The File:
The file is a structure that looks similar to a series of teeth or pegs, which vibrate when they come in contact with the scraper (Gullan and Cranston 2005). The little noise the file makes has to be amplified (Gullan and Cranston 2005). The sound is amplified by using a modified forewing called the tegmina (Gullan and Cranston 2005).
The file is a structure that looks similar to a series of teeth or pegs, which vibrate when they come in contact with the scraper (Gullan and Cranston 2005). The little noise the file makes has to be amplified (Gullan and Cranston 2005). The sound is amplified by using a modified forewing called the tegmina (Gullan and Cranston 2005).