Abstract
Our study has the idea of a technological application by elucidating the mechanism of a Homoeogryllus sounds. It has been understood that a homoeogryllus is generated of the stridulatory sound of the wings so far. The sound organ which is called the files and the plectrum is had, a homoeogryllus stridulated by a right and left wing, and sounds. Only in the attempt of biology or an simply acoustics approaches as for this research theme, a technological approach is not seen. Then, we elucidate the mechanism of homoeogryllus's sounds by the vibrating techniques of the high-speed camera and the experiment modal analysis, etc.