Found this chap by my front door this morning.
The Northern Walkingstick (Diapheromera femorata) - (we call them Stick Insects back home).
A pretty fantastic introduction to handling insects, these guys are harmless, big and slow. There's nothing threatening about them.
Unless you're a leaf.
They are 'leaf skeletonisers', which means that they eat the fleshy parts of the leaves between the veins. Their most active feeding time is between 9PM and 3AM.
And that's about it. The males seem to have the appearance of a younger twig, with a little shine to them. The females appear to have a more mottled, bark-like pattern.