Virbia aurantiaca
In 3 days ~10% in a week ~30%
Virbia aurantiaca, the orange holomelina, is a moth species of the family Erebidae found in North America. In the east it has been recorded from Manitoba and Nova Scotia, south along the eastern seaboard to Cordoba in Mexico. It has also been recorded from Texas, Mississippi, Missouri, Tennessee, Louisiana, Oklahoma, Kansas, North Dakota and South Dakota.
The length of the forewings is about 10 mm for males and 9.7 mm for females. Larvae have been reared on dandelion and plantain species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Orange Virbia Moth sighting in Shenandoah National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 571st 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 and August
In those months about 10% of wildlife watchers report an Orange Virbia Moth in Shenandoah National Park on a given day, against under 5% in June–July and September–April, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Orange Virbia Moth sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and 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 Orange Virbia Moth sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Erebidae
The closest relatives of the Orange Virbia Moth that you can see in Shenandoah National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Spongy Moth (about 40%), Isabella Tiger Moth (about 30%) and Hickory Tussock Moth (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Orange Virbia Moth is recorded against all the insects logged in Shenandoah National Park (6 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.
