Grammadera (Deragramma) albida Brunner von Wattenwyl, 1878

Fianco, Marcos, Szinwelski, Neucir & Faria, Luiz R. R., 2022, Katydids (Orthoptera: Tettigoniidae) from the Iguaçu National Park, Brazil, Zootaxa 5136 (1), pp. 1-72 : 37

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.

Figures

FIGURE 17. Species of Phaneropterini (Phaneropterinae) from the ParNa Iguaçu. A and B: Grammadera (Deragramma) albida, male and female; C and D: G. (D.) steinbachi, male and female; E and F: G. (Grammadera) clara, male and female; G and H: Mendesius albosignatus, male and female; I: Tomeophera australis, male; J: T. modesta, male; K and L: Viadana piracicabae, male and female.

FIGURE 18. Calling songs of the species of Phaneropterini species from the ParNa Iguaçu. A–F: Anaulacomera argentina; C–E: Grammadera albida; F–H: Grammadera steinbachi. A, C and D: sonogram of one echeme, two and three isolated syllables, respectively; B, D and G: sonogram of a syllable; F, E and H: spectrogram of the respective syllable.