Corey
It is a cool looking insect...nice photo!
It is the nymph stage or young of one of the Acanaloniid planthoppers. In the nymph stage it is hard to tell which one it is as they tend to all look alike. Once you see an adult then we know for sure.
Here are some photos of that family of planthoppers. You can click on the various pages to see the adults as well as the nymphs -http://bugguide.net/node/view/105/bgimage?from=24
Here is a website that compares a few species in the genus Acanalonia...the only genus in this family - http://bugguide.net/node/view/15668
Planthoppers feed on juices from shoots and leaves of plants, mostly trees and shrubs. the nymphs are known by the waxy filaments that stick out the back end. These do not feed enough to be pests.
They do look like wooly aphids, but have that long waxy tail. Good guess on your part!