Fever Fly

Fever Fly

Dilophus febrilis

Daily sighting probability <5% · Rare
at Manchester

In 3 days ~10% in a week ~20%

6 Verified sightings at Manchester
9 In 1 park From 2019 to 2026
January Best month
☀️ Diurnal When it's spotted

About the Fever Fly

Dilophus febrilis is a species of fever fly in the family Bibionidae. It is found in the Palearctic. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Wadden Sea National Park 🇩🇪 Germany
<5%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Helsinki 🇫🇮 Finland
~10%
2 Liverpool 🇬🇧 United Kingdom
<5%
3 Manchester 🇬🇧 United Kingdom
<5%
4 Hamburg 🇩🇪 Germany
<5%
5 Paris 🇫🇷 France
<5%
6 Berlin 🇩🇪 Germany
<5%
7 Vienna 🇦🇹 Austria
<5%
8 London 🇬🇧 United Kingdom
<5%
9 Saint Petersburg 🇷🇺 Russia
<5%

Before you go

What are the chances of seeing a Fever Fly in Manchester?

Rare

Under 5% of wildlife watchers report a Fever Fly sighting in Manchester on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 421st most-seen of the 458 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.

When is the best time to see a Fever Fly in Manchester?

January and April

In those months about 10% of wildlife watchers report a Fever Fly in Manchester on a given day, against under 5% in February–March and May–December, the lowest months.

What time of day is best to see a Fever Fly?

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.

Is Manchester the best place to see a Fever Fly?

3rd of 9

Of the 9 cities where we can rate Fever Fly sightings, Manchester ranks 3rd at under 5%. The best odds are in Helsinki (Finland, about 10%) and Liverpool (United Kingdom, under 5%).

Where does the Fever Fly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Fever Fly is recorded against all the insects logged in Manchester (6 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.

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