Maurice they are both cicadas-Cicadas are often colloquially called locusts,[1] although they are unrelated to true locusts, which are a kind of grasshopper. Cicadas are related to leafhoppers and spittlebugs.
Most of the North American species are in the genus Tibicen: the annual or jar fly or dog-day cicadas (so named because they emerge in late July and August). [1] The best-known North American genus is Magicicada, however. These periodical cicadas have an extremely long life cycle of 13 to 17 years and emerge in large numbers.[1] Another American species is the Apache cicada, Diceroprocta apache.
After mating, the female cuts slits into the bark of a twig, and into these she deposits her eggs. She may do so repeatedly, until she has laid several hundred eggs. When the eggs hatch, the newly hatched nymphs drop to the ground, where they burrow. Most cicadas go through a life cycle that lasts from two to five years. Some species have much longer life cycles, such as the North American genus, Magicicada, which has a number of distinct "broods" that go through either a 17-year or, in some parts of the world , a 13-year life cycle. These long life cycles perhaps developed as a response to predators, such as the cicada killer wasp and praying mantis.[14][15][16] A predator with a shorter life cycle of at least two years could not reliably prey upon the cicadas.[17]