FIGURE 17 in New species of Drymopsalta Heath Cicadas (Cicadidae: Cicadettinae: Cicadettini) from Queensland and Northern Territory, Australia, with overview of genus

FIGURE 17. Amplitude spectra of the buzzing echemes and chirping songs of; A, B, Drymopsalta hobsoni sp. nov. (Bringalily State Forest), and C, D, Drymopsalta acrotela sp. nov. (Florence Falls, Litchfield National Park). Spectra based on analyses of 25–60 seconds song segments. The horizontal bars indicate the higher amplitude frequency envelope of each spectrum, which are used to estimate the dominant frequency and nominal bandwidths within each song. The apparent sidebands measured from the spectra are tabulated. Field recordings.