Single-Dotted Wave

Single-Dotted Wave

Idaea dimidiata

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

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

11 Verified sightings at Acadia National Park From 2019 to 2026
125 In all 6 parks
July Best month
🌅 Crepuscular When it's spotted

About the Single-Dotted Wave

Idaea dimidiata, the single-dotted wave, is a moth of the family Geometridae. It is a Holarctic species. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Wadden Sea National Park 🇩🇪 Germany
~10%
2 Gros Morne National Park 🇨🇦 Canada
~10%
3 Acadia National Park 🇺🇸 United States
~10%
4 Bavarian Forest National Park 🇩🇪 Germany
~10%
5 Pyrénées National Park 🇫🇷 France
<5%
6 Olympic National Park 🇺🇸 United States
<5%

Cities Where Found

# City Country Daily sighting probability
1 Rotterdam [The Hague] 🇳🇱 Netherlands
~10%
2 Liverpool 🇬🇧 United Kingdom
~10%
3 London 🇬🇧 United Kingdom
~10%
4 Birmingham 🇬🇧 United Kingdom
~10%
5 Porto 🇵🇹 Portugal
~10%
6 Boston 🇺🇸 United States
~10%
7 Leeds 🇬🇧 United Kingdom
~10%
8 Dublin 🇮🇪 Ireland
~10%
9 Toronto 🇨🇦 Canada
~10%
10 Montreal 🇨🇦 Canada
~10%

Before you go

What are the chances of seeing a Single-Dotted Wave in Acadia National Park?

With luck

About 10% of wildlife watchers report a Single-Dotted Wave sighting in Acadia National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 202nd most-seen of the 405 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 Single-Dotted Wave in Acadia National Park?

July

In that month about 10% of wildlife watchers report a Single-Dotted Wave in Acadia National Park on a given day, against under 5% in August to June, the lowest months.

What time of day is best to see a Single-Dotted Wave?

Between 6 and 9 am

Across all the parks we cover, that three-hour window holds the most Single-Dotted Wave sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.

Is Acadia National Park the best place to see a Single-Dotted Wave?

Among the best

Of the 6 parks where we can rate Single-Dotted Wave sightings, Acadia National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Wadden Sea National Park (Germany, about 10%) and Gros Morne National Park (Canada, about 10%).

Which relatives of the Single-Dotted Wave live in Acadia National Park?

Same family: Geometridae

The closest relatives of the Single-Dotted Wave that you can see in Acadia National Park (family Geometridae, Geometer Moths) are Sweetfern Geometer Moth (about 10%), Pale Beauty (about 10%) and Gray Spruce Looper Moth (about 10%), with each one's daily chance of a sighting.

Where does the Single-Dotted Wave sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Single-Dotted Wave is recorded against all the insects logged in Acadia National Park (11 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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