Gastropacha quercifolia
In 3 days ~10% in a week ~30%
Gastropacha quercifolia, the lappet, is a moth of the family Lasiocampidae. It is found in Europe and east across the Palearctic to Japan. The wingspan is 50–90 mm. Meyrick describes it thus - forewings with 9 to termen; red-brown, with purple-bluish gloss, towards costa blackish-mixed, dorsally ferruginous; first, second, and praesubterminal lines blackish-grey, waved, bent near costa; a blackish-grey discal mark; termen waved-dentate. Hindwings as forewings, but lines indistinct, straight, costal area ferruginous, with about six blackish pseudoneuria; 8 connected with cell by long bar. Larva dark grey or brown; whitish dorsal marks on 3 and 4; 2nd and 3rd incisions deep indigo-blue; a prominence on 1 2; a subspiracular series of tubercles and fringe of pale hairs.
The larvae feed on Crataegus, Prunus spinosa, willow and oak. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pyrénées National Park | 🇫🇷 France |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a The Lappet sighting in Pyrénées National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 806th most-seen of the 1277 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.
June and July
In those months about 10% of wildlife watchers report a The Lappet in Pyrénées National Park on a given day, against under 5% in August to May, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most The Lappet sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Pyrénées National Park, in our data
Pyrénées National Park is the only park on Wallace's Line with enough records to rate The Lappet sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Lasiocampidae
The closest relatives of the The Lappet that you can see in Pyrénées National Park (family Lasiocampidae, Lappet Moths) are Fox Moth (about 20%), Oak Eggar (about 20%) and Grass Eggar (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the The Lappet is recorded against all the insects logged in Pyrénées National Park (9 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.
