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 Why in News

The periodical mass emergence of cicadas in eastern North American forests can “rewire” forest food webs .


  • The cicada is a large flying insect that is related to the leafhopper and planthopper. 

  • There are over 3,000 known species of cicadas.

  • Cicada found all over the world except for Antarctica, Greenland, and Iceland.

  • Cicadas are best known for their loud mating calls. The males produce these calls by vibrating a pair of membranes on their abdomen, called tymbals. 

  • The females are attracted to the calls and will choose a mate based on the volume and quality of the call.

  • Cicadas are an important part of the ecosystem. They help to aerate the soil and they provide food for other animals, such as birds, bats, and lizards.

What is Brood X cicada emergence

  • Brood X cicada emergence is a natural phenomenon that occurs every 17 years in the eastern United States. 

  • During this time, billions of cicadas emerge from the ground to mate and lay eggs. 

  • The emergence is a spectacular sight and sound, as the cicadas fill the air with their loud mating calls. 

  • The cicadas that emerge during Brood X are all part of the same generation

  • They were born 17 years ago and have been living underground ever since. During this time, they have been feeding on the roots of trees.

  • The entire process of emergence, mating, and egg-laying takes about six weeks. After that, the adult cicadas will die.

  • The next Brood X emergence is expected to occur in 2038.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Cicada UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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