Honestly, jsloan is probably right on this one because like I said, I don't have much experience with crab spiders although these little gals sure are neat! As far as a picture comparison, your guess (T. onustus) looks like a possible ID to me as well. I am sure someone with more experience with this species will pop in with an ID, no worries. I'll be sure to post any information I happen to run across that might prove to be helpful with this gals ID. Take care!Keeping in mind that I know virtually nothing about spider identification, the pictures that I've seen in the links above that look most like my specimen are labeled Thomisus onustus. Note the similar angular shape of the abdomen.
Hi JSloan,As far as I know Thomisus onustus is a European species and is not found in the states.
Have you still got the spider in your original photographs? Take a look at its face from the front. Chances are it does not have large "horns" on either side of the face (a characteristic of Thomisus but not Misumenoides.)