Iridopsis larvaria
In 3 days ~30% in a week ~50%
Iridopsis larvaria, the bent-line gray, is a species of geometrid moth in the family Geometridae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Bent-Line Gray sighting in Great Smoky Mountains National Park on a given day, based on 54 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 106th most-seen of the 822 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Bent-Line Gray in Great Smoky Mountains National Park on a given day, against under 5% in October to March, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Bent-Line Gray 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.
Among the best
Of the 2 parks where we can rate Bent-Line Gray sightings, Great Smoky Mountains National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Shenandoah National Park (United States, about 10%).
Same family: Geometridae
The closest relatives of the Bent-Line Gray 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 Bent-Line Gray is recorded against all the insects logged in Great Smoky Mountains National Park (54 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.
