THE VITAL CYCLE OF THE PERIODICAL CICADA.

The cicadas are a super family, the Cicada-Idea, of insects in the Order of True Bugs (Hemipt-Era).
They are placed in the sub-Order Au-Chenor-Rhyncha, the word is from the Greek 'Auxnv' meaning 'neck, throat' and 'puyxoc' meaning 'snout,' which contains most of the familiar members of the Order of Tree Bugs. Along with them are the smaller jumping bugs such as leafhoppers, tree-hoppers, plant-hoppers, and frog-hoppers.
They produce either audible sounds or substrate vibrations as a form of communication. Such calls range from vibrations inaudible to humans, to the calls of many species of cicadas that can be heard for hundreds of meters at least.
Cicadas have prominent eyes set wide apart, short antennae, and membranous front wings. They have an exceptionally loud song, produced not by the act of rubbing together certain body parts, like most insects, a number of species of fish, snakes, and spiders, do. They produce the loud song by vibrating drum-like paired timbal membranes, located on the sides of the abdominal base, rapidly.
The timbals are regions of the external skeleton that support and protect the body that were modified to form a complex membrane with thin, membranous portions and thickened 'ribs.' These membranes vibrate rapidly, and enlarged chambers derived from the tracheae make the cicada's body serve as a resonance chamber, greatly amplifying the sound. They modulate their song by positioning their abdomens toward or away from the substrate.
Most of the cicadas has the ability to avoid observation or detection by other animals. Methods include camouflage, nocturnal behavior, subterranean life style, and mimicry. The ability involves visual, olfactory (disguising its own odor), or auditory concealment.
They typically live in trees, feeding on sap, and laying their eggs in a slit in the bark.
The periodical cicada or the 17 year locust, is native to Canada and the United States. The insect's eyes and wing veins are reddish and its dorsal thorax is black, and distinguished by broad orange stripes on its abdomen. Recurrences of enormous numbers of noisy emergent cicadas appear in these fantastic numbers every 13 or 17 years.
The periodical cicada remains underground during this cycle of time (13 /17 years) as worms feeding themselves by absorbing fluids from trees' roots and shrubs. Then they emerge from the underground in large swarms (great locusts) after they have reached their maturity level during the spring season and only for a few weeks.
During that short period of time they enjoy the sun rays, the clean air, singing in a very loud way, change their skin like chameleons since their nature belong to the cold blooded type they need to maintain their heat in order to be able to reproduce themselves forming from 400 to 600 eggs in the interior of trees'  branches. After that mating period of time they die. Then the eggs mature and the worms fall to the ground finding their way to the underground just right under the trees' roots and the cycle goes all over again every 13 or 17 years.