Viadana (Viadana) piracicabae Piza, 1969

Fianco, Marcos, Szinwelski, Neucir & Faria, Luiz R. R., 2022, Katydids (Orthoptera: Tettigoniidae) from the Iguaçu National Park, Brazil, Zootaxa 5136 (1), pp. 1-72 : 40

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Viadana (Viadana) piracicabae Piza, 1969


Viadana (Viadana) piracicabae Piza, 1969  

Fig. 17K, L View FIGURE 17 ; 22E View FIGURE 22

Distribution: Brazil: Paraná, São Paulo; Paraguay: Alto Paraná.

New record for the Paraná State.

Comments: This is the second record of the species after its original description. Gorochov (2015) recently presented a record of the species for Puerto Bertoni, Alto Paraná, Paraguay, a place nearby the Iguaçu National Park.

Bioacoustics ( Fig. 21A–C View FIGURE 21 ): The stridulation is performed by males during the day and at the beginning of the night. The echemes are composed by seven to 35 syllables. Each syllable is emitted with a quickly increase and after that a long decrescendo of intensity.

Dominant frequency: 21.8 ± 0.7 kHz.

Bandwidth: 3 ± 0.1 kHz.

Duration: Syllable: 0.01 ± 0.002 s.

Mute interval: Syllable: 2 ± 0.5 s.