Cydia latiferreana
In 3 days ~20% in a week ~40%
Cydia latiferreana, the filbertworm moth, is a moth of the family Tortricidae. It was formerly (and sometimes is still) separated in a monotypic genus Melissopus. It is found in most of North America. The wingspan is about 18 mm. Adults are on wing from July to October depending on the location.
The larvae (filbertworms) feed on the acorns of Quercus alba (white oak), Quercus macrocarpa, Quercus rubra and Quercus velutina but are most noted for feeding on hazelnuts—seeds of the genus Corylus—and are a major pest of hazelnut orchards in the Pacific northwest. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Acadia National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Dallas | 🇺🇸 United States | |
| 3 | Houston | 🇺🇸 United States | |
| 4 | Boston | 🇺🇸 United States | |
| 5 | Baltimore | 🇺🇸 United States | |
| 6 | Chicago | 🇺🇸 United States | |
| 7 | Sacramento | 🇺🇸 United States | |
| 8 | Washington | 🇺🇸 United States | |
| 9 | San Francisco | 🇺🇸 United States | |
| 10 | San Antonio | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Filbertworm Moth 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 201st 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 and July–September
In those months about 10% of wildlife watchers report a Filbertworm Moth in Shenandoah National Park on a given day, against under 5% in June and October–April, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Filbertworm Moth sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 2 parks where we can rate Filbertworm Moth sightings, Shenandoah National Park has the highest daily chance: about 10%. Next come Acadia National Park (United States, about 10%).
Same family: Tortricidae
The closest relatives of the Filbertworm Moth that you can see in Shenandoah National Park (family Tortricidae, Tortricid Leafroller Moths) are Locust Twig Borer Moth (about 10%), Filigreed Moth (about 10%) and Reticulated Fruitworm Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Filbertworm Moth 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.
