Nepa cinerea
In 3 days ~30% in a week ~60%
Nepa cinerea is a species of water scorpion (Nepidae), found in most of Europe, including the British Isles, as well as North Africa and southern and northern Asia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Monfragüe National Park | 🇪🇸 Spain | |
| 3 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France | |
| 6 | Wadden Sea National Park | 🇩🇪 Germany | |
| 7 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Copenhagen | 🇩🇰 Denmark | |
| 4 | Manchester | 🇬🇧 United Kingdom | |
| 5 | Cologne | 🇩🇪 Germany | |
| 6 | Minsk | 🇧🇾 Belarus | |
| 7 | Madrid | 🇪🇸 Spain | |
| 8 | Essen | 🇩🇪 Germany | |
| 9 | Prague | 🇨🇿 Czechia | |
| 10 | Kyiv | 🇺🇦 Ukraine |
With luck
About 10% of wildlife watchers report a Eurasian Water Scorpion sighting in Cévennes National Park on a given day, based on 40 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 168th most-seen of the 996 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
June and August
In those months about 20% of wildlife watchers report a Eurasian Water Scorpion in Cévennes National Park on a given day, against under 5% in November to February, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Eurasian Water Scorpion sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 7 parks where we can rate Eurasian Water Scorpion sightings, Cévennes National Park has the highest daily chance: about 10%. Next come Monfragüe National Park (Spain, about 10%) and Fertő-Hanság National Park (Hungary, about 10%).
GBIF citizen-science records
It is estimated from how often the Eurasian Water Scorpion is recorded against all the insects logged in Cévennes National Park (40 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.
