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North American Luna Moth
Actias luna
- KingdomAnimalia (Animals)
- PhylumArthropoda (Arthropods)
- ClassInsecta (Insects)
- OrderLepidoptera (Butterflies and Moths)
- FamilySaturniidae (Emperor and Giant Silk Moths)
- GenusActias (Moon Moths)
- SpeciesActias luna (North American Luna Moth)
In 3 days ~10%
5 Verified sightings at Toronto
688 In all 6 parks From 2019 to 2026
June Best month
☀️ Diurnal When it's spotted
About the North American Luna Moth
The luna moth (Actias luna), also called the American moon moth, is a Nearctic moth in the family Saturniidae, subfamily Saturniinae, a group commonly named the giant silk moths. The moth has lime-green wings and a white body. Its caterpillars are also green. Its typical wingspan is roughly 114 mm (4.5 in), but wingspans can exceed 178 mm (7.0 in), ranking the species as one of the larger moths found in North America.
Across Canada, it has one generation per year, with the winged adults appearing in late May or early June, whereas farther south it will have two or even three generations per year, the first appearance as early as March in southern parts of the United States.
As defense mechanisms, larvae emit clicks as a warning and can also regurgitate intestinal contents, confirmed as having a deterrent effect on a variety of predators. The elongated tails of the hindwings are thought to confuse the echolocation detection used by predatory bats.
A parasitoid fly deliberately introduced to North America as a biological pest control for the invasive species spongy moth (also known as gypsy moth) appears to have had a negative impact on luna moths and other native moths. Wikipedia →
Recent sightings of North American Luna Moth in Toronto
LIVEiNaturalistGlobal Distribution
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Isle Royale National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 3 | Congaree National Park | 🇺🇸 United States | |
| 4 | Acadia National Park | 🇺🇸 United States | |
| 5 | Shenandoah National Park | 🇺🇸 United States | |
| 6 | Cape Breton Highlands National Park | 🇨🇦 Canada |
Cities Where Found
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Orlando | 🇺🇸 United States | |
| 4 | Philadelphia | 🇺🇸 United States | |
| 5 | Austin | 🇺🇸 United States | |
| 6 | Dallas | 🇺🇸 United States | |
| 7 | Houston | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Chicago | 🇺🇸 United States | |
| 10 | Boston | 🇺🇸 United States |
Closest Relatives at Toronto
Before you go
What are the chances of seeing a North American Luna Moth in Toronto?
Rare
Under 5% of wildlife watchers report a North American Luna Moth sighting in Toronto on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 1544th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
When is the best time to see a North American Luna Moth in Toronto?
Any time of year
In every month with enough records, under 5% of wildlife watchers report a North American Luna Moth in Toronto on a given day, so our monthly data shows no clear season.
What time of day is best to see a North American Luna Moth?
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most North American Luna Moth sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Toronto the best place to see a North American Luna Moth?
12th of 12
Of the 12 cities where we can rate North American Luna Moth sightings, Toronto ranks 12th at under 5%. The best odds are in Washington (United States, about 10%), Baltimore (United States, about 10%) and Orlando (United States, about 10%).
Which relatives of the North American Luna Moth live in Toronto?
Same family: Saturniidae
The closest relatives of the North American Luna Moth that you can see in Toronto (family Saturniidae, Emperor and Giant Silk Moths) are Polyphemus Moth (about 10%) and Cecropia Moth (about 10%), with each one's daily chance of a sighting.
Where does the North American Luna Moth sighting chance come from?
GBIF citizen-science records
It is estimated from how often the North American Luna Moth is recorded against all the insects logged in Toronto (5 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
