There are 250 species of June bugs, so it isn't possible to list them all, here.
But they all belong to the genus Phyllophagus (fill-OFF-uh-gus), which is the word I think you wanted.
June Bug June Bug
June beetle, May beetle, May bug, green June beetle, figeater.
June Bug
The scientific name for a sow bug is Oniscus asellus.
Phyllophaga
it is called the melittobio digitada
Americanus
Americanus
June bug, Japanese beetele.
Yes, a June bug does have antenna on its body.
The scientific or taxonomic name would be Blissus sp.
The scientific or taxonomic name would be Corythucha sp.