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Large spider - Pisaurina mira

Large spider - Pisaurina mira
Third Fork Trail, Durham, Durham County, North Carolina, USA
May 5, 2012
Size: 2 inches
One of the largest spiders I've seen on the ground.

P. mira
Moved from ID Request.

They do get pretty large, but I don't believe this species gets up to 2 inches. I think they are under an inch. Levi lists the species as 16 mm. Legs aren't included in spider measurements.

But I was not wrong about the size of this spider. I was including the legs, so perhaps that is causing confusion. It was one of the largest spiders I have ever seen, and has nothing in common with any Pisaurina mira spider I have ever seen (and they are many).

I think I need to turn to another source of information.

Yes, as I mentioned before
legs are not included when measuring spiders, so your spider is likely around the 15 mm size or about .6 inches as mentioned by Levi. Of course spiders that have long legs do seem larger than ones that have shorter legs.... but in spiders the legs just don't count toward the recorded length.

There are six known variations in the pattern of P. mira. You can see some of these on the info page for that species here.

If you still don't believe the ID and would like to see the PDF document written by an arachnologist that described the species, you can see that here. The drawings are black & white... but it will give you the general idea of how much the pattern can vary within this species. Your spider matches pattern #3 exactly.

I disagree
I wasn't wrong about the spider size. But I'm inclined to say it's a running crab spider. The size and shape are right, but I can't get a species match on this site.

not a running crab spider
I can assure you it's not a running crab spider. The running crab spiders are all quite small, most in the 10 mm range.

I am sure your image is of a Pisaurina. I'm 99% sure it's P. mira. Did you see my comment about the legs not being included in spider measurements? That often confuses people with spider sizes.

The stance makes me think of Pisaurina

But wait to see what the spider experts have to say.

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