These are among the more bizarre insects we get in the north woods. Very easy to mistake for a twig or stick until they move. Although they are said to be common, I have seen only a few, but have probably passed by others without knowing. Along with this one I saw a mating pair nearby. According to Bug Guide, the males are approx. 3 inches in length, the females nearly 4 inches. The size does not include their long, long legs. Bug guide says: "emales drop eggs singly on to the forest floor. Eggs overwinter in leaf litter hatch in the spring. Nymphs become adults during the summer and fall."