Eudonia truncicolella
In 3 days ~10% in a week ~30%
Eudonia truncicolella is a species of moth of the family Crambidae described by Henry Tibbats Stainton in 1849. It is found in China (Hebei, Heilongjiang, Inner Mongolia, Jiangsu, Jilin, Liaoning), Japan west to Europe. The wingspan is 18–23 mm (0.71–0.91 in). The forewings are ochreous-whitish, much sprinkled with black; base blackish - marked; lines whitish, dark -edged, first irregular, second angulate -sinuate, subserrate; orbicular and claviform dot-like or rather elongate, black; discal spot 8-shaped, outlined with black; subterminal line whitish, touching second in middle. Hindwings are whitish-grey, darker terminally. The larva is dull dark brown; dorsal line blackish; spots black head dark brown; plate of 2 almost black.
The moth flies from June to October depending on the location. The larvae feed on various mosses. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 3 | Cairngorms National Park | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Ground-Moss Grey sighting in Paris on a given day, based on 30 verified sightings from GBIF citizen-science data. It is the 333rd most-seen of the 916 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.
May and August–September
In those months about 10% of wildlife watchers report a Ground-Moss Grey in Paris on a given day, against under 5% in June–July and October–April, the lowest months.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Ground-Moss Grey sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
3rd of 5
Of the 5 cities where we can rate Ground-Moss Grey sightings, Paris ranks 3rd at under 5%. The best odds are in Helsinki (Finland, about 10%) and London (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Ground-Moss Grey is recorded against all the insects logged in Paris (30 verified sightings), 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.
