Cheilosia illustrata
In 3 days ~20% in a week ~30%
Cheilosia illustrata is a species of hoverfly belonging to the family Syrphidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | Liverpool | 🇬🇧 United Kingdom | |
| 3 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 4 | Amsterdam | 🇳🇱 Netherlands | |
| 5 | Manchester | 🇬🇧 United Kingdom | |
| 6 | Leeds | 🇬🇧 United Kingdom | |
| 7 | London | 🇬🇧 United Kingdom | |
| 8 | Moscow | 🇷🇺 Russia |
With luck
About 10% of wildlife watchers report a Bumblebee Blacklet sighting in Amsterdam on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 151st most-seen of the 234 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report a Bumblebee Blacklet in Amsterdam on a given day, against under 5% in September to May, the lowest months.
Among the best
Of the 8 cities where we can rate Bumblebee Blacklet sightings, Amsterdam ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Birmingham (United Kingdom, about 10%), Liverpool (United Kingdom, about 10%) and Rotterdam [The Hague] (Netherlands, about 10%).
GBIF citizen-science records
It is estimated from how often the Bumblebee Blacklet is recorded against all the insects logged in Amsterdam (8 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.
