Spider identification

12 Comments
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By an edhat reader

Is anyone able to ID this guy? Size is about 1/2" diameter... Thanks!

Update by edhat subscriber "MiniBeast"

Here is Dr. Oboyski’s reply as Executive Director of Essig Museum of Entomology at UC Berkeley:

"It might be Steatoda nobilis("noble false widow"), but it is much darker than any specimens I have seen. I am always wary of identifying small critters from photos. Some of the most important characters are difficult to see without the specimen under a microscope. Like almost all spiders, Steatoda have venom that helps subdue their prey. This venom is particularly effective against insects and other small arthropods, but not humans or other mammals. So they are not at all dangerous to us (unless you have an unusual allergy). The exception in California is the black widow, which has a venom that can kill small rodents and might make a person feel a bit ill (flu-like symptoms). By the way, there are no brown recluse in California.”

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12 Comments

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a-1574465824 Nov 10, 2019 09:17 AM
Spider identification

I don't see the round glossy abdomen that I associate with widows.

jqb Nov 10, 2019 08:07 AM
Spider identification

It looks to be a wolf spider, but it's really not possible to be sure just from one photo.

a-1574465824 Nov 09, 2019 08:46 PM
Spider identification

@NOV 09, 2019 10:03 AM. One thing this spider is not is a Black widow.

a-1574465824 Nov 09, 2019 08:42 PM
Spider identification

I just sent an email to some Berkeley experts. When reply is received, I will post the i.d. Meanwhile, it doesn't appear to be a False widow or Brown widow. And if this is a mature male, it would have enlarged pedipalps, more likely than not.

LadyLove3816 Nov 09, 2019 08:16 PM
Spider identification

Looks like it could possibly be a false widow

LadyLove3816 Nov 09, 2019 08:21 PM
Spider identification

Correction with link below-*Noble False Widow* ? However I’m not an expert, just my opinion. Good luck.

Lando Nov 09, 2019 03:37 PM
Spider identification

Agree w/ Mtndriver, not a brown widow. His guess looks pretty spot on...

mtndriver Nov 09, 2019 03:07 PM
Spider identification

I don’t think that’s a brown widow. Abdomen not round enough. And the thorax—upper part of the body—is about the same size as the abdomen. In widows os all types, the abdomen is much bigger. Google Tegenaria domestica. That’s what it looks like to me.

a-1574465824 Nov 09, 2019 10:30 AM
Spider identification

If the abdomen is bulbous/rounded top, looks like you’ve photographed a Brown widow. I see them in my garden. Just leave her be. No pokey pokey, no bitey bitey. She will help keep insect population in balance.

Cristinas Nov 09, 2019 10:12 AM
Spider identification

My guess, Brown Widow, agree with 10:03 need to see underside .

a-1574465824 Nov 09, 2019 10:03 AM
Spider identification

Possibly it is a "baby" black widow? Without seeing the red underside it's hard to tell though.

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