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Sticker of Dune robber fly
Bug card No. 1434 of 4,939

Dune robber fly

Philonicus albiceps

The dune robber fly is a light, silvery grey fly with black legs. It sits on bare sand in coastal dunes and waits. When another insect flies by, it zooms out and grabs it in the air.

Lives in
Parts of Europe, mostly on sandy dunes by the sea
Length
1.8 cm (0.71 in)
Top speed
about 12 km/h (7.5 mph)
Flying, estimate
Can it hurt you?
Harmless
It hunts insects, not people. Just watch it from close by without grabbing it.
What does it eat?
It catches other flies, bees and wasps, and even dragonflies and damselflies.
For real!Photo of Dune robber fly
Picture by Janet Graham. CC BY 2.0, via Wikimedia Commons.

How big is it?

How long is it?

Dune robber fly about 1.8 cm long (0.71 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)
as long as 3 grains of rice in a rowcould fly across a whole football pitch in 32 secondsmoves 190 times its own body length every second

How big is Dune robber fly compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It is brave enough to catch dragonflies and damselflies.

2

It sometimes even eats smaller robber flies.

3

It likes to sit on bare sand between tufts of marram grass.

4

Sometimes it lives on sandy places away from the sea too.

you asked

Most asked questions about Dune robber fly

?What does the dune robber fly eat?

Other insects, like flies, bees, wasps and even dragonflies.

?Where can you find the dune robber fly?

On sandy dunes by the sea in Europe, sitting on bare sand.

For bug experts

Scientific name
Philonicus albiceps
Group
Flies and mosquitoes
Family
Asilidae
Classification
Insecta > Diptera > Asilidae
Lives on
Europe

Where the facts come from

  1. Philonicus albiceps (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 Janet Graham. CC BY 2.0, 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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More from the same group: Flies and mosquitoes

Also at home here: Ponds, rivers and shores

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