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Photo#949298
Crab Spider - Tmarus minutus - male

Crab Spider - Tmarus minutus - Male
Allison Park, Allegheny County, Pennsylvania, USA
June 14, 2014
I posted a female previously. The palp seems to match Tmarus angulatus in Paquin and Duperre 2003 and it does look somewhat similar.

Images of this individual: tag all
Crab Spider - Tmarus minutus - male Crab Spider - Tmarus minutus - male Crab Spider - Tmarus minutus - male Crab Spider - Tmarus minutus - male Crab Spider - Tmarus minutus - male

Moved
Moved from Tmarus. While the palp pictures here are not conclusive, this specimen keys out pretty cleanly to T. minutus in Gertsch, 1939 (1). It has no pairs of ventral spines on the tibiae which limits it to T. minutus or T. unicus. The clypeus is sloping (not horizontal) and metatarsi I do not have more than two ventral spines which makes this T. minutus.

A nice addition to the guide. Thanks John!

 
Thanks Chad
That was quick!

 
If I have the resources
readily available on my computer, I can be a bit faster. My books are in the lab and not at my desk.

Moved
Moved from Spiders.

If the palp is a good match
and you found a female I think you're good to move it. Nice one!

 
If you find the time
could you look at this, it's in the paper linked to on the info page for Tmarus. I think this has to be correct, it matches the diagram. It was also too small to be T. angulatus and the habitus seems more consistent with T. minutus. This is a new species so it would need a page. Thanks.

 
Tmarus minutus
is a better match.

 
I agree.
:)

 
The only reason I'm hesitant is
this one and the female look quite different from other spiders I've posted that were IDed as Tmarus angulatus. Those were also more consistent with the illustration in Bradley's Common Spiders of North America. I didn't check to see if the other one was adult so I guess it could have been an immature male but it looked exactly like this one and I think it was around the same size. I'll move it to genus for now.