Vespa basalis
In 3 days ~50% in a week ~80%
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.
Possible
About 20% of wildlife watchers report a Black-Bellied Hornet sighting in Dehradun on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 30th most-seen of the 73 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.
November
In that month about 40% of wildlife watchers report a Black-Bellied Hornet in Dehradun on a given day, against under 5% in May–August and December–March, the lowest months. That is one of Dehradun's driest months, with about 5 mm of rain against 370 mm in July.
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.
Among the best
Of the 4 cities where we can rate Black-Bellied Hornet sightings, Dehradun ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Nanjing (China, about 20%).
Same genus: Vespa
The closest relatives of the Black-Bellied Hornet that you can see in Dehradun (genus Vespa, Hornets) are Yellow-Legged Hornet (about 10%) and Greater 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 Dehradun (10 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.
