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Sticker of Spurred ridgeback
Bug card No. 4148 of 4,939

Spurred ridgeback

Haplophthalmus danicus
Eats: Leftovers and dead thingsWoodliceGardens and meadows14 legsNot an insect, but a bug cousin

The spurred ridgeback is a tiny woodlouse. Woodlice are not insects at all but cousins of crabs and shrimps that live on land. It comes from Europe and Asia and likes damp, hidden places.

Fun fact: woodlice are not insects. They are crustaceans, cousins of crabs and shrimps, that live on land.
Lives in
Europe and Asia, and brought to North America, in damp soil and under logs and stones
Top speed
about 0.15 km/h (0.09 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It cannot bite or sting.
What does it eat?
Like other woodlice, it eats dead leaves and rotting plant bits, which helps to clean up the ground.
For real!Photo of Spurred ridgeback
Picture by This image is created by user Arp at Waarneming.nl , a source of nature observations in the Netherlands.. CC0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

Like all woodlice, it has 14 legs.

2

It was probably carried to North America by the first European settlers, and now it lives there too.

3

It has seven slightly different kinds.

you asked

Most asked questions about Spurred ridgeback

?Is the spurred ridgeback an insect?

No. It is a woodlouse, a land crustacean related to crabs and shrimps. It has 14 legs, not 6.

?Where does the spurred ridgeback live?

In Europe and Asia, and in North America where people brought it long ago.

For bug experts

Scientific name
Haplophthalmus danicus
Named by
Budde-Lund, 1880
Group
Woodlice
Family
Trichoniscidae
Classification
Malacostraca > Isopoda > Trichoniscidae
Lives on
Europe, Asia, North America
Also known as
Terrestrial cave isopod, Spurred ridgeback isopod

Where the facts come from

  1. Haplophthalmus danicus (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 This image is created by user Arp at Waarneming.nl , a source of nature observations in the Netherlands.. CC0, 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: Gardens and meadows

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