Grammadera (Deragramma) steinbachi Bruner, 1915

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) steinbachi Bruner, 1915

Fig. 17C, D

Distribution: Argentina: Misiones; Bolivia: Santa Cruz; Brazil: Paraná.

New record for the Brazil and for the Paraná State.

Comments: The species was recently recorded in southern of Santa Cruz Province, Bolivia, closer to the Brazilian border ( Gorochov 2016).

Bioacoustics ( Fig. 18 G–I ): The stridulation is performed during the day and also at the beginning of the night. Males produce echemes of short duration, each one formed by two syllables. The syllables present a common crescendo until reaching the peak that is followed by a decrescendo.

Dominant frequency: 27 ± 0.5 kHz.

Bandwidth: 5.3 ± 0.5 kHz.

Duration: Syllable: 16 ± 2 ms; Echeme: 47 ± 4 ms.

Mute interval: Syllable: 15 ± 2 ms; Echeme: 0.7 ± 0.2 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.