Cicada Noise Mechanism, Diagram is a photograph by Claus Lunau which was uploaded on December 18th, 2014.
Cicada Noise Mechanism, Diagram
Cicada noise mechanism, diagram. Cicadas are insects forming the family Cicadidae. Male cicadas produce a rhythmic mating calls, a loud clicking... more
by Claus Lunau
Title
Cicada Noise Mechanism, Diagram
Artist
Claus Lunau
Medium
Photograph
Description
Cicada noise mechanism, diagram. Cicadas are insects forming the family Cicadidae. Male cicadas produce a rhythmic mating calls, a loud clicking sound from stridulatory organs on their abdomen. These are a set of oscillating membranes in an abdominal cavity near the wings (lower left). The semi-rigid, arched membrane, or tymbal, is pulled out of shape by specialised muscles (red, yellow arrow at right) to produce a loud 'click' (yellow sound waves at lower right). The membrane flicks back and forth, producing 120-600 clicks per second. This winged stage lives for around a month. Most of the life cycle is the nymph, feeding underground on the sap of tree roots.
Uploaded
December 18th, 2014
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