Black Grass-carrying Wasp on Queen Anne's Lace Flower
Appears to be a black Grass-carrying wasp (Isodontia mexicana). There is a very similar wasp, Isodontia auripes, which has brown legs.
These wasps will line the inside of their nests with grass. You can occassionally see the female flying with grass trailing behind.
This non-agressive wasp that hunts grasshoppers has been moving through North America as it has no natural predators.
Insect photo taken in Chardon, Ohio.