What's That Bug? does not endorse extermination

Trapdoor Spider – CA
Location: Berkeley, CA
November 17, 2010 3:20 am
I saw this spider outside of a well maintained building near a nature reserve in Berkeley, CA. I took the photos 3 nights ago, in mid November; weather has been warm, barely any rain, and with some humidity. It looks to me like a trapdoor spider, but it doesn’t look like ”the” California Trapdoor spider. You’ve gotta tell me, what’s this bug?
Signature: Jim

Trapdoor Spider

Hi Jim,
You are correct that this is a Trapdoor Spider and you are also correct that it is not the California Trapdoor Spider,
Bothriocyrtum californicum.  We believe it is probably a Tube Trapdoor Spider in the genus Calisoga based on this image posted to BugGuide.

Trapdoor Spider

What's That Bug? does not endorse extermination
Location: California

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