SOUNDS OF BUSH CRICKET (1:35 Minute)
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Bush Crickets produce sound by rubbing their wings together. At the base of the forewing, there is a thick, ridged vein that acts as a File. The upper surface of the forewing is hardened, like a scraper. It lifts its wings and pulls the file of one wing across the scraper of the other. The thin, papery portions of the wings vibrate, amplifying the sound.
This method of producing sound is called 'Stridulation', which comes from Latin, meaning "to make a harsh sound".