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Steatoda
(False Widows)

Picture ID 55917

Picture of Steatoda (False Widows) - Dorsal

Comments & ID Thoughts

Found this in my kitchen. It looks black with a grey or white line down its back. Please help me identify this. Hoping it’s not poisonous. Thank you.

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BugmanDan

Hi, looks to be a false black widow, Steatoda grossa. Not dangerous at all.
If she is out of the way, you could just leave her to eat pest bugs.
Had one by my front door in Mountain home.
She will live her life in her web unless driven or starved out.
https://bugguide.net/node/view/6932

BugmanDan

Maybe consider Henrietta,,this is a female.
Mine I named Cassi (Cassiopeia) the seated queen.

BugmanDan

In the spider kindom,often the males are smaller. Leggier perhaps.

ItsyBitsy

Looks suspiciously like Steatods castanea, I haven’t heard of that species in Idaho before but it’s range is expanding. There are also other less well documented Steatoda it may be. This doesn’t look like S. grossa.

Additional Pictures

Picture of Steatoda spp. (False Widows) - Female - Gravid Enlarge Picture
Picture of Steatoda spp. (False Widows) Enlarge Picture
Picture of Steatoda spp. (False Widows) Enlarge Picture
Picture of Steatoda spp. (False Widows) Enlarge Picture