Typophyllum inflatum Vignon, 1925

Fianco, Marcos, Szinwelski, Neucir & Faria, Luiz R. R., 2022, Katydids (Orthoptera: Tettigoniidae) from the Iguaçu National Park, Brazil, Zootaxa 5136 (1), pp. 1-72 : 60-61

Typophyllum inflatum Vignon, 1925

Fig. 33

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

Comments: Even if this species was previously recorded for the Paraná State ( Cigliano et al. 2022), the record for the Iguaçu National Park is new. We collected individuals which varied considerably regarding coloration patterns: greenish, whitish, greenish-whitish, brownish-whitish, greyish were recorded, even if dark brown specimens were most frequent .

Bioacoustics ( Fig. 33E–G ): The stridulation only occurs at night, when males produce very conspicuous short echemes that are composed by sequences of two syllables. Such syllables are distinctly emitted with a gradual increase and a posterior decrease of intensity. The frequency of the sound varies along the duration of the syllables, and an evident harmonic appears at half of the dominant frequency.

Dominant frequency: 21.3 ± 0.4 kHz.

Bandwidth: 3.5 ± 1.5 kHz.

Duration: Syllable: 0.04 ± 0.004 s; Echeme: 0.18 ± 0.004 s.

Mute interval: Syllable: 0.1 ± 0.005 s; Echeme: 0.2 ± 0.01 s.

Figures

FIGURE 33. Typophyllum inflatum (Pterochrozinae). A and B: male and female, respectively; C and D: live specimens, male and female, respectively. E: sonogram of an echeme; F: sonogram of a syllable; G: spectrogram of the syllable.