Sweetfern Geometer Moth

Sweetfern Geometer Moth

Cyclophora pendulinaria

Daily sighting probability <5% · Rare
at New York City

In 3 days ~10%

5 Verified sightings at New York City
86 In all 3 parks From 2019 to 2026
September Best month
🌅 Crepuscular When it's spotted

About the Sweetfern Geometer Moth

Cyclophora pendulinaria, the sweetfern geometer moth or pearly-grey wave, is a moth in the family Geometridae. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Acadia National Park 🇺🇸 United States
~10%
2 Gros Morne National Park 🇨🇦 Canada
~10%
3 Great Bear Rainforest 🇨🇦 Canada
~10%

Cities Where Found

# City Country Daily sighting probability
1 Montreal 🇨🇦 Canada
<5%
2 New York City 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Sweetfern Geometer Moth in New York City?

Rare

Under 5% of wildlife watchers report a Sweetfern Geometer Moth sighting in New York City on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 1492nd most-seen of the 1623 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 Sweetfern Geometer Moth in New York City?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Sweetfern Geometer Moth in New York City on a given day, so our monthly data shows no clear season.

What time of day is best to see a Sweetfern Geometer Moth?

Between 6 and 9 am

Across all the parks we cover, that three-hour window holds the most Sweetfern Geometer Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.

Is New York City the best place to see a Sweetfern Geometer Moth?

Among the best

Of the 2 cities where we can rate Sweetfern Geometer Moth sightings, New York City ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Montreal (Canada, under 5%).

Where does the Sweetfern Geometer Moth sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Sweetfern Geometer Moth is recorded against all the insects logged in New York City (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.

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