FIGURE 19. Xeropsalta thomsoni 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 19. Xeropsalta thomsoni n. sp. Song details as in Figs. 18A to D. Fig. 19A, time expanded details of the macrosyllable structures within a single echeme, the initial five macrosyllables each comprised two nearly merged syllables. The final two macrosyllables are each comprised of three nearly merged syllables. Fig 19 B, C, waveform and envelope plots, time expanded, of the final macrosyllable shown in Fig. 19A, showing the three syllables, each with 6 clearly defined pulses, the mean duration of the individual pulses 0.37 ms, and PRR ranging between 1069–1085 Hz. Fig.19D, E, waveform and envelope plots of segment of extended macrosyllable (see Fig. 18C for location), emitted prior to the break-up of the song into discrete echemes. This shows a short segment of continuous song, in which four macrosyllables are discernable, each macrosyllable finishing with a high amplitude pulse, each macrosyllable with three clearly defined sets of double pulses, the strongest followed by weaker secondary pulses (timbal relaxation 'OUT' pulses). The arrangement of the pulses, including the secondary pulses, indicates an apparent groupings with 2, 4, and 3 pulses, shown in the plot. Filtered 3 kHz.