Vespa basalis
In 3 days ~40% in a week ~70%
The black-bellied hornet (Vespa basalis) is a species of hornet native to Taiwan. It is one of the most dangerous species of hornet on the island, and its venom induces edema. Colonies may have as many as 5,000 individual hornets. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Black-Bellied Hornet sighting in Taipei on a given day, based on 234 verified sightings from GBIF citizen-science data. It is the 45th most-seen of the 765 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
June to October
In those months about 20% of wildlife watchers report a Black-Bellied Hornet in Taipei on a given day, against under 5% in April, the lowest month.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Black-Bellied Hornet sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 4
Of the 4 cities where we can rate Black-Bellied Hornet sightings, Taipei ranks 3rd at about 10%. The best odds are in Nanjing (China, about 20%) and Dehradun (India, about 20%).
Same genus: Vespa
The closest relatives of the Black-Bellied Hornet that you can see in Taipei (genus Vespa, Hornets) are Yellow-Legged Hornet (about 10%), Black-Tailed Hornet (about 10%) and Lesser Banded Hornet (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black-Bellied Hornet is recorded against all the insects logged in Taipei (234 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.
