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Sticker of White pill woodlouse
Bug card No. 4735 of 4,939

White pill woodlouse

Armadillidium album
Eats: Leftovers and dead thingsWoodlicePonds, rivers and shores14 legsNot an insect, but a bug cousin

The white pill woodlouse is a tiny woodlouse that lives on sandy beaches in Europe. It is pale and speckled, just like the sand around it, so it is very hard to spot. It can even live where salty sea water washes over it.

Fun fact: woodlice are not insects. They are crustaceans, cousins of crabs and shrimps, that live on land.
Lives in
The coasts of Europe, in sand dunes and salt marshes
Length
7 mm (0.28 in)
at most
Top speed
about 0.11 km/h (0.07 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It is a tiny woodlouse that cannot bite or sting.
What does it eat?
It finds its food among the bits of seaweed, wood and other things that storms wash up on the beach.
For real!Photo of White pill woodlouse
Picture by Matthew Vosper. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

White pill woodlouse 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 fingernailit has about 14 legscould run across a dinner table in 33 seconds

How big is White pill woodlouse compared to YOU?

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

How fast is it?

cool stuff

Fun facts

1

When something scares it, it rolls up halfway and keeps a few legs sticking out to hold on to the ground.

2

It can dig 20 to 30 cm deep into the sand.

3

It likes to hide under driftwood that the waves have left on the beach.

4

A mother carries about eight eggs in a pouch under her body.

5

Its babies need a whole year to grow up, and it lives for about two years.

you asked

Most asked questions about White pill woodlouse

?Is the white pill woodlouse dangerous?

No. It is a tiny woodlouse that cannot bite or sting.

?Where does the white pill woodlouse live?

On the coasts of Europe, in sand dunes and salt marshes, often under driftwood.

?How big is a white pill woodlouse?

Very small, at most about 7 mm long.

For bug experts

Scientific name
Armadillidium album
Group
Woodlice
Family
Armadillidiidae
Classification
Malacostraca > Isopoda > Armadillidiidae
Lives on
Europe
Also known as
Beach pill woodlouse

Where the facts come from

  1. Armadillidium album (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 Matthew Vosper. CC BY 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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More from the same group: Woodlice

Also at home here: Ponds, rivers and shores

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