Chloropteryx tepperaria
In 3 days ~10% in a week ~30%
Chloropteryx tepperaria, the angle-winged emerald moth, is a moth of the family Geometridae. The species was first described by George Duryea Hulst in 1886 and it is found in the southeastern United States. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Angle-Winged Emerald sighting in Great Smoky Mountains National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 513th most-seen of the 822 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.
June–July and September
In those months about 10% of wildlife watchers report an Angle-Winged Emerald in Great Smoky Mountains National Park on a given day, against under 5% in August and October–May, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Angle-Winged Emerald sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Great Smoky Mountains National Park, in our data
Great Smoky Mountains National Park is the only park on Wallace's Line with enough records to rate Angle-Winged Emerald sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Angle-Winged Emerald that you can see in Great Smoky Mountains National Park (family Geometridae, Geometer Moths) are Tulip-Tree Beauty (about 30%), White-Striped Black (about 20%) and Pale Beauty (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Angle-Winged Emerald is recorded against all the insects logged in Great Smoky Mountains National Park (7 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.
