Yellow-Haired Sun Fly

Yellow-Haired Sun Fly

Myathropa florea

Daily sighting probability ~40% · Likely
at Birmingham

In 3 days ~70% in a week >90%

580 Verified sightings at Birmingham
150 In all 8 parks From 2019 to 2026
August Best month
☀️ Diurnal When it's spotted

About the Yellow-Haired Sun Fly

Myathropa florea, sometimes referred to as the Yellow-haired Sun Fly or the Batman hoverfly, is a very common European and North African species of hoverfly. Adults may be seen on flowers from May to September. It is of a similar size to the common drone fly (Eristalis tenax), but M. florea is generally more yellow, with two light bands to the thorax, interrupted with a black central smudge. In museum specimens, any yellow colour soon fades to brown after death. Like most species in the tribe Eristalini, M. florea is rather variable in size, shape and colour.

For terms see Morphology of Diptera The species has a wing length of 7–12 mm (0.3–0.5 in). Thorax dorsum with a characteristic "skull" black pattern. Abdomen black with yellow patterning. Legs pale and black. The larvae of the species were described and figured by Graham E. Rotheray in 1993.

See references for determination. Myathropa florea is found in the Palearctic from Fennoscandia south to Iberia and the Mediterranean basin, and from Ireland eastwards across Europe and Russia. It has been adventive on the Pacific coast of North America since 2005.

They occur in deciduous... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Bavarian Forest National Park 🇩🇪 Germany
~20%
2 Triglav National Park 🇸🇮 Slovenia
~10%
3 Snowdonia National Park 🇬🇧 United Kingdom
~10%
4 Cévennes National Park 🇫🇷 France
~10%
5 Wadden Sea National Park 🇩🇪 Germany
~10%
6 Pyrénées National Park 🇫🇷 France
~10%
7 Cairngorms National Park 🇬🇧 United Kingdom
~10%
8 Great Bear Rainforest 🇨🇦 Canada
<5%

Cities Where Found

# City Country Daily sighting probability
1 London 🇬🇧 United Kingdom
~40%
2 Birmingham 🇬🇧 United Kingdom
~40%
3 Liverpool 🇬🇧 United Kingdom
~30%
4 Manchester 🇬🇧 United Kingdom
~20%
5 Copenhagen 🇩🇰 Denmark
~20%
6 Paris 🇫🇷 France
~20%
7 Kharkiv 🇺🇦 Ukraine
~20%
8 Ankara 🇹🇷 Turkey
~20%
9 Dublin 🇮🇪 Ireland
~20%
10 Leeds 🇬🇧 United Kingdom
~20%

Before you go

What are the chances of seeing a Yellow-Haired Sun Fly in Birmingham?

Likely

About 40% of wildlife watchers report a Yellow-Haired Sun Fly sighting in Birmingham on a given day, based on 580 verified sightings from GBIF citizen-science data. It is the 6th most-seen of the 811 insects we can rate there. Over three days the chance rises to about 70%, and over a week to over 90%, if each day is a fresh chance.

When is the best time to see a Yellow-Haired Sun Fly in Birmingham?

August

In that month about 50% of wildlife watchers report a Yellow-Haired Sun Fly in Birmingham on a given day, against under 5% in November to February, the lowest months.

What time of day is best to see a Yellow-Haired Sun Fly?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Yellow-Haired Sun Fly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Birmingham the best place to see a Yellow-Haired Sun Fly?

Among the best

Of the 49 cities where we can rate Yellow-Haired Sun Fly sightings, Birmingham ranks 2nd at about 40%, level with the leaders once rounded. The best odds are in London (United Kingdom, about 40%).

Which relatives of the Yellow-Haired Sun Fly live in Birmingham?

Same family: Syrphidae

The closest relatives of the Yellow-Haired Sun Fly that you can see in Birmingham (family Syrphidae, Hover Flies) are Marmalade Hover Fly (about 30%), Tapered Drone Fly (about 30%) and Sun Fly (about 30%), with each one's daily chance of a sighting.

Where does the Yellow-Haired Sun Fly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Yellow-Haired Sun Fly is recorded against all the insects logged in Birmingham (580 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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