Dromius quadrimaculatus
In 3 days ~20% in a week ~40%
Dromius quadrimaculatus is a species of ground beetle native to the Palearctic (including Europe) and the Near East. In Europe, it is found in Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Corsica, the Czech Republic, mainland Denmark, Estonia, Finland, mainland France, Germany, Great Britain including the Isle of Man, mainland Greece, Hungary, the Republic of Ireland, mainland Italy, Kaliningrad, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Northern Ireland, North Macedonia, mainland Norway, Poland, Russia, Sardinia (doubtful), Slovakia, Slovenia, mainland Spain, Sweden, Switzerland, the Netherlands, Ukraine, and Yugoslavia. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Dromius quadrimaculatus sighting in Brussels on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 109th most-seen of the 337 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
December to March
In those months about 20% of wildlife watchers report a Dromius quadrimaculatus in Brussels on a given day, against under 5% in April–July and September–October, the lowest months.
Yes
Of the 7 cities where we can rate Dromius quadrimaculatus sightings, Brussels has the highest daily chance: about 10%. Next come Paris (France, under 5%) and London (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Dromius quadrimaculatus is recorded against all the insects logged in Brussels (17 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.
