Hypena madefactalis
In 3 days ~20% in a week ~40%
Hypena madefactalis, the gray-edged hypena or gray-eyed bomolocha, is a moth of the family Erebidae. The species was first described by Achille Guenée in 1854. It is found from extreme southern Canada (Quebec) to Georgia and Texas.
The wingspan is 25–32 mm. The moth flies from April to August in the south and from May to August in the north. There are at least two generations per year. The larvae feed on walnut, mainly Juglans nigra and Juglans cinerea. Larvae have also been reared on shagbark hickory. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Point Pelee National Park | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Chicago | 🇺🇸 United States | |
| 3 | Washington | 🇺🇸 United States | |
| 4 | Toronto | 🇨🇦 Canada | |
| 5 | Boston | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Gray-Edged Snout sighting in Shenandoah National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 284th 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 40%, if each day is a fresh chance.
May to August
In those months about 10% of wildlife watchers report a Gray-Edged Snout in Shenandoah National Park on a given day, against under 5% in September to April, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Gray-Edged Snout 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 2 parks where we can rate Gray-Edged Snout sightings, Shenandoah National Park has the highest daily chance: about 10%. Next come Point Pelee National Park (Canada, about 10%).
Same genus: Hypena
The closest relatives of the Gray-Edged Snout that you can see in Shenandoah National Park (genus Hypena) are Green Cloverworm Moth (about 10%), Deceptive Snout (about 10%) and Baltimore Snout (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gray-Edged Snout is recorded against all the insects logged in Shenandoah National Park (19 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.
