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 Vienna on a given day, based on 47 verified sightings from GBIF citizen-science data. It is the 341st most-seen of the 1406 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.
March and August–December
In those months about 10% of wildlife watchers report a Buttoned Snout in Vienna on a given day, against under 5% in January–February and April–July, 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.
Among the best
Of the 13 cities where we can rate Buttoned Snout sightings, Vienna ranks 5th at about 10%, level with the leaders once rounded. The best odds are in Kyiv (Ukraine, about 10%), Berlin (Germany, about 10%) and Almaty (Kazakhstan, about 10%).
Same family: Erebidae
The closest relatives of the Buttoned Snout that you can see in Vienna (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Nine-Spotted Moth (about 10%), Four-Spotted Moth (about 10%) and Jersey Tiger (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Buttoned Snout is recorded against all the insects logged in Vienna (47 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.
