Digrammia gnophosaria
In 3 days ~10% in a week ~20%
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 Austin on a given day, based on 31 verified sightings from GBIF citizen-science data. It is the 672nd most-seen of the 1624 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report a Hollow-Spotted Angle in Austin on a given day, against under 5% in July to May, 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.
Among the best
Of the 8 cities where we can rate Hollow-Spotted Angle sightings, Austin ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Baltimore (United States, under 5%).
Same genus: Digrammia
The closest relatives of the Hollow-Spotted Angle that you can see in Austin (genus Digrammia) are Broad-Lined Angle (about 10%) and Digrammia pallidata (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 Austin (31 verified sightings), 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.
