Acronicta impleta
In 3 days ~10% in a week ~30%
Acronicta impleta, the yellow-haired dagger moth, is a moth of the family Noctuidae. It is found in most of North America. The wingspan is about 42 mm. Adults are on wing from April to July depending on the location. The larvae feed on Ulmus, Acer, Betula, Salix and Quercus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Congaree National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 3 | Acadia National Park | 🇺🇸 United States | |
| 4 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Toronto | 🇨🇦 Canada | |
| 3 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Powdered Dagger sighting in Shenandoah National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 630th most-seen of the 723 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.
September
In that month about 10% of wildlife watchers report a Powdered Dagger in Shenandoah National Park on a given day, against under 5% in October to August, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Powdered Dagger sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 4
Of the 4 parks where we can rate Powdered Dagger sightings, Shenandoah National Park ranks 4th at under 5%. The best odds are in Congaree National Park (United States, about 10%), Great Smoky Mountains National Park (United States, about 10%) and Acadia National Park (United States, under 5%).
Same genus: Acronicta
The closest relatives of the Powdered Dagger that you can see in Shenandoah National Park (genus Acronicta, Dagger Moths) are American Dagger (about 10%) and Maple Dagger (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Powdered Dagger is recorded against all the insects logged in Shenandoah National Park (5 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.
