cricket
蛬 centers on the cricket, a specific insect known for its chirping sound.
蛬 combines 虫 (insect) with 共, which likely contributes the sound. The character was created to represent the cricket.
The top 共 looks like a pair of hands holding something, and the bottom 虫 is an insect. Imagine holding a cricket in your hands, feeling its tiny legs tickle.
For キョウ, picture a cricket in Kyoto (キョウト) chirping loudly: Kyoto -> キョウ, and the cricket is the star of the sound.