There are a series of visitors coming to the northeast. Hundreds of millions to be exact. One swarm of visitors comes around every year around the start of summer. The second set of visitors have not been seen for the last 17 years. Both types of visitors will emerge sometime between mid-May and the end of June with a lifespan of four to six weeks. These visitors are cicadas, also known as locusts. There are 23 different broods in the United States. Cicadas spend years underg