"They're loud, noisy when they fly, and kind of sound like bumblebees," said Jeff Hahn, University of Minnesota Extension Entomologist. "They're a beetle, about an inch long, kind of reddish brown."
The bugs are members of the phyllophaga family. The species of many Minnesotan June bugs is rugosa. Even though many people are afraid of June bugs, they are harmless, according to Hahn.
"They're attracted to lights. So that's where the banging and head knocking and such goes on. You would not be unaware that they were around," said Hahn.
"Their buzz is worse than their bite," he said