It has been more than a decade since Middle Tennessee has dealt with swarms of cicadas.
The last time the 13-year periodical cicada emerged from the ground was in May of 1998.
Come May of this year, most of Middle Tennessee will again see the cicadas, Brood XIX.
Various populations are called broods and scientists use Roman numerals to designate which brood they are referring to.
The cicadas will start appearing in early May and live for about five to six weeks.
Cicadas are completely harmless but they are very loud and the noise could affect outdoor events in May like picnics or weddings.
The female cicadas can also cause damage to young trees when laying eggs.
Females prefer branches about the size of a pencil.
They cut into the underside of the branch and lay their eggs.