Xyloryctes thestalus
In 3 days ~10% in a week ~20%
Xyloryctes thestalus is a species of rhinoceros beetle in the family Scarabaeidae. These two subspecies belong to the species Xyloryctes thestalus: Xyloryctes thestalus borealis Endrödi, 1975 Xyloryctes thestalus thestalus Bates, 1888 Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zion National Park | 🇺🇸 United States | |
| 2 | Saguaro National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Puebla | 🇲🇽 México | |
| 2 | Mexico City | 🇲🇽 México |
Rare
Under 5% of wildlife watchers report a Western Rhinoceros Beetle sighting in Mexico City on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 237th most-seen of the 557 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.
June and August
In those months about 10% of wildlife watchers report a Western Rhinoceros Beetle in Mexico City on a given day, against under 5% in July and September–May, the lowest months. Those are among Mexico City's wettest months, with about 140 mm of rain a month against 5 mm in December.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Western Rhinoceros Beetle sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 cities where we can rate Western Rhinoceros Beetle sightings, Mexico City ranks 2nd at under 5%. The best odds are in Puebla (México, about 10%).
Same family: Scarabaeidae
The closest relatives of the Western Rhinoceros Beetle that you can see in Mexico City (family Scarabaeidae, Scarabs) are Euphoria basalis (about 30%), Figeater Beetle (about 20%) and Aloeus Ox Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Rhinoceros Beetle is recorded against all the insects logged in Mexico City (24 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.
