What are the chances of seeing a Dryomyia circinans in Vienna?
Rare
Under 5% of wildlife watchers report a Dryomyia circinans sighting in Vienna on a given day, based on 27 verified sightings from GBIF citizen-science data. It is the 495th most-seen of the 1406 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 Dryomyia circinans in Vienna?
January and September–October
In those months about 10% of wildlife watchers report a Dryomyia circinans in Vienna on a given day, against under 5% in February–August and November–December, the lowest months.
Where else can you see a Dryomyia circinans?
Only Vienna, in our data
Vienna is the only city on Wallace's Line with enough records to rate Dryomyia circinans sightings: under 5% of wildlife watchers there report one on a given day.
Where does the Dryomyia circinans sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Dryomyia circinans is recorded against all the insects logged in Vienna (27 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.