The reason I ask is that I just returned from a herpin vacation in North Carolina where I observed and collected a few GTF. I collected one in the southeastern part of the state which is quite large and has no white stripes at all [I know they are variable and the white stripe doesn't mean much].
Later in my trip I spent one night on Ocracoke on the Outer Banks. Ocracoke is a relatively small island and rather arid and sandy. There are small freshwater marshes however and the frog chorouses where deafening [they actually kept us awake at the campground!]. After dark we made a couple of road cruising passes up and down the only main road on the island. We saw several green treefrogs and I collected three. The interesting thing was, the GTF there were less than half the size of the one from the southern mainland. I considered the possibility that they were immature but we never saw any large ones. Also the small ones all seemed to be heading to or from the breeding chorouses, implying adult behavoir. In addition, all the GTF from the island that we observed had very distinct wide white stripes. Side by side, the frogs from the two seperate areas look very different. Maybe they are subspecies?
Side note: Also seen while road cruising on Ocracoke were large white land crabs, appropreately named "ghost" crabs, which patrolled the pavement hunting for frogs that were killed by cars. Very cool looking animals - they glowed white in the headlites and seemed to hold their ground with claws upraised against oncoming cars. Of course they usually didn't win those battles. :^[
