The acoustic behaviour of the bushcricket Tettigonia cantans I. Behavioural responses to sound and vibration.

The responses of Tettigonia cantans to species-specific song and substrate conducted vibration have been tested under three experimental regimes. When directional cues are adequate the sound source can be located by audition alone; where such cues fail to provide sufficient information then vibration signals become of value. In two-choice experiments vibrating substrates are preferred by both males and females moving towards the sound source. In multiple-choice experiments Tettigoniids may either detect and follow vibration gradients or the direction of the bending waves coming from the vibration source to orientate towards a conspecific.