The cicadas' life cycle is relatively simple though complex in some ways. They emerge in masses, sometimes millions of insects, when the temperature of the ground reaches a specific level at night. Once they have developed into adult cicadas, they stay underground and feed on the sap from nearby plants. They cannot come out until the weather warms up enough to enable mating. They then leave their underground homes to emerge from nearby trees. A straggler cicada is very rare, appearing in any year but usually during the year before the large group emergence. It can also appear in the year immediately following the emergence of the larger ones, but more often, a straggler flies to a tree and lays eggs.
A cicada's life cycle is unusual and complex. After laying eggs on tree branches, nymphs molt five times before emerging as adults. They spend most of their time in these burrows, sucking plant roots for liquids. During their entire life cycle, cicadas mate with the females of the same species. They can be seen in the spring and summer in gardens, parks, and orchards.
A cicada's life cycle is fairly simple, though there are some differences between species. The male lives for 13 to 17 years and produces mating calls. It will mate with several females during this time. The female stage, or nymph, sheds its exoskeleton and feeds on tree roots. Once mature, the nymphs live for two to six weeks, depending on the species.
The cicadas' life cycle, though complicated, can be broken down into four main phases. During the nymph stage, a female cicada will lay her eggs on tree twigs. The eggs will hatch after six weeks and fall to the soil. From there, they will feed on the sap of woody plants, roots, and herbs. Then they will migrate to the surface and emerge at a certain stage of their life.
While cicadas have no hearing organs, they have an important function in hearing. The male nymph has a sensory organ called an auditory organ. This is connected to the tympanum by a tendon. When they sing, they crease the tympanum, which allows them to hear the sound from their surroundings. The sounds they produce are deafening.
The nymphs, which are the earliest stage of the cicadas, spend their entire life cycle above ground. They make noise for the next seven to eight weeks to attract females. They will then burrow to the ground, feed on the roots of grass, and molt to become adult cicadas. These nymphs are capable of mating, in spite of their young age.
Have you ever heard those loud noises from tiny insects? Most people wonder if cicadas are responsible for them. That is a part of their hearing mechanism. This is paradoxical because it is irritating to the human ear. These sounds are worse when they are in groups. At least now you know that it is part of their survival mechanism. Play this interactive online game on the life cycle of this insect to learn the different stages involved from eggs to adults.
In the UK system of education, this is equivalent to science for year 2, year 3, year 4, year 5, year 6, year 7 and year 8.