Bush Katydid Nymph

Great looking bug Matthew.

Tettigoniidae, Phaneropterinae, Scudderia sp. http://www.projectnoah.org/spottings/24830049

A planthopper is any insect in the infraorder Fulgoromorpha within the Hemiptera. The name comes from their remarkable resemblance to leaves and other plants of their environment and from the fact that they often "hop" for quick transportation in a similar way to that of grasshoppers. However, planthoppers generally walk very slowly so as not to attract attention. https://en.wikipedia.org/wiki/Planthopper

You might check Bugguide to ID your nymph. Here is a sample page: http://bugguide.net/node/view/122984/bgpage

Katydid or bush cricket nymph. Whenever the antennae are longer than the body it puts it in the Tettigoniidae family.