Black-footed yellow sac spider
The black-footed yellow sac spider is a small, pale yellow spider with dark brown feet and jaws. It does not spin a web to catch food. Instead, it goes hunting at night and sleeps all day in a little silk bag.
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Fun facts
It builds itself a brand new silk sleeping bag every day, in less than 10 minutes.
It has eight eyes, but it hunts in the dark, so it mostly feels its way with little feelers by its mouth.
Its front legs are the longest of its eight legs.
A mother shuts herself inside a silk tube with her eggs and guards her babies for about 17 days.
It can float through the air on a long silk thread carried by the wind.
Most asked questions about Black-footed yellow sac spider
?Why is it in my house?
It usually lives in trees and bushes, but sometimes looks for shelter inside houses.
?How big is a yellow sac spider?
Its body is only about 4 to 9 millimetres long, and with its legs it is up to about 2.5 centimetres across.
For bug experts
- Scientific name
- Cheiracanthium inclusum
- Group
- Spiders
- Family
- Cheiracanthiidae
- Classification
- Arachnida > Araneae > Cheiracanthiidae
- Lives on
- North America, South America, Africa
- Also known as
- American yellow sac spider, Yellow sac spider
Where the facts come from
- Cheiracanthium inclusum (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 Austin Campbell. 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.
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