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Photo#193386
Metallic running crab - Philodromus marxi

Metallic running crab - Philodromus marxi
Harms Woods Forest Preserve, Glenview, Cook County, Illinois, USA
June 18, 2008
Size: ~7mm
Another Philodromus that we saw later in the hike. They are in non-stop motion on the vegetation.

Moved
Moved from Philodromus.

Nice find.
Do you think it's a Philodromus marxi? I'd like to find one of these some day.

 
It certainly looks to us like
those identified in the guide as marxi, but we understand that there are dozens of species in Philodromus, so we don't know if any others look like this. There are several marxi-like images on the genus page and most ask the question, but no one is answering yet. Normally we would move it there and then expect folks to move it out if it is wrong, but Beatriz is pushing for filling the guide the other way - Not putting it in till certainty. We're going to wait to see how the discussion goes on her Forum entry. It's a little confusing for us, because, as amateurs, we never have certainty! That means we could never move an image to a guide page unless a recognized expert comments. We're still thinking about our response to her Forum post.

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