Lasiocampa trifolii
In 3 days ~20% in a week ~50%
Lasiocampa trifolii, the grass eggar, is a moth of the family Lasiocampidae first described by Michael Denis and Ignaz Schiffermüller in 1775 and found in Europe. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kiskunság National Park | 🇭🇺 Hungary | |
| 2 | Picos de Europa National Park | 🇪🇸 Spain | |
| 3 | Doñana National Park | 🇪🇸 Spain | |
| 4 | Monfragüe National Park | 🇪🇸 Spain | |
| 5 | Cévennes National Park | 🇫🇷 France | |
| 6 | Camargue | 🇫🇷 France | |
| 7 | Triglav National Park | 🇸🇮 Slovenia | |
| 8 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 9 | Pyrénées National Park | 🇫🇷 France | |
| 10 | Wadden Sea National Park | 🇩🇪 Germany | |
| 11 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 12 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
With luck
About 10% of wildlife watchers report a Grass Eggar sighting in Sierra Nevada National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 330th most-seen of the 479 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
March–April and August
In those months about 20% of wildlife watchers report a Grass Eggar in Sierra Nevada National Park on a given day, against under 5% in May–July and October–February, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Grass Eggar sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
8th of 12
Of the 12 parks where we can rate Grass Eggar sightings, Sierra Nevada National Park ranks 8th at about 10%. The best odds are in Kiskunság National Park (Hungary, about 30%), Picos de Europa National Park (Spain, about 20%) and Doñana National Park (Spain, about 20%).
Same order: Lepidoptera
The closest relatives of the Grass Eggar that you can see in Sierra Nevada National Park (order Lepidoptera, Butterflies and Moths) are Clouded Yellow (about 40%), Wall Brown (about 40%) and Iberian Marbled White (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Grass Eggar is recorded against all the insects logged in Sierra Nevada 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.
