I originally misidentified this insect as a Thyreodon atricolor, endoparatic ichneumonid wasp. Thanks to one of my readers, who's blog is Don't Bug Me, I now know that this is incorrect. This insect only has a single pair of wings where wasps have two pairs of wings. This is probably actually a type of crane fly but which specific type I am not certain. This is a true Ichneumonid wasp, notice it has 4 wings. I believe it is a form of giant ichneumon. These use their long ovipositor to lay their eggs inside of hortail wasp larvae which bore inside of hardwood trees. I took this pic in St Croix State Park.