Acronicta alni
In 3 days ~10% in a week ~20%
Acronicta alni, the alder moth, is a moth of the family Noctuidae. It is found in Europe (from southern Fennoscandia to Spain, Italy and the Balkans), Turkey, the European part of Russia and the neighbouring countries, the Caucasus, the Ural, southern Siberia, Transbaikalia, the Russian Far East (Primorye, Sakhalin, southern Kuriles, Khabarovsk and the Amur region), China, Japan (Hokkaido and Honshu) and the Korean Peninsula. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan | |
| 2 | Triglav National Park | 🇸🇮 Slovenia | |
| 3 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Cévennes National Park | 🇫🇷 France | |
| 6 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Helsinki | 🇫🇮 Finland | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Essen | 🇩🇪 Germany | |
| 4 | Moscow | 🇷🇺 Russia | |
| 5 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report an Alder Moth sighting in Pyrénées National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 869th most-seen of the 1277 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
May and June
In those months about 10% of wildlife watchers report an Alder Moth in Pyrénées National Park on a given day, against under 5% in July to April, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Alder Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
6th of 6
Of the 6 parks where we can rate Alder Moth sightings, Pyrénées National Park ranks 6th at under 5%. The best odds are in Nikko National Park (Japan, about 20%), Triglav National Park (Slovenia, about 10%) and Snowdonia National Park (United Kingdom, about 10%).
Same genus: Acronicta
The closest relatives of the Alder Moth that you can see in Pyrénées National Park (genus Acronicta, Dagger Moths) are Knot Grass Moth (about 10%) and Sweet Gale Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Alder Moth is recorded against all the insects logged in Pyrénées 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.
