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Sticker of Wasp nest beetle
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Wasp nest beetle

Metoecus paradoxus

The wasp nest beetle is a dark beetle with orange, pointy wing cases and feathery feelers that look like long eyelashes. Its baby has a sneaky secret: it grows up inside a wasp nest. The grown-up beetle lives only about a week.

Lives in
Europe, wherever common wasps live
Length
1 cm (0.39 in)
Top speed
about 0.41 km/h (0.25 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It does not sting, even though it grows up among wasps.
What does it eat?
The larva eats a wasp larva inside the wasp nest. Grown-up beetles probably do not eat at all.
For real!Photo of Wasp nest beetle
Picture by mwkozlowski. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Wasp nest beetle 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 run across a dinner table in 8.8 seconds

How big is Wasp nest beetle compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

How fast is it?

cool stuff

Fun facts

1

The tiny newly hatched larva holds on to a worker wasp and rides it all the way into the nest.

2

Inside the nest it smells just like the wasps, so they do not notice the stranger.

3

Its wing cases are too short to cover its whole body.

4

Grown-up beetles live for just 6 to 12 days.

5

The mother lays her eggs in rotting wood in autumn.

you asked

Most asked questions about Wasp nest beetle

?What is the eyelash bug?

It is a nickname for the wasp nest beetle, because its feathery feelers look like long eyelashes.

?Is the wasp nest beetle dangerous?

No. It does not sting or bite people.

?How does the wasp nest beetle get into a wasp nest?

Its tiny larva clings to a wasp and gets a free ride into the nest.

For bug experts

Scientific name
Metoecus paradoxus
Group
Beetles
Family
Ripiphoridae
Classification
Insecta > Coleoptera > Ripiphoridae
Lives on
Europe
Also known as
Eyelash bug

Where the facts come from

  1. Metoecus paradoxus (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 mwkozlowski. CC BY-SA 3.0, Wikimedia Commons. The round sticker of this bug is cut from the same 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.

More from the same group: Beetles

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