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Sticker of Grey house spider
Bug card No. 2120 of 4,939

Grey house spider

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

The grey house spider is a medium-sized spider covered in light grey hairs, with purplish brown striped legs. It lives close to people, in window frames, walls and rubbish bins. It builds a messy web that spreads out from a crack like a ladder.

Fun fact: spiders are not insects. Insects have six legs, spiders have eight. Everyone calls them bugs anyway!
Lives in
From eastern Australia, now in New Zealand, Japan, the Americas, South Africa and parts of Europe
Length
1.1 to 1.5 cm (0.43 to 0.59 in)
Top speed
about 1.5 km/h (0.93 mph)
On foot, estimate
What does it eat?
It catches insects that get tangled in its messy web.
For real!Photo of Grey house spider
Picture by Campoplex. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Grey house spider about 1.5 cm long (0.59 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)
as long as 2.5 grains of rice in a rowcould run across a dinner table in 2.4 secondsmoves 28 times its own body length every second

How big is Grey house spider compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It hides in a crack and spins zig-zag ladder-like threads out from it.

2

A female can spend her whole life in the same web. The male leaves home only to find a mate.

3

Baby spiders can fly away on the wind by letting out a long silk thread, like a tiny kite.

4

It has hitched rides around the world on ships, trains, planes and goods.

5

It has even been found living inside artificial flowers in cemeteries.

you asked

Most asked questions about Grey house spider

?Where does the grey house spider live?

Mostly near people, in window frames, walls, bins and gardens.

For bug experts

Scientific name
Badumna longinqua
Group
Spiders
Family
Desidae
Classification
Arachnida > Araneae > Desidae
Lives on
Australia and Oceania, Asia, North America, South America, Africa, Europe

Where the facts come from

  1. Badumna longinqua (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 Campoplex. 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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