Iaratrox maculata (Redtenbacher, 1891) Fig. 2C, D; 8A, B Distribution: Argentina: Misiones; Brazil: Paraná, Rio de Janeiro, São Paulo, Santa Catarina; Paraguay: Paraguarí. New record for the Paraná State. Comments: The individuals were collected on branches, tree trunks and shrubs. Bioacoustics (Fig. 3D–F): The calling song of this species is complex, as different types of syllables are produced. Each echeme is composed by a sequence of nine to 15 trios of syllables. Each trio initiates with a very short syllable, that is followed by a long one, and by the third syllable that presents an intermediary duration. It is noteworthy that each echeme always finishes with a long, i.e., the second, syllable. Dominant frequency: 13 ± 1.1 kHz. Bandwidth: 5.7 ± 2.8 kHz. Duration: Pulse: 0.07 ± 0.06 s; Syllable: 0.32± 0.02 s; Echeme: 5.4 ± 2.2 s. Mute interval: Syllable: 0.05 ± 0.02; Echeme: 28 ± 7 s.

Published as part of Fianco, Marcos, Szinwelski, Neucir & Faria, Luiz R. R., 2022, Katydids (Orthoptera: Tettigoniidae) from the Iguaçu National Park, Brazil, pp. 1-72 in Zootaxa 5136 (1) on pages 9-10, DOI: 10.11646/zootaxa.5136.1.1, http://zenodo.org/record/6550041