Marbled Conch

Marbled Conch

Eupoecilia angustana

Daily sighting probability <5% · Rare
at Wadden Sea National Park

In 3 days ~10% in a week ~20%

7 Verified sightings at Wadden Sea National Park From 2019 to 2026
7 In 1 park
August Best month
🌙 Nocturnal When it's spotted

About the Marbled Conch

Eupoecilia angustana is a moth of the family Tortricidae. It is found in most of Europe to the southern part of the Urals, and across the Palearctic to China (Anhui, Beijing, Gansu, Heilongijiang, Henan, Jilin, Ningxia, Shaanxi, Shandong, Shanxi), Japan and Korea.

The wingspan is 10–15 mm. The moth flies from June to September. The larvae feed on Plantago, Achillea, Calluna, Origanum, Thymus and Solidago. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Wadden Sea National Park 🇩🇪 Germany
<5%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Marbled Conch in Wadden Sea National Park?

Rare

Under 5% of wildlife watchers report a Marbled Conch sighting in Wadden Sea National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 630th most-seen of the 818 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.

When is the best time to see a Marbled Conch in Wadden Sea National Park?

August

In that month about 10% of wildlife watchers report a Marbled Conch in Wadden Sea National Park on a given day, against under 5% in September to July, the lowest months.

What time of day is best to see a Marbled Conch?

Between 10 pm and 1 am

Across all the parks we cover, that three-hour window holds the most Marbled Conch 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.

Where else can you see a Marbled Conch?

Only Wadden Sea National Park, in our data

Wadden Sea National Park is the only park on Wallace's Line with enough records to rate Marbled Conch sightings: under 5% of wildlife watchers there report one on a given day.

Which relatives of the Marbled Conch live in Wadden Sea National Park?

Same family: Tortricidae

The closest relatives of the Marbled Conch that you can see in Wadden Sea National Park (family Tortricidae, Tortricid Leafroller Moths) are Garden Rose Tortrix (about 10%), Small Straw Twist (about 10%) and Dark Fruit-Tree Tortrix (about 10%), with each one's daily chance of a sighting.

Where does the Marbled Conch sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Marbled Conch is recorded against all the insects logged in Wadden Sea 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.

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