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Sticker of Brazilian wandering spider
Bug card No. 0182 of 1,500

Brazilian wandering spider

Phoneutria nigriventer
Eats: Other bugs and small animalsSpidersRainforests and jungles8 legsNot an insect, but a bug cousin

The Brazilian wandering spider is a big, hairy brown spider from South America. It does not build a web. Instead it wanders around at night and waits to pounce on its food. When it feels scared, it lifts its front legs high as a warning.

Fun fact: spiders are not insects. Insects have six legs, spiders have eight. Everyone calls them bugs anyway!
Lives in
Brazil, Uruguay, Paraguay and Argentina, in forests, banana plants and sometimes houses
Length
5 cm (2 in)
the biggest ones; their legs can span 15 cm
Top speed
about 2.7 km/h (1.7 mph)
On foot, estimate
Can it hurt you?
Dangerous: look, do not touch
What does it eat?
It hunts crickets, katydids and mantises. Big ones can even catch tree frogs, lizards and bats.
For real!Photo of Brazilian wandering spider
Picture by Gionorossi. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Brazilian wandering spider about 5 cm long (2 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)A banana about 18 cm (7.1 in)
as long as 8 grains of rice in a rowas long as 1.5 toy building bricks in a rowcould run across a dinner table in 1.3 seconds

How big is Brazilian wandering spider compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It hides under logs and in cracks during the day and comes out at night.

2

Raising its front legs high is its way of saying: stay back.

3

Sometimes it hides in bunches of bananas, so people moving bananas need to be careful.

4

A mother can lay about 1,000 eggs and keeps them safe in a silk bag.

5

To win a female, the male does a little dance for her.

you asked

Most asked questions about Brazilian wandering spider

?Does the Brazilian wandering spider make a web?

No. It walks around at night and ambushes its prey instead.

?How big is a Brazilian wandering spider?

Its body can be about 5 centimetres long, and its legs can span about 15 centimetres.

For bug experts

Scientific name
Phoneutria nigriventer
Group
Spiders
Family
Ctenidae
Classification
Arachnida > Araneae > Ctenidae
Lives on
South America

Where the facts come from

  1. Phoneutria nigriventer (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 Gionorossi. CC BY-SA 4.0, 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 hello@bugwiki.app and we will fix it.

More from the same group: Spiders

Also at home here: Rainforests and jungles