Bug Wiki
Sticker of Wall spider
Bug card No. 4612 of 4,939

Wall spider

Oecobius navus
Eats: Other bugs and small animalsSpidersHouses and farms8 legsNot an insect, but a bug cousin

The wall spider is a tiny, flat spider with a round body and short legs. It spins a small flat web in the corners of walls and ceilings. It hunts in a very special way: it runs in circles around its prey.

Fun fact: spiders are not insects. Insects have six legs, spiders have eight. Everyone calls them bugs anyway!
Lives in
First from Europe and North Africa, now in houses all around the world
Length
2 to 2.5 mm (0.08 to 0.1 in)
Top speed
about 0.6 km/h (0.37 mph)
On foot, estimate
What does it eat?
It catches tiny insects by running around them and wrapping them in ribbons of sticky silk.
For real!Photo of Wall spider
Picture by Peter Webb. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Wall spider about 2.5 mm long (0.1 in)A grain of rice about 6 mm (0.24 in)
2.5 of them in a row are as long as one grain of ricecould run across a dinner table in 6 secondsmoves 67 times its own body length every second

How big is Wall spider compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Its little flat web is only about 3 centimetres wide.

2

Its body is only 2 to 2.5 millimetres long, smaller than a grain of rice.

3

The mother spins several tiny egg sacs with 3 to 10 eggs in each, and then leaves them.

4

Two of its eight eyes are just flat silvery patches.

For bug experts

Scientific name
Oecobius navus
Group
Spiders
Family
Oecobiidae
Classification
Arachnida > Araneae > Oecobiidae
Lives on
Europe, Africa, Asia, Australia and Oceania, North America, South America
Also known as
Baseboard spider, Stucco spider

Where the facts come from

  1. Oecobius navus (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 Peter Webb. 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: Spiders

Also at home here: Houses and farms

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