Pentatoma japonica
In 3 days ~70% in a week ~90%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sapporo | 🇯🇵 Japan |
Possible
About 30% of wildlife watchers report a Japanese Stink Bug sighting in Nikko National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 5th most-seen of the 86 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
September
In that month about 50% of wildlife watchers report a Japanese Stink Bug in Nikko National Park on a given day, against under 5% in April–May and November, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Japanese Stink Bug sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Nikko National Park, in our data
Nikko National Park is the only park on Wallace's Line with enough records to rate Japanese Stink Bug sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Japanese Stink Bug is recorded against all the insects logged in Nikko National Park (15 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.
