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Sticker of Common striped woodlouse
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Common striped woodlouse

Philoscia muscorum
Eats: Leftovers and dead thingsWoodliceGardens and meadows14 legsNot an insect, but a bug cousin

The common striped woodlouse is a shiny, speckled grey-brown woodlouse with a very dark head. It stands up higher on its legs than other woodlice. That helps it run faster than most of them.

Fun fact: woodlice are not insects. They are crustaceans, cousins of crabs and shrimps, that live on land.
Lives in
All over Europe, and now also in parts of North America, in damp gardens and under leaves
Length
1.1 cm (0.43 in)
Top speed
about 0.14 km/h (0.09 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It cannot bite or sting. Put it back somewhere damp after you look at it.
What does it eat?
Like other woodlice, it eats dead leaves and rotting plants, which helps turn them back into soil.
For real!Photo of Common striped woodlouse
Picture by AJC1 from UK. CC BY-SA 2.0, via Wikimedia Commons.

How big is it?

How long is it?

Common striped woodlouse about 1.1 cm long (0.43 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
as long as 2 grains of rice in a rowit has about 14 legscould run across a dinner table in 26 seconds

How big is Common striped woodlouse compared to YOU?

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

How fast is it?

cool stuff

Fun facts

1

Its other name is the fast woodlouse, because it is quicker than other common woodlice.

2

Most are brown or grey, but some are yellow, red or orange.

3

A woodlouse is not an insect. It is a crustacean, a land cousin of crabs and shrimps, with 14 legs.

4

People carried it from Europe to North America, where it now lives in several states.

you asked

Most asked questions about Common striped woodlouse

?Is the striped woodlouse an insect?

No. It is a crustacean, related to crabs and shrimps, and it has 14 legs.

?How big is the common striped woodlouse?

It grows up to about 11 mm long, about as long as your fingernail.

?Is the common striped woodlouse harmful?

No. It is harmless and helps break down dead leaves.

For bug experts

Scientific name
Philoscia muscorum
Group
Woodlice
Family
Philosciidae
Classification
Malacostraca > Isopoda > Philosciidae
Lives on
Europe, North America
Also known as
Fast woodlouse

Where the facts come from

  1. Philoscia muscorum (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 AJC1 from UK. CC BY-SA 2.0, 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: Woodlice

Also at home here: Gardens and meadows