Eudonia truncicolella
In 3 days ~10% in a week ~20%
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 Vienna on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 1286th most-seen of the 1406 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Ground-Moss Grey in Vienna on a given day, so our monthly data shows no clear season.
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.
4th of 5
Of the 5 cities where we can rate Ground-Moss Grey sightings, Vienna ranks 4th at under 5%. The best odds are in Helsinki (Finland, about 10%), London (United Kingdom, under 5%) and Paris (France, under 5%).
GBIF citizen-science records
It is estimated from how often the Ground-Moss Grey is recorded against all the insects logged in Vienna (6 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.
