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Unknown Spider in Garage - Callobius

Unknown Spider in Garage - Callobius
Near Seattle, Washington, USA
July 5, 2004
I found this guy on the wall inside my garage, out in the open without any web in sight. He's a little over an inch in diameter, including legs. The camera flash really brought out the reddish color in his body and legs; in lower light levels, he looked darker. Any help in identification and comments would be appreciated -- thank you!

Moved from Amaurobius ferox.

Just Curious
Is this the type of spider you think it is? Callobius severus. Because it certainly looks a lot like your spider only its female? So, i was just curious what you thought. Heres a website with pictures of it.

Ellen Walden

Sheesh! Just when we had the
Sheesh! Just when we had the mystery "solved," you throw this monkey wrench into it! :)

You're right, Ellen, those photos look an awful lot like "my" spider -- more so than the other photos I had seen. I think you're right! Good call.


I found a couple of these too...
I have found these in my bathroom sink both times. One was living in the overflow-hole, the other just hanging out in the middle of the basin. A little startling first thing in the morning! We also live in the Seattle area (40 min southeast).

Thank you!
Thanks for all of the help. Based on what you told me, and some web-searching, I'm guessing that it's Amaurobius ferox. Some photos of this spider:

And lastly, I found it listed on the "Checklist of the Spiders of Washington" (state):

This is my first attempt to identify a spider, and first serious attempt to identify any kind of "bug." It's been interesting and fun!!

Any comments/confirmation/denial would be welcome.

No common name for this critter, but quite sure it is in the family Amaurobiidae. I grew up in Portland, Oregon and these spiders were common there, residing in virtually any crevice and spinning a haphazard, loose, sheet-like web, spreading out from a tunnel-like retreat where the spider lives. The silk is not sticky, but "fluffy," and charged with static electricity that helps to entangle various insects. I hope "Atomic Spider" can chime in with more info:-)

trapdoor spider but not likely since they dont climb walls and since the jaws appear to be below the face not extending outward from the face ( suborder Orthognatha ) Whatever it is, it's definitely wounded...if not dead. Another more likely possibility; a large Gnaphosid. ( Gnaphosa muscorum )

It lives!
Thanks for the comment, Tom. Trust me, this guy is alive and well . . . which is why my wife is entering the house through the front door rather than the garage! :)

I'm hoping to identify it so I can prove to her that it's harmless and can continue living . . . .

It may be alive, but,
it's not well. It's definitely exuding body fluid. The left first leg is retracted probably because of injury to the coxa / trochanter. I can see a drop of fluid there. and more by the jaw/pedipalp.

It's harmless
I have handled large Gnaphosids ( bare-handed ) They are nocturnal hunters.

Thanks, Tom
Thanks for your time and expertise. In case you're interested, here's a link to another picture that shows his "face" a little better:

Just tease, NOT exper-tease.

excellent image
close enough to count the claws ( two ) This he is likely a she. And by golly, it is an Amaurobid! The eye arrangement confirms. I have handled this spider bare-handed as well. A large female as I recall from a large sheet web amid rotting logs. But that was many years ago. In fact it, it looked just like this one. Perhaps this species is coast to coast in temperate America. Thanks Eric for the correction.

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