Eucosma campoliliana
In 3 days ~10% in a week ~30%
Eucosma campoliliana is a moth of the family Tortricidae. It is found in Europe, China (Jilin, Heilongjiang), Japan and Russia. The wingspan is 13–18 mm. The head is adorned with white hairs, while the thorax is black with white spots on the sides. The ground colour of the forewings is snow white, with an interrupted, light brown cross-band in the middle and the wing tip mostly brown. There are areas with small black spots at the base and in the outer part of the wing. The hindwings are light grey-brown.
The moth flies from June to August in western Europe. The larvae feed on Jacobaea vulgaris and Tephroseris species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany |
With luck
About 10% of wildlife watchers report a Marbled Bell sighting in Bavarian Forest National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 727th 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.
July and August
In those months about 10% of wildlife watchers report a Marbled Bell in Bavarian Forest National Park on a given day, against under 5% in September to June, the lowest months.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Marbled Bell 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 2 parks where we can rate Marbled Bell sightings, Bavarian Forest National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Wadden Sea National Park (Germany, about 10%).
Same genus: Eucosma
The closest relatives of the Marbled Bell that you can see in Bavarian Forest National Park (genus Eucosma) are Hoary Bell (about 10%) and Pale Lettuce Bell (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Marbled Bell is recorded against all the insects logged in Bavarian Forest National Park (7 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.
