European Common Grey

European Common Grey

Scoparia ambigualis

Daily sighting probability ~10% · With luck
at Snowdonia National Park

In 3 days ~20% in a week ~40%

5 Verified sightings at Snowdonia National Park From 2019 to 2026
11 In all 2 parks
June Best month
☀️🌙 Day & Night When it's spotted

About the European Common Grey

Scoparia ambigualis is a species of moth of the family Crambidae described by Friedrich Treitschke in 1829. It is found in Europe and Asia Minor and possibly in Guangdong and Shanxi in China. The wingspan is 15–22 mm. The forewings are whitish, more or less sprinkled with grey and black; a black ochreous-mixed mark from base of costa; lines whitish, dark -edged, first irregular, second angulated above middle; orbicular elongate, brownish, more or less black-edged, resting on first line; claviform dot- like, black, seldom elongated to touch first line; discal spot 8-shaped, incompletely black edged, upper and sometimes lower half pale greyish-ochreous or brownish; terminal area dark, subterminal line cloudy, whitish; a terminal series of blackish marks. Hindwings are prismatic grey-whitish, terminally suffused with grey.

The moth flies from May to September depending on the location. The larvae feed on valerian and probably also on various mosses. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Snowdonia National Park 🇬🇧 United Kingdom
~10%
2 Bavarian Forest National Park 🇩🇪 Germany
<5%

Cities Where Found

# City Country Daily sighting probability
1 Liverpool 🇬🇧 United Kingdom
~10%
2 London 🇬🇧 United Kingdom
<5%
3 Helsinki 🇫🇮 Finland
<5%
4 Birmingham 🇬🇧 United Kingdom
<5%

Before you go

What are the chances of seeing a European Common Grey in Snowdonia National Park?

With luck

About 10% of wildlife watchers report a European Common Grey sighting in Snowdonia National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 336th most-seen of the 387 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.

When is the best time to see a European Common Grey in Snowdonia National Park?

June

In that month about 20% of wildlife watchers report a European Common Grey in Snowdonia National Park on a given day, against under 5% in August to May, the lowest months.

What time of day is best to see a European Common Grey?

Between 9 pm and midnight

Across all the parks we cover, that three-hour window holds the most European Common Grey sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.

Is Snowdonia National Park the best place to see a European Common Grey?

Yes

Of the 2 parks where we can rate European Common Grey sightings, Snowdonia National Park has the highest daily chance: about 10%. Next come Bavarian Forest National Park (Germany, under 5%).

Which relatives of the European Common Grey live in Snowdonia National Park?

Same family: Crambidae

The closest relatives of the European Common Grey that you can see in Snowdonia National Park (family Crambidae, Crambid Snout Moths) are Small Grey (about 10%), Barred Grass-Veneer (about 10%) and Small Magpie (about 10%), with each one's daily chance of a sighting.

Where does the European Common Grey sighting chance come from?

GBIF citizen-science records

It is estimated from how often the European Common Grey is recorded against all the insects logged in Snowdonia 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.

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