What are the chances of seeing a Brachysteles parvicornis in Brussels?
Rare
Under 5% of wildlife watchers report a Brachysteles parvicornis sighting in Brussels on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 295th most-seen of the 337 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.
When is the best time to see a Brachysteles parvicornis in Brussels?
March and November–December
In those months about 10% of wildlife watchers report a Brachysteles parvicornis in Brussels on a given day, against under 5% in January–February and April–October, the lowest months.
Where else can you see a Brachysteles parvicornis?
Only Brussels, in our data
Brussels is the only city on Wallace's Line with enough records to rate Brachysteles parvicornis sightings: under 5% of wildlife watchers there report one on a given day.
Where does the Brachysteles parvicornis sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Brachysteles parvicornis is recorded against all the insects logged in Brussels (5 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.