noun
or june bug
Usage: often capitalized J
: any of numerous rather large leaf-eating scarabaeoid beetles that fly chiefly in late spring and have as larvae white grubs that live in soil and feed chiefly on the roots of grasses and other plants: as
a. : any of various large brown beetles (genus Phyllophaga ) of eastern No. America
b. : green june beetle
c. : any of several European beetles (genus Phyllopertha ) that are similar in appearance and habits to members of Phyllophaga
d. : any of several white-striped beetles (genus Polyphylla ) of western No. America