White-Shouldered Smudge

White-Shouldered Smudge

Ypsolopha parenthesella

Daily sighting probability <5% · Rare
at Moscow

In 3 days ~10%

7 Verified sightings at Moscow
8 In 1 park From 2019 to 2026
August Best month
🌙 Nocturnal When it's spotted

About the White-Shouldered Smudge

Ypsolopha parenthesella is a moth of the family Ypsolophidae. It is found from Europe to Japan, as well as north-eastern China, Asia Minor and mideast Asia. The wingspan is 16–20 mm.Head white or ochreous-whitish. Forewings pale or rather deep golden-ochreous, with scattered blackish strigulae, sometimes much suffused with dark bronzy-fuscous; usually a white longitudinal blotch extending along or beneath basal half of costa; a blackish dot above tornus, and another at apex.Hindwings grey.Larva yellowish-green; subdorsal line slender, yellowish; dots black; head brownish. It is a variable species, especially in wing pattern and colour.

Adults are on wing from August to September. The larvae feed on various trees, including Quercus, Fagus, Fraxinus, Populus, Carpinus (including Carpinus betulus), Crataegus, Malus, Betula and Corylus avellana. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Bavarian Forest National Park 🇩🇪 Germany
~10%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Moscow 🇷🇺 Russia
<5%

Before you go

What are the chances of seeing a White-Shouldered Smudge in Moscow?

Rare

Under 5% of wildlife watchers report a White-Shouldered Smudge sighting in Moscow on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 841st most-seen of the 1111 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.

When is the best time to see a White-Shouldered Smudge in Moscow?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a White-Shouldered Smudge in Moscow on a given day, so our monthly data shows no clear season.

What time of day is best to see a White-Shouldered Smudge?

Between 9 pm and midnight

Across all the parks we cover, that three-hour window holds the most White-Shouldered Smudge sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Where else can you see a White-Shouldered Smudge?

Only Moscow, in our data

Moscow is the only city on Wallace's Line with enough records to rate White-Shouldered Smudge sightings: under 5% of wildlife watchers there report one on a given day.

Where does the White-Shouldered Smudge sighting chance come from?

GBIF citizen-science records

It is estimated from how often the White-Shouldered Smudge is recorded against all the insects logged in Moscow (7 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.

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