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Dissosteira carolina
Pretty little grasshopper, however, this is different looking than a Differential Grasshopper.
I think more likely you have something from Genus Arphia. Did you happen to see the wing color? Here is a link: http://bugguide.net/node/view/7881/bgpag...
Compare your grasshopper to this image of Melanoplus differentialis: http://bugguide.net/node/view/584548