Iridopsis defectaria
In 3 days ~10% in a week ~30%
Anacamptodes defectaria, the brown-shaded gray moth, is a moth of the family Geometridae. It is found from Pennsylvania, west to Iowa and Kansas, south to Texas, and south and east to Florida. The wingspan is about 30 mm. Adults are on wing from February to November depending on the location.
The larvae feed on oak, poplar, sweet cherry and willow. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Dallas | 🇺🇸 United States | |
| 3 | San Antonio | 🇺🇸 United States | |
| 4 | Baltimore | 🇺🇸 United States | |
| 5 | Orlando | 🇺🇸 United States | |
| 6 | Washington | 🇺🇸 United States | |
| 7 | Houston | 🇺🇸 United States | |
| 8 | Monterrey | 🇲🇽 México | |
| 9 | Philadelphia | 🇺🇸 United States | |
| 10 | Miami | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Brown-Shaded Gray sighting in Shenandoah National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 630th most-seen of the 723 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.
April and July
In those months about 10% of wildlife watchers report a Brown-Shaded Gray in Shenandoah National Park on a given day, against under 5% in May–June and August–March, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Brown-Shaded Gray sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Shenandoah National Park, in our data
Shenandoah National Park is the only park on Wallace's Line with enough records to rate Brown-Shaded Gray sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Brown-Shaded Gray is recorded against all the insects logged in Shenandoah National Park (6 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.
