Euchoeca nebulata
In 3 days ~10% in a week ~30%
Euchoeca is a monotypic moth genus in the family Geometridae erected by Jacob Hübner in 1823. Its only species, Euchoeca nebulata, the dingy shell, was described by Giovanni Antonio Scopoli in 1763. It is found in the Palearctic realm, from Europe across Russia to Japan.
The wingspan is 23–25 millimetres (0.91–0.98 in). The ground colour of the forewing is sandy brown or orange cream. The wings have very fine and faint darker cross lines and creamy-brown chequered fringes. There is a double curve on the termen of the hindwing. The caterpillar is green, with three lines along the dorsum, the central one dark green, and the others yellow and a purple stripe runs along under the spiracles. In another form the general colour is greyish with a reddish-brown stripe along the back, and series of spots of the same colour along the sides.
The moth flies from April to September depending on the location. The larvae feed on birch and alder in damp woodland, fens and other marshy areas. Savela, Markku. "Euchoeca Hübner, 1823". Lepidoptera and Some Other Life Forms. Retrieved 25 February 2019.
Dingy shell on UKMoths Lepidoptera of Belgium Archived 2017-03... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Dingy Shell sighting in Bavarian Forest National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 964th most-seen of the 1115 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 July–August
In those months about 10% of wildlife watchers report a Dingy Shell in Bavarian Forest National Park on a given day, against under 5% in June and September–April, the lowest months.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Dingy Shell sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Bavarian Forest National Park, in our data
Bavarian Forest National Park is the only park on Wallace's Line with enough records to rate Dingy Shell sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Dingy Shell that you can see in Bavarian Forest National Park (family Geometridae, Geometer Moths) are Common Heath (about 20%), Latticed Heath (about 20%) and Yellow Shell Moth (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dingy Shell is recorded against all the insects logged in Bavarian Forest National Park (5 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.
