Xylotrupes socrates
In 3 days ~30% in a week ~60%
Xylotrupes socrates, commonly known as the Siamese rhinoceros beetle or fighting beetle (Thai: กว่างชน), is a species of large scarab beetle belonging to the subfamily Dynastinae. It is particularly known for its role in insect fighting in Thailand.
Like most dynastid beetles, the adult male of X. socrates possesses two horns: one on the head and another on the pronotum, both bifurcate and curling inward. Adult females lack these horns. Both sexes have dark chestnut-brown (in younger beetles) or black (in older beetles) exoskeletons and elytra.
The species is widespread in south-east Asian countries such as Bangladesh, Cambodia, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam. These beetles are used for staging beetle fights, a traditional form of entertainment popular in the northern region of Thailand. They are captured and trained to become stronger and more aggressive. In the fight the beetle that lifts its opponent up by its horns wins. A beetle may also win if his opponent crawls away, falls, or is overturned. Insect fighting is mostly practiced in the Chiang Mai and Nan provinces of Thailand. It is also popular... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 3 | Khao Sok National Park | 🇹🇭 Thailand | |
| 4 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Xiamen City | 🇨🇳 China | |
| 2 | Tuen Mun | 🇨🇳 China | |
| 3 | Guangzhou | 🇨🇳 China | |
| 4 | Hong Kong | 🇨🇳 China | |
| 5 | Bangkok | 🇹🇭 Thailand |
With luck
About 10% of wildlife watchers report a Siamese Rhinoceros Beetle sighting in Xiamen City on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 28th most-seen of the 59 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July and August
In those months about 30% of wildlife watchers report a Siamese Rhinoceros Beetle in Xiamen City on a given day, against under 5% in September to June, the lowest months. Those are among Xiamen City's wettest months, with about 160 mm of rain a month against 40 mm in October.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Siamese Rhinoceros 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 5 cities where we can rate Siamese Rhinoceros Beetle sightings, Xiamen City has the highest daily chance: about 10%. Next come Tuen Mun (China, about 10%) and Guangzhou (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Siamese Rhinoceros Beetle is recorded against all the insects logged in Xiamen City (7 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.
