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Sticker of Arrow-shaped orbweaver
Bug card No. 0153 of 4,939

Arrow-shaped orbweaver

Micrathena sagittata
Eats: Other bugs and small animalsSpidersForests and woods8 legsNot an insect, but a bug cousin

The arrow-shaped orbweaver is a little spider whose body is shaped like the tip of an arrow. Its back is mostly yellow with black dents. Two big pointy bumps at the back end make the corners of the arrow.

Fun fact: spiders are not insects. Insects have six legs, spiders have eight. Everyone calls them bugs anyway!
Lives in
Eastern United States and Central America
Length
5 to 9 mm (0.2 to 0.35 in)
Top speed
about 1.1 km/h (0.68 mph)
On foot, estimate
What does it eat?
Like other orb-weaver spiders, it catches small insects in its round web.
For real!Photo of Arrow-shaped orbweaver
Picture by Diego Huet. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Arrow-shaped orbweaver about 9 mm long (0.35 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
small enough to sit on your fingernailas long as 1.5 grains of rice in a rowcould run across a dinner table in 3.3 secondsmoves 34 times its own body length every second

How big is Arrow-shaped orbweaver compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It has three pairs of bumps on its body, tipped with black and red.

2

The male is smaller than the female, has no spines and is hardly ever seen.

3

Its scientific name sagittata means shaped like an arrow.

you asked

Most asked questions about Arrow-shaped orbweaver

?How big is the arrow-shaped orbweaver?

The female is up to 9 millimetres long without her legs. The male is only about 5 millimetres.

?Why is it called arrow-shaped?

Its yellow body is a triangle with two pointy back corners, just like an arrowhead.

For bug experts

Scientific name
Micrathena sagittata
Group
Spiders
Family
Araneidae
Classification
Arachnida > Araneae > Araneidae
Lives on
North America
Also known as
Arrow-shaped micrathena

Where the facts come from

  1. Micrathena sagittata (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 Diego Huet. 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: Forests and woods

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