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Caption: Cicada (Gaeana festiva) specimen. Cicadas have two pairs of large, membranous wings. The males are best known for their rhythmic mating calls, which fill the air in warm countries. The sound is produced by an oscillating membrane in an abdominal cavity. A semi-rigid, arched membrane (tymbal) is pulled out of shape by specialised muscles to produce a loud "click". This method of producing sound is known as stridulation. The membrane flicks back and forth, producing 120-600 clicks per second. Cicadas spend all but a month of their lives underground as nymphs, some spending around 17 years in this stage. This specimen is from Malaysia.

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Keywords: alone, animal, asia, asian, biological, biology, cicada, fauna, gaeana festiva, homoptera, insect, insecta, invertebrate, invertebrates, malaysia, malaysian, nature, one, single, solitary, wildlife, wildlife and environment, zoological, zoology

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