Katydid being parasitized by a Tachnid Fly
Microcentrum retinerve / Orthoptera
This male Katydid has just been doomed to death by this female Tachnid Fly. When the parasitic fly swooped down to lay her egg on the katydid he struggled to avoid her, notice how his abdomen is pulled up toward his thorax. The egg will hatch a small maggot which will bury into the katydid to eat him alive. These flies will parasitize caterpillars too.
Katydids, grasshoppers, and crickets are in the order Orthoptera, which means "straight-wing".