luna.
Life stages and food
The caterpillar feeds on tree foliage, while adults do not feed. Host plants vary by region. Glover’s silkmoth and polyphemus moth are different species, despite belonging to the same family.
What to do next
Photograph the moth without touching its wings. For caterpillar identification, include the host plant and location. Leave it on the plant where it was found unless it is in immediate danger.
Luna Moth: species profile
Explore the species profile covered by this guide, with recorded names and available photos.
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Sources and further reading
- mdc.mo.gov - luna mothhttps://mdc.mo.gov/discover-nature/field-guide/luna-moth
References support the subject discussed here; they do not certify every imported directory record. Regional sources describe their own locations. Read our source and correction policy.

