To Whom it May Concern,
I killed two of these monsters this weekend. I have never seen a totally black, wasp like creature before. It dive bombed me and took an inordinate amount of wasp spray to kill. Can you please tell me what this is? I live in mid Michigan.
You killed Sphex pennsylvanica, the Great Black Wasp. They are hunters of katydids, and they nest singly in burrows in the soil, not in mud nests. They are very non-aggressive.