Nason's Slug Moth

Nason's Slug Moth

Natada nasoni

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

In 3 days ~20% in a week ~30%

17 Verified sightings at Great Smoky Mountains National Park From 2019 to 2026
25 In all 2 parks
September Best month
☀️🌙 Day & Night When it's spotted

About the Nason's Slug Moth

Natada nasoni, Nason's slug or Nason's slug moth, is a moth of the family Limacodidae. It is found in the United States from Missouri to the Atlantic coast and south to the Gulf of Mexico. The larvae feed on various smooth-leaved woody plants, including beech, hickory and hornbeam. They are adorned with stinging spines. Wikipedia →

Global Distribution

Parks Where Found

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

Cities Where Found

# City Country Daily sighting probability
1 Washington 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Nason's Slug Moth in Great Smoky Mountains National Park?

With luck

About 10% of wildlife watchers report a Nason's Slug Moth sighting in Great Smoky Mountains National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 334th most-seen of the 822 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Nason's Slug Moth in Great Smoky Mountains National Park?

June and August–September

In those months about 10% of wildlife watchers report a Nason's Slug Moth in Great Smoky Mountains National Park on a given day, against under 5% in July and October–May, the lowest months.

What time of day is best to see a Nason's Slug Moth?

Between 9 pm and midnight

Across all the parks we cover, that three-hour window holds the most Nason's Slug Moth sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.

Is Great Smoky Mountains National Park the best place to see a Nason's Slug Moth?

Yes

Of the 2 parks where we can rate Nason's Slug Moth sightings, Great Smoky Mountains National Park has the highest daily chance: about 10%. Next come Shenandoah National Park (United States, about 10%).

Which relatives of the Nason's Slug Moth live in Great Smoky Mountains National Park?

Same family: Limacodidae

The closest relatives of the Nason's Slug Moth that you can see in Great Smoky Mountains National Park (family Limacodidae, Slug Caterpillar Moths) are Yellow-Shouldered Slug Moth (about 10%), Spiny Oak-Slug Moth (about 10%) and Saddleback Caterpillar Moth (about 10%), with each one's daily chance of a sighting.

Where does the Nason's Slug Moth sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Nason's Slug Moth is recorded against all the insects logged in Great Smoky Mountains National Park (17 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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