Noun
any of various large usually brown North American leaf-eating beetles common in late spring; the larvae feed on roots of grasses etc.
Source: WordNetIt is better to be a young June Bug than an old Bird of Paradise. Mark Twain
There's a type of bug that latches on, lays an egg where the June bug can't reach it, and then the egg hatches and eats the host from the inside out. Source: Internet