title: Acoustic signals of the bush-crickets Isophya (Orthoptera: Phaneropteridae) from Eastern Europe, Caucasus and adjacent territories
abstract: Temporal patterns and frequency spectra of the songs and stridulatory files of 14 species of the genus of the phaneropterid bush-crickets Isophya from Eastern Europe, Altai and the Caucasus are given. The sound signals of the species studied can be separated into three main types: (1) those consisting of two syllables (Isophya gracilis, I. kalishevskii, I. schneideri, I. caspica, Isophya sp. 1); (2) one syllable and series of clicks (I. modesta rossica, I. stepposa, I. taurica, I. brunneri, I. d
journal: European Journal of Entomology