Stenodema calcarata
In 3 days ~10% in a week ~30%
Stenodema calcarata, also known as the two-spined grass bug, is a species of bug from Miridae family, that can be found in Europe and across the Palearctic to Central Asia, the Russian Far East, Siberia, northern China, Korea and Japan. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Seoul | 🇰🇷 South Korea | |
| 3 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 4 | Helsinki | 🇫🇮 Finland | |
| 5 | Birmingham | 🇬🇧 United Kingdom | |
| 6 | London | 🇬🇧 United Kingdom | |
| 7 | Berlin | 🇩🇪 Germany | |
| 8 | Vienna | 🇦🇹 Austria |
Rare
Under 5% of wildlife watchers report a Two-Spined Grass Bug sighting in Seoul on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 268th most-seen of the 525 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March and June–July
In those months about 10% of wildlife watchers report a Two-Spined Grass Bug in Seoul on a given day, against under 5% in April–May and August–February, the lowest months. Those are among Seoul's wettest months, with about 170 mm of rain a month against 20 mm in January.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Two-Spined Grass 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.
2nd of 8
Of the 8 cities where we can rate Two-Spined Grass Bug sightings, Seoul ranks 2nd at under 5%. The best odds are in Liverpool (United Kingdom, about 10%).
Same family: Miridae
The closest relatives of the Two-Spined Grass Bug that you can see in Seoul (family Miridae, Plant Bugs) are Deraeocoris sanghonami (about 10%) and Adelphocoris suturalis (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Two-Spined Grass Bug is recorded against all the insects logged in Seoul (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.
