Digrammia gnophosaria
In 3 days ~10% in a week ~30%
Digrammia gnophosaria, the hollow-spotted angle, is a species of moth of the family Geometridae. It is found in Illinois, Louisiana, Minnesota, New Jersey, North Carolina, Oklahoma, Texas and Wisconsin. The larvae feed on Salix species, including Salix babylonica. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States | |
| 2 | Everglades National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | Dallas | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | Chicago | 🇺🇸 United States | |
| 6 | Toronto | 🇨🇦 Canada | |
| 7 | Washington | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Hollow-Spotted Angle sighting in Everglades National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 396th most-seen of the 496 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.
May and October
In those months about 10% of wildlife watchers report a Hollow-Spotted Angle in Everglades National Park on a given day, against under 5% in June–September and November–April, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Hollow-Spotted Angle sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 2
Of the 2 parks where we can rate Hollow-Spotted Angle sightings, Everglades National Park ranks 2nd at under 5%. The best odds are in Big Cypress National Preserve (United States, about 10%).
Same family: Geometridae
The closest relatives of the Hollow-Spotted Angle that you can see in Everglades National Park (family Geometridae, Geometer Moths) are Raspberry Wave (about 10%) and Swag-Lined Wave (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hollow-Spotted Angle is recorded against all the insects logged in Everglades National Park (8 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.
