Grammadera (Deragramma) albida Brunner von Wattenwyl, 1878

Fig. 17A, B

Distribution: Argentina: Misiones; Brazil: Paraná; Paraguai: Paraguari.

New record for the Paraná State.

Comments: The species is easily found on the grasses and bushes of open areas within the preserve.

Bioacoustics (Fig. 18D–F): Males stridulate continually during the entire day and night. The calling song is simple, since the emitted syllables are not grouped in echemes. Each syllable presents a gradual increase of intensity until its peak, followed by a gradual decrescendo.

Dominant frequency: 28,9 ± 0,3 kHz.

Bandwidth: 4,7 ± 0,8 kHz.

Duration: Syllable: 6 ± 0,8 ms.

Mute interval: Syllable: 0,7 ± 0,17 s.