Eudonia lacustrata
In 3 days ~30% in a week ~60%
Eudonia lacustrata is a species of moth of the family Crambidae described by Georg Wolfgang Franz Panzer in 1804. It is found in Europe, north-west Africa, Asia from Turkey, Iran and Syria to Siberia and the western part of China (Hunan). The subspecies E. lacustrata persica is found in Iran and Armenia.
The wingspan is 16–18 mm (0.63–0.71 in). Forewings whitish, sometimes mixed with light ochreous-yellowish, sprinkled with black; base black-marked; lines whitish, blackish-edged, first irregular, second rather sinuate; orbicular and claviform dot-like, black; a black X-shaped discal mark; terminal area grey mixed with black, subterminal line white, interrupted in middle. Hindwings whitish-grey, darker terminally.
Larva yellowish-green; spots brownish-green; head and plate of 2 black-brown: on mosses; 3, 4. The moth flies from May to August depending on the location. The larvae feed on various mosses. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mercantour National Park | 🇫🇷 France | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 4 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 5 | Cévennes National Park | 🇫🇷 France | |
| 6 | Pyrénées National Park | 🇫🇷 France | |
| 7 | Wadden Sea National Park | 🇩🇪 Germany | |
| 8 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Manchester | 🇬🇧 United Kingdom | |
| 3 | London | 🇬🇧 United Kingdom | |
| 4 | Birmingham | 🇬🇧 United Kingdom | |
| 5 | Helsinki | 🇫🇮 Finland | |
| 6 | Leeds | 🇬🇧 United Kingdom | |
| 7 | Budapest | 🇭🇺 Hungary | |
| 8 | Essen | 🇩🇪 Germany | |
| 9 | Brussels | 🇧🇪 Belgium | |
| 10 | Munich | 🇩🇪 Germany |
With luck
About 10% of wildlife watchers report a Little Grey sighting in Bavarian Forest National Park on a given day, based on 37 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 130th most-seen of the 1115 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
June and July
In those months about 20% of wildlife watchers report a Little Grey in Bavarian Forest National Park on a given day, against under 5% in September to May, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Little Grey 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.
Among the best
Of the 8 parks where we can rate Little Grey sightings, Bavarian Forest National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Mercantour National Park (France, about 10%).
Same genus: Eudonia
The closest relatives of the Little Grey that you can see in Bavarian Forest National Park (genus Eudonia) are Small Grey (about 10%) and Ground-Moss Grey (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Little Grey is recorded against all the insects logged in Bavarian Forest National Park (37 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.
