Mimela junii is a species of beetle belonging to the family Scarabaeidae. It is commonly found in North America, particularly in the eastern and central regions. This insect has a distinctive metallic green coloration on its body, with a slightly elongated shape and a size ranging from 10 to 15 millimeters. Mimela junii is known to feed on various plant materials and can be found in gardens, meadows, and forested areas.