2021 marks the return of Brood X, the most concentrated seventeen-year periodical cicada found throughout the eastern United States. In celebration of their emergence, here is a peek into their life cycle with reference to the timeline of their occurrence. Periodical cicadas have long been a fascination of scientists and naturalists and can be found throughout the Lloyd Library collection. Some notable representations are featured here. Explore full-text digitized copies of these works with the provided links. Click here to view Cicadas.