Hey, East Coasters: Before you start freaking out over murder hornets, don’t forget that the cicadas are coming! USA Today reports that the insects, which emerge from the ground every 17 years to mate, are expected to come out of their subterranean hiding spots this month as the weather warms in states like North Carolina, Virginia and West Virginia. Although the loud, rattling sounds they make sound like something from a horror movie, cicadas are actually harmless and that sound is what the male cicadas make to attract females. Cicadas also tend to come out only at night, much like your most terrifying monsters, but that’s just so they don’t get picked off by birds. This year’s cicadas are expected to hang around for about four weeks.