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Sticker of Common picture-winged fly
Bug card No. 1111 of 4,939

Common picture-winged fly

Delphinia picta
Name means: “painted (the Latin word picta)”

The common picture-winged fly has shiny wings painted with a dark brown pattern on clear glass. Its body is about as long as a grain of rice, with a black tail end and a light brown head. It likes places full of rotting plants.

Lives in
Eastern and central USA, also Mexico and El Salvador, wherever there are rotting plants
Length
7 mm (0.28 in)
Top speed
about 7.5 km/h (4.7 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It does not bite or sting.
What does it eat?
It eats rotting plants and leftovers, not fresh living plants.
For real!Photo of Common picture-winged fly
Picture by Jasper Shide. CC0, via Wikimedia Commons.

How big is it?

How long is it?

Common picture-winged fly about 7 mm long (0.28 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 fingernailcould fly across a whole football pitch in 50 secondsmoves 300 times its own body length every second

How big is Common picture-winged fly compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

When a pair meets, the female gently waves her wings and the male flicks his back.

2

During courtship one or both flies may blow a little bubble from their mouth.

3

A female can lay up to 500 eggs in rotting plants.

4

People sometimes think it is a fruit fly, but it does not eat living plants.

you asked

Most asked questions about Common picture-winged fly

?Is the picture-winged fly a pest?

No. It eats rotting plants, not fresh ones, so it does not harm gardens.

?Why is it called picture-winged?

Its clear wings have a dark brown pattern that looks like a painted picture.

For bug experts

Scientific name
Delphinia picta
Group
Flies and mosquitoes
Family
Ulidiidae
Classification
Insecta > Diptera > Ulidiidae
Lives on
North America

Where the facts come from

  1. Delphinia picta (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 Jasper Shide. CC0, 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: Forests and woods

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