The song of summer evenings is has risen to a blaring ruckus: It is the call of the cicadas.
Familiar as that noise is, there’s some serious confusion about the bugs that create it. Here in the Midwest, we refer to them colloquially and erroneously as locusts; really, locusts have nothing to do with cicadas and are much more like grasshoppers behaving with mob mentality.
And adding to the locust-cicada confusion is the common knowledge that cicadas are only supposed to emerge every 17 years, lying in wait underground. But those periodical cicadas aren’t the only cicada there is—there are all kinds of cicadas out there, and most of them are annual visitors.
In Missouri, the Dog Day Cicada, Swamp Cicada, and Scissor-Grinder are a few that make their presence loud and clear from the moment the heat begins to creep into the day. Their noise grows louder all afternoon and crests, finally, in a wild and desperate whir just before nightfall.
Nothing evokes late summer like that loud and longing whine. The cicadas sing their loudest in this month of August, just before the intense certainty of summer heat, summer green, and summer humidity begins to fade. With September’s arrival they will gradually quiet, dropping out of the chorus one by one until the evenings are calm. In the same way that their raucous shriek grows as the light disappears from the sky, their ringing rises to its peak as summer starts to fade. When they leave, they carry the life out of the air with them, having sung the season to sleep with commanding fanfare.