Clemens' False Skeletonizer

Clemens' False Skeletonizer

Acoloithus falsarius

Daily sighting probability ~10% · With luck
at Shenandoah National Park

In 3 days ~10% in a week ~30%

9 Verified sightings at Shenandoah National Park From 2019 to 2026
16 In all 2 parks
July Best month
☀️ Diurnal When it's spotted

About the Clemens' False Skeletonizer

Acoloithus falsarius, or Clemens' false skeletonizer, is a moth species in the zygaenid subfamily Procridinae. The species occurs in North America and was described by James Brackenridge Clemens in 1860. A. falsarius has Hodges number 4629 and is the type species of genus Acoloithus.

Larvae are known to feed on Vitis spp. and Ampelopsis spp. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Shenandoah National Park 🇺🇸 United States
~10%
2 Great Smoky Mountains National Park 🇺🇸 United States
<5%

Cities Where Found

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

Before you go

What are the chances of seeing a Clemens' False Skeletonizer in Shenandoah National Park?

With luck

About 10% of wildlife watchers report a Clemens' False Skeletonizer sighting in Shenandoah National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 447th most-seen of the 723 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Clemens' False Skeletonizer in Shenandoah National Park?

July and September

In those months about 10% of wildlife watchers report a Clemens' False Skeletonizer in Shenandoah National Park on a given day, against under 5% in August and October–June, the lowest months.

What time of day is best to see a Clemens' False Skeletonizer?

Between noon and 3 pm

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

Is Shenandoah National Park the best place to see a Clemens' False Skeletonizer?

Yes

Of the 2 parks where we can rate Clemens' False Skeletonizer sightings, Shenandoah National Park has the highest daily chance: about 10%. Next come Great Smoky Mountains National Park (United States, under 5%).

Which relatives of the Clemens' False Skeletonizer live in Shenandoah National Park?

Same family: Zygaenidae

The closest relatives of the Clemens' False Skeletonizer that you can see in Shenandoah National Park (family Zygaenidae, Burnet Moths) are Orange-Patched Smoky Moth (about 10%) and Grapeleaf Skeletonizer Moth (about 10%), with each one's daily chance of a sighting.

Where does the Clemens' False Skeletonizer sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Clemens' False Skeletonizer is recorded against all the insects logged in Shenandoah National Park (9 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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