Cicadas are common, though seldom observed, summer insects; chances are, you have probably heard them singing on hot summer days. Most species are rather large (2.2 - 5.5 cm), and when seen for the first time, most people are amazed that such a creature exists.

Cicadas spend most of their life in the immature stage in the soil, feeding on plant sap; emergence from the soil usually occurs in very high numbers, and because so many emerge at once, many escape from predators, which include birds, squirrels, and other small animals.

In many parts of the world, cicadas are prized food for humans.