Catocala nebulosa
In 3 days ~20% in a week ~50%
Catocala nebulosa, the clouded underwing, is a moth of the family Erebidae. The species was first described by William Henry Edwards in 1864. It is found in North America from southern Ontario south through Tennessee to Florida, west to Texas and eastern Oklahoma and north to Iowa, Michigan, Wisconsin and Minnesota.
The wingspan is 75–86 mm. Adults are on wing from July to September depending on the location. There is probably one generation per year. The larvae feed on Carya cordiformis and Juglans nigra. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Congaree National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Clouded Underwing sighting in Congaree National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 131st most-seen of the 145 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
July and August
In those months about 20% of wildlife watchers report a Clouded Underwing in Congaree National Park on a given day, against under 5% in October to May, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Clouded Underwing sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Congaree National Park, in our data
Congaree National Park is the only park on Wallace's Line with enough records to rate Clouded Underwing sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Catocala
The closest relatives of the Clouded Underwing that you can see in Congaree National Park (genus Catocala, Underwing Moths) are Carissima Underwing (about 10%) and Agrippina Underwing (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Clouded Underwing is recorded against all the insects logged in Congaree National Park (5 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.
