Regenerating Spider

On the fourth of the month, I do a mini-BioBlitz around the farm, and see how many species I can find in an hour or two.  Yesterday, one of the things I noticed was bark peeling off a dead tree, and on closer inspection I saw this spider.

Spider on dead pine tree.

Spider on dead pine tree.

Looking at the pictures on my computer, I noticed that one of its legs was shorter and much smoother than the others.  I looked it up, and apparently spiders can regenerate their legs!

(And that link is to one of my favorite blogs on macro photography — a very informative post on macro equipment is here.)

The regenerated leg.

The regenerated leg.

Comparison of front legs.

Comparison of front legs.

Looking again, I saw that its left front leg seems to have fewer sections than its right front leg, so possibly that has regenerated too.

I should have made sure to get a good picture of its eyes — patterns of eye arrangement help you identify spiders.  I think this is in the wolf spider family but I am not sure.

BugGuide.net has more info on regeneration, and here is another one with a regenerated leg.