@megadude
This is the best time of year to see insects
The green one in your photos is a katydid, one of my favourites. There are several types in Ontario, all look completely different. A few I've spotted:
Black legged meadow katydid
Greater angle-wing katydid
Fork tailed bush katydid from a few days ago
I'm surprised you haven't seen many cicadas before. Our trees are full of them, and we find their skins all over and even some dead ones
When they emerge from the ground, they molt and leave these skeletons
This may be two different species, the smaller one could be a swamp cicada and the bigger one is probably the most common type, the dog day cicada
Here's a cicada killer, a giant bee that stings the cicada, carries it down from the tree, lays eggs in the body and buries it. This was in my backyard a few years ago