Silhouette: Margot Michaud · PhyloPic
Vespula arisana
In 3 days ~10% in a week ~20%
Vespula arisana, also known as the Taiwan yellowjacket, and Taiwan hornet, is a species of wasp in the family Vespidae. It was described by Jinhaku Sonan in 1929. The species is endemic to the island of Taiwan, where its range covers the entire island. Not much is known about the species, because of its exclusivity and endemicity. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taipei | 🇹🇼 Taiwan |
Rare
Under 5% of wildlife watchers report a Taiwan Yellowjacket sighting in Taipei on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 473rd most-seen of the 765 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.
January
In that month about 10% of wildlife watchers report a Taiwan Yellowjacket in Taipei on a given day, against under 5% in February to December, the lowest months. That is one of Taipei's driest months, with about 95 mm of rain against 270 mm in June.
Only Taipei, in our data
Taipei is the only city on Wallace's Line with enough records to rate Taiwan Yellowjacket sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Vespidae
The closest relatives of the Taiwan Yellowjacket that you can see in Taipei (family Vespidae, Hornets, Paper Wasps, Potter Wasps, and Allies) are Black-Bellied Hornet (about 10%), Yellow-Legged Hornet (about 10%) and Black-Tailed Hornet (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Taiwan Yellowjacket is recorded against all the insects logged in Taipei (12 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.
