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Steatoda nobilis
(Noble False Widow)

Picture ID 196556

Picture of Steatoda nobilis (Noble False Widow) - Female

Comments & ID Thoughts

I need to know what this spider is because it needs to be out of my house. If it's invasive or poisonous I'll kill it but if it's neither I'll put it outside.

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Nod

It is a Steatoda nobilis..it is harmless. They are a fairy recent import from Europe and are doing really well in California. They have become established there in the last few years.

TangledWeb

She is quite robust. She’ll be ready to lay eggs soon. If they hatch indoors it’s something that works itself out. I have had generations of False Widows ( S. trianulosa ) in my house. They do well in the kitchen. I keep garden flowers in a vase of water. Some climb down the flowers to drink water. Any flying insect that gets into my house is doomed. If the False Widows don’t catch it, the Cellar Spiders do. Baby spiders automatically get far away from each other because their siblings are hungry enough to eat them.

Nod

These spiders can live happily outside. You could relocate it outside if you wish.
https://askentomologists.com/2015/10/11/how-do-i-relocate-insects-and-spiders/

Additional Pictures

Picture of Steatoda nobilis (Noble False Widow) Enlarge Picture
Picture of Steatoda nobilis (Noble False Widow) Enlarge Picture
Picture of Steatoda nobilis (Noble False Widow) Enlarge Picture
Picture of Steatoda nobilis (Noble False Widow) Enlarge Picture