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Sticker of Intertidal jumping spider
Bug card No. 2364 of 4,939

Intertidal jumping spider

Terralonus californicus
Eats: Other bugs and small animalsSpidersPonds, rivers and shores8 legsNot an insect, but a bug cousin

The intertidal jumping spider is a tiny spider that lives on the beach. It is black, grey and tan, just like sand and pebbles, so it is very hard to see. Few spiders in the world make their home on a beach like it does.

Fun fact: spiders are not insects. Insects have six legs, spiders have eight. Everyone calls them bugs anyway!
Lives in
The Pacific coast of North America, from Canada to Mexico, on sandy beaches
Length
3 to 5 mm (0.12 to 0.2 in)
Top speed
about 0.73 km/h (0.45 mph)
On foot, estimate
What does it eat?
It hunts small creatures on the beach, such as flies and beach hoppers that come to seaweed and other things washed up by the waves.
For real!Photo of Intertidal jumping spider
Picture by Marshal Hedin from San Diego. CC BY 2.0, via Wikimedia Commons.

How big is it?

How long is it?

Intertidal jumping spider about 5 mm long (0.2 in)A grain of rice about 6 mm (0.24 in)
small enough to sit on your fingernailcould run across a dinner table in 4.9 secondsmoves 41 times its own body length every second

How big is Intertidal jumping spider compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It is only 3 to 5 millimetres long, about as big as a grain of rice.

2

It lives where the sea goes in and out, between high and low tide.

3

Males have longer front legs than females. They use them to scare off other males and to show off to females.

4

It looks a lot like its close relatives, so experts often tell it apart by where they find it: on the beach.

you asked

Most asked questions about Intertidal jumping spider

?Where does the intertidal jumping spider live?

On sandy beaches along the Pacific coast of North America, from Canada to Mexico.

For bug experts

Scientific name
Terralonus californicus
Group
Spiders
Family
Salticidae
Classification
Arachnida > Araneae > Salticidae
Lives on
North America
Also known as
Beach jumping spider

Where the facts come from

  1. Terralonus californicus (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 Marshal Hedin from San Diego. CC BY 2.0, 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: Ponds, rivers and shores

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