Idia rotundalis
In 3 days ~10% in a week ~30%
Idia rotundalis, the chocolate idia or rotund idia moth, is a litter moth of the family Erebidae. The species was first described by Francis Walker in 1866. It is found from southern Canada to Florida and Texas. The wingspan is about 20 mm. There is one generation in the north and two or more generations in the south.
Larvae feed on detritus, including dead leaves. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Acadia National Park | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Rotund Idia Moth sighting in Acadia National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 270th most-seen of the 405 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.
July and August
In those months about 10% of wildlife watchers report a Rotund Idia Moth in Acadia National Park on a given day, against under 5% in September to June, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Rotund Idia Moth sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Acadia National Park, in our data
Acadia National Park is the only park on Wallace's Line with enough records to rate Rotund Idia Moth sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Idia
The closest relatives of the Rotund Idia Moth that you can see in Acadia National Park (genus Idia) are Common Idia Moth (about 10%) and American Idia Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rotund Idia Moth is recorded against all the insects logged in Acadia National Park (10 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.
