Three-Patched Bigwing

Three-Patched Bigwing

Heterophleps refusaria

Daily sighting probability <5% · Rare
at Shenandoah National Park

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

6 Verified sightings at Shenandoah National Park From 2019 to 2026
17 In all 2 parks
May Best month
☀️🌙 Day & Night When it's spotted

About the Three-Patched Bigwing

Heterophleps refusaria, the three-patched bigwing, is a species of geometrid moth in the family Geometridae. It was described by Francis Walker in 1861 and is found in North America. The MONA or Hodges number for Heterophleps refusaria is 7645. Wikipedia →

Global Distribution

Parks Where Found

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

Before you go

What are the chances of seeing a Three-Patched Bigwing in Shenandoah National Park?

Rare

Under 5% of wildlife watchers report a Three-Patched Bigwing sighting in Shenandoah National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 571st 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 Three-Patched Bigwing in Shenandoah National Park?

May to July

In those months about 10% of wildlife watchers report a Three-Patched Bigwing in Shenandoah National Park on a given day, against under 5% in August to April, the lowest months.

What time of day is best to see a Three-Patched Bigwing?

Between 8 and 11 pm

Across all the parks we cover, that three-hour window holds the most Three-Patched Bigwing 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 Shenandoah National Park the best place to see a Three-Patched Bigwing?

Yes

Of the 2 parks where we can rate Three-Patched Bigwing sightings, Shenandoah National Park has the highest daily chance: under 5%. Next come Great Smoky Mountains National Park (United States, under 5%).

Which relatives of the Three-Patched Bigwing live in Shenandoah National Park?

Same family: Geometridae

The closest relatives of the Three-Patched Bigwing that you can see in Shenandoah National Park (family Geometridae, Geometer Moths) are Tulip-Tree Beauty (about 20%), Pale Beauty (about 10%) and Large Maple Spanworm Moth (about 10%), with each one's daily chance of a sighting.

Where does the Three-Patched Bigwing sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Three-Patched Bigwing is recorded against all the insects logged in Shenandoah National Park (6 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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