Nerice bidentata
In 3 days ~10% in a week ~30%
Nerice bidentata, the base-streaked prominent moth or double-toothed prominent moth, is a moth of the family Notodontidae. It is found in from Nova Scotia to Florida, west to Texas and north to Saskatchewan. The wingspan is 30–40 mm. They are on wing from April to September and again from May to August in one generation per year in the north.
The larvae feed on the leaves of Ulmus species. They are chalky-green and are similar to the leaf edges of the host plant. Larvae can be found from June to October. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Double-Toothed Prominent sighting in Shenandoah National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 447th 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.
May
In that month about 10% of wildlife watchers report a Double-Toothed Prominent in Shenandoah National Park on a given day, against under 5% in June to April, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Double-Toothed Prominent sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Shenandoah National Park, in our data
Shenandoah National Park is the only park on Wallace's Line with enough records to rate Double-Toothed Prominent sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Notodontidae
The closest relatives of the Double-Toothed Prominent that you can see in Shenandoah National Park (family Notodontidae, Prominent Moths) are White-Dotted Prominent (about 10%), Azalea Caterpillar Moth (about 10%) and Mottled Prominent (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Double-Toothed Prominent is recorded against all the insects logged in Shenandoah National Park (7 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.
