Figure 3.

Experiment 3(ii,iii)—Response of rival males to the sound of leg vibration. (a) Distribution of the response timing of rival males relative to the initiation of leg vibration. (b) Proportion of rivals responding to leg vibration at each distance. Responses of rival males consisted of the following: turning their body to the direction of leg vibration, approaching females, attempting copulation and copulation. BaVi044 was used for both sexes. (c) Oscillogram of sounds associated with a series of wing vibrations and leg vibrations. On average, the amplitude of leg vibration was 9.31 times larger than that of wing vibration (n = 8).