Oryctes nasicornis
In 3 days ~30% in a week ~50%
The European rhinoceros beetle (Oryctes nasicornis) is a large flying beetle belonging to the subfamily Dynastinae. The elytra are reddish brown... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 3 | Pyrénées National Park | 🇫🇷 France | |
| 4 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
With luck
About 10% of wildlife watchers report a European Rhinoceros Beetle sighting in Prague on a given day, based on 79 verified sightings from GBIF citizen-science data. It is the 67th most-seen of the 724 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report a European Rhinoceros Beetle in Prague on a given day, against under 5% in August and December–March, the lowest months. That is one of Prague's wettest months, with about 80 mm of rain against 30 mm in February.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most European Rhinoceros Beetle 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.
16th of 36
Of the 36 cities where we can rate European Rhinoceros Beetle sightings, Prague ranks 16th at about 10%. The best odds are in Naples (Italy, about 30%), Yerevan (Armenia, about 30%) and Rome (Italy, about 30%).
Same family: Scarabaeidae
The closest relatives of the European Rhinoceros Beetle that you can see in Prague (family Scarabaeidae, Scarabs) are European Rose Chafer (about 20%), Mediterranean Spotted Chafer (about 20%) and Valgus hemipterus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the European Rhinoceros Beetle is recorded against all the insects logged in Prague (79 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.
