What do you know about Cicadas? Help teach everyone by adding information on this page.

I know that cicadas don't bite or anything they are just scary looking.
Cicadas come out either every 13 or 17 years. The 13 years usually come out in southern lllinois and the 17 years in Northern Illinois. They will not cause damage to plants, but are dangerous to small trees because that is where they lay their eggs.-ottergirl

(AU, 115KB) This is the sound of cicadas. from zozo1