FIGURES 156–161 in Review of the Balkan Isophya (Orthoptera: Phaneropteridae) with particular emphasis on the Isophya modesta group and remarks on the systematics of the genus based on morphological and acoustic data

FIGURES 156–161. Male calling song at two different speeds (air temperature at recording shown; time scale below): 156—I. miksici (BG: Gorski Dom Lodge); 157—I. plevnensis (BG: Apriltsi); 158, 159—I. longicaudata adamovici (BG: Karandila Locality, two males); 160—I. longicaudata longicaudata (BG: Bolata Valley); 161—I. modesta modesta (RO: Babadag). Break-signs in Fig. 161B indicate the missing silent interval of the syllable shown in Fig. 161A.