CLOSED: Please help identifying this spider :)

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dmtr Sunnyvale, CA Feb 05, 2011

Found at Truckee, CA

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Post #8356599
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suunto Sinks Grove, WV Feb 06, 2011

This appears to be Metaltella simoni, an introduced species in the family Amphinectidae - see http://tinyurl.com/475j9l7 for an image, and http://tinyurl.com/4uev43z for more detailed information. These spiders resemble hacklemesh spiders (family Amaurobiidae), and once were thought to belong to that family.

Post #8356667
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BadStone Redmond, WA Feb 06, 2011

M. simoni is a strong possibility. But, given the region, I would think that one of the northern varieties of Callobius severus is more likely. These species can look almost identical.

Post #8357472
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suunto Sinks Grove, WV Feb 06, 2011

I agree that Callobius severus also could be a possibility, but something about this specimen just didn't 'seem right' to me. Unfortunately, the only sure way to tell them apart is through microscopic examination - see http://tinyurl.com/4fwfz2z

Post #8357813
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