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Sticker of Eastern hornet fly
Bug card No. 1484 of 4,939

Eastern hornet fly

Spilomyia longicornis

The eastern hornet fly is a hoverfly dressed up as a wasp, black with yellow stripes. It even waves its black front legs above its head to look like a wasp's feelers. But it is a fly, and it cannot sting at all.

Lives in
Eastern North America, east of the Rocky Mountains
Length
1.1 to 1.5 cm (0.43 to 0.59 in)
Top speed
about 16 km/h (9.9 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It only pretends to be a wasp and cannot sting.
What does it eat?
The grown-ups drink nectar and eat pollen from flowers. The larvae grow up in wet, rotting holes in trees.
For real!Photo of Eastern hornet fly
Picture by Judy Gallagher. CC BY 2.0, via Wikimedia Commons.

How big is it?

How long is it?

Eastern hornet fly about 1.5 cm long (0.59 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 2.5 grains of rice in a rowcould fly across a whole football pitch in 24 secondsmoves 300 times its own body length every second

How big is Eastern hornet fly compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

When it is in danger, it bends its tail end the way a wasp does when it stings.

2

When it is scared, it even changes its buzzing to sound more like a wasp.

3

The front edges of its wings are darker brown, just like on a real wasp.

4

The females need pollen to be able to make eggs.

you asked

Most asked questions about Eastern hornet fly

?Can the eastern hornet fly sting?

No. It is a hoverfly that only looks like a wasp. It cannot sting.

?What does the eastern hornet fly eat?

The grown-ups eat pollen and drink nectar from flowers.

Myth buster

Myth: The eastern hornet fly is a wasp and will sting you.

Truth: No. It is a hoverfly that only looks like a wasp. It cannot sting.

For bug experts

Scientific name
Spilomyia longicornis
Group
Flies and mosquitoes
Family
Syrphidae
Classification
Insecta > Diptera > Syrphidae
Lives on
North America

Where the facts come from

  1. Spilomyia longicornis (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 Judy Gallagher. 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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