Sounds like a Japanese beetle. Fun to hit out of the air with a tennis racket!
The beetle grubs spend a long time underground eating your grass roots, so they are a pest insect.
It might also be a large water beetle, which are not harmful but will bite!
Hope this helps!
The green carrion beetle is a flying insect with a green body, red tail, and yellow underbelly. The green carrion beetle earns its name by eating decayed flesh.
Sepal
katydid is large green insect that resembles a grasshopper.
A lime green insect that eats the leaves in your garden could be a tarnished plant bug. When these bugs feed on the leaves they end up killing the leaf tissue.
The term 'matis' is defined as any various insect from the Mantidae family. They are usually green or pale green with long bodies and large eyes.They are a primary tropical insect.
Try here: http://www.whatsthatbug.com/
The can either jump at a flying insect, open their mouths and swallow it whole, or they can walk up to an insect and sort of push it into its mouth. They do not use their tongues to catch the frogs.
These small green insects flying about the grass are a type of gnat. These are found in grassy areas throughout the country.
an alligator or crocodile.
Cereal leaf beetles have green bodies and a reddish-orange head. They are crop pests that are native to Asia and Europe, but can also be found in North America.
The State Insect is the Green Darner Dragonfly.
The lime green insect is likely a katydid or a green lacewing. Both have bright green coloring that helps them blend into foliage.