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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lunau, Claus |
Bildgröße: | 5145 px × 3402 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |