Ypsolopha parenthesella
In 3 days ~20% in a week ~30%
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 →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Moscow | 🇷🇺 Russia |
With luck
About 10% of wildlife watchers report a White-Shouldered Smudge sighting in Bavarian Forest National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 661st most-seen of the 1115 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
May–June and August–September
In those months about 10% of wildlife watchers report a White-Shouldered Smudge in Bavarian Forest National Park on a given day, against under 5% in July and October–April, the lowest months.
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.
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 White-Shouldered Smudge sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the White-Shouldered Smudge is recorded against all the insects logged in Bavarian Forest National Park (8 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.
