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Sticker of Anthracite bee-fly
Bug card No. 0117 of 4,939

Anthracite bee-fly

Anthrax anthrax

The anthracite bee-fly is a black fly with white spots on its body and wings that are mostly black. It hovers in the air in front of bee hotels. It is not looking for a room, it is looking for mason bee nests to lay its eggs in.

Lives in
Mainland Europe and parts of Asia and North Africa, in gardens and sunny places with bee nests
Length
1 cm (0.39 in)
Top speed
about 8.9 km/h (5.5 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless to people. It cannot sting.
What does it eat?
Its larvae crawl into mason bee nests and eat the bee larvae. The grown-up fly is sometimes seen hovering over flowers.
For real!Photo of Anthracite bee-fly
Picture by Sarefo. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Anthracite bee-fly about 1 cm long (0.39 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
small enough to sit on your fingernailas long as 1.5 grains of rice in a rowcould fly across a whole football pitch in 42 secondsmoves 250 times its own body length every second

How big is Anthracite bee-fly compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The female hovers in front of a bee nest and flicks her eggs into the entrance, like tiny shots.

2

Before that she rubs her body in dust or sand, which makes her eggs less sticky. She even has a special pocket for the sand.

3

Many bee-flies look like bees, but this one does not. It is black with white spots.

4

It was first found breeding in Britain in 2019.

you asked

Most asked questions about Anthracite bee-fly

?Does the anthracite bee-fly sting?

No. It is a fly and has no stinger.

?Why does it hang around bee hotels?

It lays its eggs at mason bee nests. Its larvae then feed on the bee larvae inside.

For bug experts

Scientific name
Anthrax anthrax
Group
Flies and mosquitoes
Family
Bombyliidae
Classification
Insecta > Diptera > Bombyliidae
Lives on
Europe, Asia, Africa

Where the facts come from

  1. Anthrax anthrax (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
  2. Picture by Sarefo. CC BY-SA 4.0, Wikimedia Commons. The sticker of this bug is drawn from this picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at [email protected] and we will fix it.

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