Erynnis juvenalis
In 3 days ~30% in a week ~60%
Gesta juvenalis, commonly known as Juvenal's duskywing, is a species of butterfly in the family Hesperiidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States | |
| 3 | Congaree National Park | 🇺🇸 United States | |
| 4 | Riding Mountain National Park | 🇨🇦 Canada | |
| 5 | Point Pelee National Park | 🇨🇦 Canada | |
| 6 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | San Antonio | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Dallas | 🇺🇸 United States | |
| 6 | Toronto | 🇨🇦 Canada | |
| 7 | New York City | 🇺🇸 United States | |
| 8 | Austin | 🇺🇸 United States | |
| 9 | Miami | 🇺🇸 United States | |
| 10 | Montreal | 🇨🇦 Canada |
With luck
About 10% of wildlife watchers report a Juvenal's Duskywing sighting in Shenandoah National Park on a given day, based on 40 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 96th most-seen of the 723 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
April
In that month about 40% of wildlife watchers report a Juvenal's Duskywing in Shenandoah National Park on a given day, against under 5% in June to February, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Juvenal's Duskywing sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 6
Of the 6 parks where we can rate Juvenal's Duskywing sightings, Shenandoah National Park ranks 2nd at about 10%. The best odds are in Great Smoky Mountains National Park (United States, about 20%).
Same genus: Erynnis
The closest relatives of the Juvenal's Duskywing that you can see in Shenandoah National Park (genus Erynnis, Duskywings) are Horace's Duskywing (about 10%), Sleepy Duskywing (about 10%) and Dreamy Duskywing (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Juvenal's Duskywing is recorded against all the insects logged in Shenandoah National Park (40 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.
