Bioacoustics of Parasubria vittipes

Comments: The species is less abundant than the other species of the tribe, and the individuals were always collected on tree trunks. We believe that this species was subsampled, and other collecting methods must be tested. Bioacoustics ( Fig. 3G–I ): The species’ stridulation was abundant on sampling sites in chorus behaviour, especially in Foz do Iguaçu, even if the individuals were rarely visualized. The echemes present a wide variation considering their duration, since there is an important variation in the number of syllables that composes each of them, from three to more than six. The interval between echemes also varies a lot. Each echeme is composed by a constant sequence of syllables, produced both in opening as in the closing of the tegmina. The syllables of opening are very brief and with low amplitude, whereas those related to closing is long, with high amplitude. Additionally, the syllables of the beginning of the echeme are shorter than those at the end of the echeme. Dominant frequency : 9.96 ± 0.7 kHz. Bandwidth : 2.5 ± 0.1 kHz. Duration : Pulse: 0.05 ± 0.004 s ; Syllable: 0.18 ± 0.14 s ; Echeme: 1.3 ± 0.7 s . Mute interval : Syllable: 0.18 ± 0.14 s ; Echeme: 1.3 ± 0.7 s .