Eufidonia notataria
In 3 days ~10% in a week ~20%
Eufidonia notataria, the powder moth, is a species of moth in the family Geometridae. It is found in north-eastern North America. The wingspan is 22–27 mm. Adults are on wing from May to July. There is one generation per year.
The larvae feed on balsam fir, eastern hemlock, eastern larch and spruces. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Powder Moth sighting in Boston on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 1063rd most-seen of the 1200 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Powder Moth in Boston on a given day, so our monthly data shows no clear season.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Powder Moth sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Boston, in our data
Boston is the only city on Wallace's Line with enough records to rate Powder Moth sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Powder Moth that you can see in Boston (family Geometridae, Geometer Moths) are Pale Beauty (about 10%), Single-Dotted Wave (about 10%) and Winter Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Powder Moth is recorded against all the insects logged in Boston (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.
