Tholera decimalis
In 3 days ~10% in a week ~30%
Tholera decimalis, the feathered Gothic, is a species of moth of the family Noctuidae. It is found in Europe and Scandinavia then through the Palearctic to Asia minor, western Central Asia, southern Siberia and in North Africa. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Feathered Gothic sighting in Helsinki on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 445th most-seen of the 838 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.
August
In that month about 10% of wildlife watchers report a Feathered Gothic in Helsinki on a given day, against under 5% in September to July, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Feathered Gothic sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 6 cities where we can rate Feathered Gothic sightings, Helsinki has the highest daily chance: under 5%. Next come Prague (Czechia, under 5%) and Berlin (Germany, under 5%).
GBIF citizen-science records
It is estimated from how often the Feathered Gothic is recorded against all the insects logged in Helsinki (11 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.
