What are the chances of seeing a Truffle Blacklet in London?
Rare
Under 5% of wildlife watchers report a Truffle Blacklet sighting in London on a given day, based on 47 verified sightings from GBIF citizen-science data. It is the 505th 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 30%, if each day is a fresh chance.
When is the best time to see a Truffle Blacklet in London?
June to August
In those months about 10% of wildlife watchers report a Truffle Blacklet in London on a given day, against under 5% in September to May, the lowest months.
Where else can you see a Truffle Blacklet?
Only London, in our data
London is the only city on Wallace's Line with enough records to rate Truffle Blacklet sightings: under 5% of wildlife watchers there report one on a given day.
Where does the Truffle Blacklet sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Truffle Blacklet is recorded against all the insects logged in London (47 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.