|Green June Beetle - Continis nitida|
The GJB larvae, like many scarabs, lives in the soil and feeds on the roots of plants, particularly grasses. At that time, I wasn't sure what they were, and a quick search of Bugguide gave me the answer.
|Scolia dubia- Wikimedia|
While most of the wasps are observed nectaring on flowers, I have observed these wasps (presumably females) flying low over the yard, landing, and disappearing into the ground. Editors note: I would guess that they are leaving their pickles and ice cream nectar to lay a few eggs.