Fencepost jumping spider
The fencepost jumping spider is a flat, furry, grey-brown spider. Like all jumping spiders, it does not catch food in a web. It sneaks up on insects and pounces on them.

How big is it?
How long is it?
How big is Fencepost jumping spider compared to YOU?
Just maths in your browser. Nothing is saved or sent anywhere.
How fast is it?
Fun facts
It builds a little nest under the bark of dead trees. Up to 100 nests can sit side by side.
When two spiders meet, the weaker one lifts its front legs and slowly backs away to show it gives up.
Scientists found that what happens to a young spider shapes its personality.
Its flat body is perfect for squeezing into cracks under bark.
Most asked questions about Fencepost jumping spider
?How big is the fencepost jumping spider?
Females are about 7,5 to 14 mm long, males about 6 to 8 mm.
?Where can I find a fencepost jumping spider?
On tree bark, wooden fences and walls of buildings, especially on pine and spruce trees.
For bug experts
- Scientific name
- Marpissa muscosa
- Group
- Spiders
- Family
- Salticidae
- Classification
- Arachnida > Araneae > Salticidae
- Lives on
- Europe, Asia, North America
Where the facts come from
- Marpissa muscosa (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
- Picture by Luc Viatour. CC BY-SA 3.0, 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.