FIGURE 14. Heremusina udeoecetes n in Two new genera and five new species of Mugadina - like small grass cicadas (Hemiptera: Cicadidae: Cicadettini) from Central and Eastern Australia: comparative morphology, songs, behaviour and distributions

FIGURE 14. Heremusina udeoecetes n. sp., waveform (A, B, D) and envelope (C, E) plots from parabola recordings made 3 km east of Hermannsburg, N.T., ~112 km WSW of Alice Springs; 14A shows an echeme segment with two initial isolated pulses, followed by rapidly repeated doublet pulses, the PRR measured at 192 Hz. Figs. 14B, C, are time expanded plots of the pulse doublets showing both the peaks to be strongly developed, with a weak secondary peak 1.5 ms following the second peak, evidently not so clearly developed after the first peak (the doublet inferred to be emitted asynchronously from both timbals); Fig. 14D, E illustrates single pulses occurring at start of echeme showing only weakly developed secondary peaks (marked 'S'). These plots also shows small but increasingly stronger peaks (arrowed) almost joined to the preceding primary peaks, these thought to represent the initial development of doublet peaks (i.e. increasing asynchrony of timbal emissions). Filtered to 7.5 kHz (A), and 9 kHz (B to E).