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Oscillographic representation of the calling songs (A, B) of two males of Isophya bucovinensis sp. n. and detailed syllables (C, D). A, C Călimani Mountains, 12 Apostoli peak, 1730 m asl (air temperature 24°C) B, D Suhard Mountains, Omu peak, 1860 m asl (air temperature 25°C).
