Hypsopygia olinalis
In 3 days ~10% in a week ~30%
Hypsopygia olinalis, the yellow-fringed dolichomia, is a moth of the family Pyralidae. It is found in eastern North America. The wingspan is 16–24 mm. Adults are on wing from May to August in the American north-east and from May to September in North Carolina.
The larvae feed on Quercus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | Detroit | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Boston | 🇺🇸 United States | |
| 6 | Philadelphia | 🇺🇸 United States | |
| 7 | Dallas | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Denver | 🇺🇸 United States | |
| 10 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Yellow-Fringed Dolichomia Moth sighting in Acadia National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 304th most-seen of the 405 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.
July
In that month about 10% of wildlife watchers report a Yellow-Fringed Dolichomia Moth in Acadia National Park on a given day, against under 5% in August to June, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Yellow-Fringed Dolichomia Moth sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
2nd of 3
Of the 3 parks where we can rate Yellow-Fringed Dolichomia Moth sightings, Acadia National Park ranks 2nd at under 5%. The best odds are in Shenandoah National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Yellow-Fringed Dolichomia Moth is recorded against all the insects logged in Acadia 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.
