The male calling song consists of single, short syllables presented at intervals of several seconds. The acoustical response behaviour of the female was studied intensively by Hartley and Robinson (1976), Robinson (1980), Robinson et al. (1986) and Zimmermann et al. (1989). Robinson et al. (1986) gave detailed information about the latency times. Here we add data on the temperature dependency of this behaviour (Fig. 1; f(x)=-0.7299x+49.53; r2=0.6336) and demonstrate that the female reaction can be elicited by crude, click-like models of the male song. Females responded very reliably to fingernail snips (Fig. 2A) – acoustically an impulse of about 1 ms or less in duration with most energy in the ultrasonic range. This behaviour is well known in the laboratories working with this species. Rectan- gularly-modulated pulses of white noise with a duration of 15 ms were responded to with about the same latency, measured from the beginning of the pulse (Fig. 2B). [1]
