This May millions of cicadas will emerge in the eastern seaboard and west through Indiana and south to Tennessee. Cicadas are harmless. They do not bite or sting, or attack people. If you hold them for a long time they might try to take a drink of you with their straw like mouth parts. They can cause physical damage to small
trees or shrubs if too many feed from the
plant or lay eggs in the twigs but I would not worry about it. Also they are loud! A benefit of them is they help aerate the soil and provide food for wildlife. Every year some cicadas do emerge, but this group, brood X, which comes every 17 years, is the largest!! So be ready!! I know I will be out watching!!