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Sticker of Regal blowfly
Bug card No. 3615 of 4,939

Regal blowfly

Chrysomya marginalis

The regal blowfly is a big, chunky fly that shines like a jewel. Its body glows blue, green or violet, depending on how the light hits it. Its head is pale yellow with large red eyes.

Lives in
Africa south of the Sahara and parts of the Middle East
Length
1.8 cm (0.71 in)
Top speed
about 12 km/h (7.5 mph)
Flying, estimate
Can it hurt you?
Harmless
It does not bite or sting. Flies land on dirty things, so keep it away from your food.
What does it eat?
Like other blowflies, its maggots grow up eating dead animals. That helps clean up nature.
For real!Photo of Regal blowfly
Picture by JMK. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Regal blowfly 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 Regal blowfly compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Its wings are clear like little windows, with a dark stripe along the front edge. That stripe is how experts tell it apart from a look-alike fly.

2

The male's two big eyes are so large that they touch each other on top of its head.

3

On top of its head it has three extra tiny eyes, set in a triangle.

4

It is quite rare, and at about 18 millimetres long it is a big fly.

you asked

Most asked questions about Regal blowfly

?Is the regal blowfly dangerous?

No. It cannot sting or bite you. Just keep flies away from your food.

?Why is the regal blowfly so shiny?

Its body reflects light in blue, green and violet. The colour seems to change as you look at it from different sides.

For bug experts

Scientific name
Chrysomya marginalis
Named by
Wiedemann, 1830
Group
Flies and mosquitoes
Family
Calliphoridae
Classification
Insecta > Diptera > Calliphoridae
Lives on
Africa, Asia
Also known as
Regal bluebottle, Bordered blowfly

Where the facts come from

  1. Chrysomya marginalis (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 JMK. 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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