Chrysotoxum cautum
In 3 days ~10% in a week ~20%
Chrysotoxum cautum is a species of Palearctic hoverfly of the genus Chrysotoxum. The larvae are thought to feed on root aphids. Adults are usually found on the edges of woodland or scrub or along hedgerows where they visit a wide range of flowers, usually in small numbers. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Large Meadow Fly sighting in London on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 821st 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.
May
In that month about 10% of wildlife watchers report a Large Meadow Fly in London on a given day, against under 5% in June to April, the lowest months.
Yes
Of the 2 cities where we can rate Large Meadow Fly sightings, London has the highest daily chance: under 5%. Next come Vienna (Austria, under 5%).
Same genus: Chrysotoxum
The closest relatives of the Large Meadow Fly that you can see in London (genus Chrysotoxum, Meadow Flies) are Chrysotoxum bicincta (about 10%) and Hook-Barred Spearhorn (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Large Meadow Fly is recorded against all the insects logged in London (18 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.
