Chalcosoma atlas
In 3 days ~50% in a week ~80%
The Atlas beetle (Chalcosoma atlas) is a very large species of beetle in the family Scarabaeidae, found in Southeast Asia. Males have three prominent horns. The species is named for Atlas, the giant of Greek mythology who supported the skies. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Kinabalu Park | 🇲🇾 Malaysia | |
| 3 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 4 | Gunung Leuser National Park | 🇮🇩 Indonesia |
Possible
About 20% of wildlife watchers report an Atlas Beetle sighting in Khao Yai National Park on a given day, based on 35 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 221 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
September
In that month about 50% of wildlife watchers report an Atlas Beetle in Khao Yai National Park on a given day, against under 5% in February–April and November–December, the lowest months. That is one of Khao Yai National Park's wettest months, with about 330 mm of rain against 15 mm in December.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Atlas Beetle sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 4 parks where we can rate Atlas Beetle sightings, Khao Yai National Park has the highest daily chance: about 20%. Next come Kinabalu Park (Malaysia, about 20%) and Danum Valley Conservation Area (Malaysia, about 20%).
Same family: Scarabaeidae
The closest relatives of the Atlas Beetle that you can see in Khao Yai National Park (family Scarabaeidae, Scarabs) are Siamese Rhinoceros Beetle (about 10%), Sovereign Large Dung Beetle (about 10%) and Cheirotonus gestroi (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Atlas Beetle is recorded against all the insects logged in Khao Yai National Park (35 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.
