Nephrotoma quadrifaria
In 3 days ~20% in a week ~40%
Nephrotoma quadrifaria, also known as the four-spotted cranefly, is a species of true cranefly found in most of Europe and Great Britain. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 2 | Leeds | 🇬🇧 United Kingdom | |
| 3 | Birmingham | 🇬🇧 United Kingdom | |
| 4 | London | 🇬🇧 United Kingdom | |
| 5 | Liverpool | 🇬🇧 United Kingdom | |
| 6 | Paris | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Four-Spotted Cranefly sighting in Rotterdam [The Hague] on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 140th most-seen of the 355 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April to June
In those months about 10% of wildlife watchers report a Four-Spotted Cranefly in Rotterdam [The Hague] on a given day, against under 5% in July to March, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Four-Spotted Cranefly sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 6 cities where we can rate Four-Spotted Cranefly sightings, Rotterdam [The Hague] has the highest daily chance: about 10%. Next come Leeds (United Kingdom, about 10%) and Birmingham (United Kingdom, about 10%).
GBIF citizen-science records
It is estimated from how often the Four-Spotted Cranefly is recorded against all the insects logged in Rotterdam [The Hague] (12 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.
