Centrotus cornuta
In 3 days ~10% in a week ~20%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Triglav National Park | 🇸🇮 Slovenia | |
| 2 | Mercantour National Park | 🇫🇷 France | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Cévennes National Park | 🇫🇷 France | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kyiv | 🇺🇦 Ukraine | |
| 2 | Lyon | 🇫🇷 France | |
| 3 | Novosibirsk | 🇷🇺 Russia | |
| 4 | Vienna | 🇦🇹 Austria | |
| 5 | Nizhny Novgorod | 🇷🇺 Russia | |
| 6 | Copenhagen | 🇩🇰 Denmark | |
| 7 | Moscow | 🇷🇺 Russia | |
| 8 | Paris | 🇫🇷 France | |
| 9 | Saint Petersburg | 🇷🇺 Russia | |
| 10 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Horned Treehopper sighting in Vienna on a given day, based on 27 verified sightings from GBIF citizen-science data. It is the 505th 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 20%, if each day is a fresh chance.
May and June
In those months about 10% of wildlife watchers report a Horned Treehopper in Vienna on a given day, against under 5% in July to April, the lowest months. Those are among Vienna's wettest months, with about 90 mm of rain a month against 40 mm in February.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Horned Treehopper sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 10
Of the 10 cities where we can rate Horned Treehopper sightings, Vienna ranks 4th at under 5%. The best odds are in Kyiv (Ukraine, about 10%), Lyon (France, under 5%) and Novosibirsk (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Horned Treehopper is recorded against all the insects logged in Vienna (27 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.
