Appalachian Tiger Swallowtail

Appalachian Tiger Swallowtail

Papilio appalachiensis

Endemic
Daily sighting probability ~10% · With luck
at Great Smoky Mountains National Park

In 3 days ~30% in a week ~60%

51 Verified sightings at Great Smoky Mountains National Park From 2019 to 2026
51 In 1 park
May Best month
☀️ Diurnal When it's spotted

About the Appalachian Tiger Swallowtail

Papilio appalachiensis, the Appalachian tiger swallowtail, is a species of swallowtail butterfly found in eastern North America, particularly in the Appalachian Mountains. It is a hybrid of another two Papilio species, Papilio canadensis and Papilio glaucus, with which it shares many characteristics. The butterflies are normally yellow and contain black patterns in their wings. Their wingspans range from 86 to 115 mm. The caterpillars range in color from green and yellow to orange and are ornamented with black specks that give them the appearance of a bird dropping, which is useful for camouflage, or a large eye, a form of mimicry that is also efficient for protection.

This species is univoltine. Females lay their eggs in May. Papilio appalachiensis is a member of the genus Papilio in the order Lepidoptera. It is closely related to Papilio canadensis and Papilio glaucus. The butterfly is found in the eastern United States, specifically in the Appalachian Mountains, ranging from Pennsylvania to Georgia. It is notably larger than both the eastern tiger swallowtail and the Canadian tiger swallowtail.

P. appalachiensis is thought to have... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Great Smoky Mountains National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing an Appalachian Tiger Swallowtail in Great Smoky Mountains National Park?

With luck

About 10% of wildlife watchers report an Appalachian Tiger Swallowtail sighting in Great Smoky Mountains National Park on a given day, based on 51 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 99th most-seen of the 822 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.

When is the best time to see an Appalachian Tiger Swallowtail in Great Smoky Mountains National Park?

April and May

In those months about 20% of wildlife watchers report an Appalachian Tiger Swallowtail in Great Smoky Mountains National Park on a given day, against under 5% in August to February, the lowest months.

What time of day is best to see an Appalachian Tiger Swallowtail?

Between noon and 3 pm

Across all the parks we cover, that three-hour window holds the most Appalachian Tiger Swallowtail sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see an Appalachian Tiger Swallowtail?

Only Great Smoky Mountains National Park, in our data

Great Smoky Mountains National Park is the only park on Wallace's Line with enough records to rate Appalachian Tiger Swallowtail sightings: about 10% of wildlife watchers there report one on a given day.

Which relatives of the Appalachian Tiger Swallowtail live in Great Smoky Mountains National Park?

Same genus: Papilio

The closest relatives of the Appalachian Tiger Swallowtail that you can see in Great Smoky Mountains National Park (genus Papilio, Common Swallowtails) are Eastern Tiger Swallowtail (about 50%), Spicebush Swallowtail (about 30%) and Black Swallowtail (about 10%), with each one's daily chance of a sighting.

Where does the Appalachian Tiger Swallowtail sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Appalachian Tiger Swallowtail is recorded against all the insects logged in Great Smoky Mountains National Park (51 verified sightings from 2019 to 2026), 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.

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