Ornebius alatus

Ornebius alatus (Saussure, 1877) Calling song A chirp that increases the interval between syllables throughout the emission. Overall, the signal presents phrases with 8.23 ± 2.32 (4.92–10.37) seconds and an interval between syllables of 0.16 ± 0.01 (0.143 –0.183) seconds. Each phrase comprises 29.5 ± 5.97 (21–35) syllables with a peak frequency of 6.13 ± 0.02 (6.11–6.15) kHz (Figures 17J and 18H). Collection site Porto Alegre, near the Parque Natural Municipal Saint-Hilaire. Only one male was collected. The individual was found in shrubs up to 50 cm in height, temperature of 24°C, at 10 am in February 2023. Remarks This is the first official publication of the species’ sound record.