Dilophus febrilis
In 3 days ~20% in a week ~30%
Dilophus febrilis is a species of fever fly in the family Bibionidae. It is found in the Palearctic. 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 | Helsinki | 🇫🇮 Finland | |
| 2 | Liverpool | 🇬🇧 United Kingdom | |
| 3 | Manchester | 🇬🇧 United Kingdom | |
| 4 | Hamburg | 🇩🇪 Germany | |
| 5 | Paris | 🇫🇷 France | |
| 6 | Berlin | 🇩🇪 Germany | |
| 7 | Vienna | 🇦🇹 Austria | |
| 8 | London | 🇬🇧 United Kingdom | |
| 9 | Saint Petersburg | 🇷🇺 Russia |
With luck
About 10% of wildlife watchers report a Fever Fly sighting in Helsinki on a given day, based on 23 verified sightings from GBIF citizen-science data. It is the 251st most-seen of the 838 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.
May–June and August–September
In those months about 10% of wildlife watchers report a Fever Fly in Helsinki on a given day, against under 5% in July and October–April, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Fever Fly sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 9 cities where we can rate Fever Fly sightings, Helsinki has the highest daily chance: about 10%. Next come Liverpool (United Kingdom, under 5%) and Manchester (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Fever Fly is recorded against all the insects logged in Helsinki (23 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.
