Polysarcus zigana Unal & Chobanov 2013

Polysarcus zigana Ünal & Chobanov, 2013

Distribution. P. zigana is endemic to Anatolia. It was recorded only from Giresun and Trabzon provinces of Turkey (Figure 3A) (Ünal 2013).

Song recording. Male specimens collected from Turkey, Giresun, Tamdere, 40°30.24’ N, 038°21.09’ E, 1692 m, 17.VIII.2015 (by D. Şirin, M.S. Taylan & A. Mol) and calling song recorded from two males at 31 °C in the field and 25–26 °C in the laboratory (by D. Şirin & M.S. Taylan).

Description of song. Four records from two males were examined. The calling song has a complex signal structure and its durations vary between 21.87– 28.24 s (24.65 ± 2.12). Oscillographic analyses show that the male calling consists of three different sections (I, II and III) (Figure 3B). The Section I has a crescendo structure and its duration varies between 13.15– 19.45 s (16.14 ± 1.58) and consists of 16–17 syllable series, which include two different syllable groups (Figure 3C). First syllable group duration varies between 158–189 ms (172 ± 6.12) and includes approximately 7 syllables (first syllable is the loudest one and its duration varies between 27–34 ms (31± 1.75), whereas the other syllables duration varies between 19–22 ms (21.08 ± 0.15)). The second syllable group duration varies between 716–908 ms (826 ± 12.12) and includes 16–18 syllables, and the syllable period duration varies between 39–51 ms (46.25 ± 1.77) (Figure 3C). The Section II consists of a series of regular syllables and its duration varies between 3.3– 3.8 s (3.46 ± 0.08). This section includes 79–84 (82.15 ± 0.68) syllables without intervals. The syllables period duration varies between 29–42 ms (36.38 ± 2.18). Each syllable includes two elements (quieter and louder) (Figure 3D). First element of a syllable is a quieter part and its duration varies between 4 and 9 ms (5.77 ± 1.19). The first element of syllable is followed by a louder part with an interval of 24–36 ms (28.47 ± 1.98). The Section III involves isolated regular syllables with an interval 453–756 ms (576 ± 21.02). This section includes 8–10 (9.05 ± 0.26) syllables and syllable period duration varies between 55–76 ms (62.28 ± 2.26) (Figure 3E). The syllables include two elements. First element of a syllable is a louder part and its duration varies between 30–40 ms (33 ms ± 1.89). The second element of a syllable is a quieter part and its duration varies between 22–29 ms (24 ms ± 1.27) and approximately includes two distinct pulses.