Dragonfly / Hornet / ?
I haven’t seen this type of flying insect in our area (Southern Ontario) until it tried to dive bomb my head while I was sitting on our deck. It eventually landed on our shed and I was able to take a couple of shots. It’s body is about 2" long. Including the tail it is about 5-6" long! Thanks for any info you can provide. Great site!
This is a Giant Ichneumon, Megarhyssa macrurus, and though it is related to wasps, it does not sting. That is an ovipositor for laying eggs inside wood where the larva parasitize boring insects.