The examples of responses of the noctuid moths Blepharita (Crino) satura to the short (2.5 ms) pulses. Continuous oscillograms represents deviations of the moth in the horizontal plane. Superimposed vertical lines correspond to the moments of emission of ultrasonic signals by the moth. Abscissa represents time scale, "0" corresponds to the moment of the first acoustic contact of the moth with the stimulator (i.e. the first pair "natural click - puls"). Green bars above abscissa indicate the intervals of readiness of the apparatus to stimulation.