What are the chances of seeing a Cheilosia scutellata in London?
Rare
Under 5% of wildlife watchers report a Cheilosia scutellata sighting in London on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 1300th most-seen of the 1504 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
When is the best time to see a Cheilosia scutellata in London?
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Cheilosia scutellata in London on a given day, so our monthly data shows no clear season.
Where else can you see a Cheilosia scutellata?
Only London, in our data
London is the only city on Wallace's Line with enough records to rate Cheilosia scutellata sightings: under 5% of wildlife watchers there report one on a given day.
Where does the Cheilosia scutellata sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Cheilosia scutellata is recorded against all the insects logged in London (6 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.