when mosquito flies we hear the sound produced by its wings but why it is not so in the case of the moth Share with your friends Share 2 ɪᴍ彡ᴀʏᴜsʜ . answered this Cuz in t case of moth a vibration of less than 10 hertz is produced which we can't hear I am not sure but if u ask me this will be my ans -1 View Full Answer