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 Fertő-Hanság National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 116th most-seen of the 243 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.
April–June and August
In those months about 10% of wildlife watchers report a Grass Eggar in Fertő-Hanság National Park on a given day, against under 5% in July and September–March, 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.
11th of 12
Of the 12 parks where we can rate Grass Eggar sightings, Fertő-Hanság National Park ranks 11th 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%).
GBIF citizen-science records
It is estimated from how often the Grass Eggar is recorded against all the insects logged in Fertő-Hanság National Park (8 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.
