Hypena rostralis
In 3 days ~10% in a week ~30%
Hypena rostralis, the buttoned snout, is a moth of the family Erebidae. It is found in Europe far into Scandinavia.Then through the Palearctic into Asia Minor, the Caucasus and east to Siberia. It is widespread at forest edges, forest clearings, shore areas, in gardens, park landscapes and cultivated land and rises in the mountains up to 1600 m. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Biebrza National Park | 🇵🇱 Poland | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany |
With luck
About 10% of wildlife watchers report a Buttoned Snout sighting in Cévennes National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 666th most-seen of the 996 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.
December
In that month about 20% of wildlife watchers report a Buttoned Snout in Cévennes National Park on a given day, against under 5% in January to August, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Buttoned Snout sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
2nd of 3
Of the 3 parks where we can rate Buttoned Snout sightings, Cévennes National Park ranks 2nd at about 10%. The best odds are in Biebrza National Park (Poland, about 20%).
GBIF citizen-science records
It is estimated from how often the Buttoned Snout is recorded against all the insects logged in Cévennes 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.
