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Sticker of Pink crab spider
Bug card No. 1061 of 1,500

Pink crab spider

Thomisus onustus
Eats: Other bugs and small animalsSpidersGardens and meadows8 legsNot an insect, but a bug cousin

The pink crab spider is a master of hide and seek. The female can change her colour to white, yellow or pink to match the flower she sits in. Then she waits very still in the middle of the flower for an insect to come close.

Fun fact: spiders are not insects. Insects have six legs, spiders have eight. Everyone calls them bugs anyway!
Lives in
Europe, North Africa and across Asia to Japan, on flowers in warm places
Length
0.2 to 1.1 cm (0.08 to 0.43 in)
Top speed
about 0.38 km/h (0.24 mph)
On foot, estimate
What does it eat?
It catches bees, butterflies, hoverflies and other insects that visit flowers, often ones much bigger than itself. When bugs are hard to find, it can also eat pollen and nectar.
For real!Photo of Pink crab spider
Picture by Charles J. Sharp. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Pink crab spider about 1.1 cm long (0.43 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
as long as 2 grains of rice in a rowcould run across a dinner table in 9.5 seconds

How big is Pink crab spider compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It does not spin a web to catch food. It grabs insects with its long front legs.

2

The female is much bigger than the male. She is 7 to 11 millimetres long, he is only 2 to 4.

3

The male is plain green or brown and does not change colour.

4

Bees often stay away from flowers where these spiders hide.

5

Spider babies can eat pollen to stay alive, but they need insects too in order to grow.

you asked

Most asked questions about Pink crab spider

?Can the pink crab spider change colour?

Yes, the female can turn white, yellow or pink to match her flower.

?Why is it called a crab spider?

Crab spiders hold their front legs out to the side like a crab's claws.

For bug experts

Scientific name
Thomisus onustus
Group
Spiders
Family
Thomisidae
Classification
Arachnida > Araneae > Thomisidae
Lives on
Europe, Africa, Asia

Where the facts come from

  1. Thomisus onustus (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 Charles J. Sharp. 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 [email protected] and we will fix it.

More from the same group: Spiders

Also at home here: Gardens and meadows