This process is called sublimation. The opposite (deposition) is where a gas turns directly into a solid. Sublimation occurs if the pressure and temperature are right for the specific substance, so that the solid phase in a phase diagram borders the gas phase.
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.
When they are mature, they climb out of the ground and complete one final molt. They emerge as an adult cicada with wings, and fly away to find a mate. Once they become an adult they stop growing and do not molt again. Some of the species that take 13 or 17 years all come out of the ground at one time.There can be millions of adult cicadas flying around at that time.icadas need trees or large woody bushes to feed on when they are nymphs, and soil that is not too wet. They are found in habitats that have warm summers (at least) and these kinds of plants and soil. 1  These animals are found in the following types of habitat. 2  temperate. 3  tropical. 4  terrestrial. 5  Terrestrial Biomes. 6  desert or dune.