Have you ever seen a Junebug, or green June beetle (Cotinis nitida)? These one inch long metallic green bugs are hard to miss! Junebugs mature in June and July and are attracted to overripe fruit. They do not bite people.
I have only ever seen one Junebug at a time, but I have heard others say that their yard is swarming with them.
Let me know if you see one!