Hypsopygia olinalis
In 3 days ~20% 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 |
With luck
About 10% of wildlife watchers report a Yellow-Fringed Dolichomia Moth sighting in Shenandoah National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 363rd most-seen of the 723 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June and August–September
In those months about 10% of wildlife watchers report a Yellow-Fringed Dolichomia Moth in Shenandoah National Park on a given day, against under 5% in July and October–May, 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.
Yes
Of the 3 parks where we can rate Yellow-Fringed Dolichomia Moth sightings, Shenandoah National Park has the highest daily chance: about 10%. Next come Acadia National Park (United States, under 5%) and Great Smoky Mountains National Park (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Yellow-Fringed Dolichomia Moth is recorded against all the insects logged in Shenandoah National Park (11 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.
