Oryctes nasicornis
In 3 days ~60% in a week ~90%
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 |
Possible
About 30% of wildlife watchers report a European Rhinoceros Beetle sighting in Yerevan on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 7th most-seen of the 32 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
June to August
In those months about 40% of wildlife watchers report a European Rhinoceros Beetle in Yerevan on a given day, against under 5% in March–April and October–November, the lowest months.
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.
Among the best
Of the 36 cities where we can rate European Rhinoceros Beetle sightings, Yerevan ranks 2nd at about 30%, level with the leaders once rounded. The best odds are in Naples (Italy, about 30%).
Same family: Scarabaeidae
The closest relatives of the European Rhinoceros Beetle that you can see in Yerevan (family Scarabaeidae, Scarabs) are Pine Chafer (about 20%) and Copper Chafer (about 20%), 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 Yerevan (16 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.
