Does any one know which species of insect is this one?
That is a male dobsonfly. I know this is a male because it has long mandibles which are used in mating. Female dobsonflies have short mandibles. larval dobsonflies are called hellgramites,and it really hurts a lot when they bite you.Look here https://en.wikipedia.org/wiki/Dobsonfly or here entnemdept.ufl.edu/creatures/misc/eastern_dobsonfly.htm