Poecilimon davisi Karabag, 1953

Chobanov, Dragan P., Sevgili, Hasan & Heller, Klaus-Gerhard, 2020, Bioacoustics of poorly known Poecilimon taxa (Insecta: Orthoptera: Tettigoniidae with redescriptions of P. pechevi and P. stschelkanovzevi, Zootaxa 4890 (4), pp. 535-553 : 547-548

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Poecilimon davisi Karabag, 1953


Poecilimon davisi Karabag, 1953 (davisi -group)

TURKEY: Isparta, Dedegöl Mt. , 1700–1800 m (37.69437ºN, 31.29401ºE), 14.06.2014, nymphs last instar and imago, leg. D. Chobanov & S. Kaya GoogleMaps , several males recorded ( Fig. 7 View FIGURE 7 , 8 View FIGURE 8 ), stridulatory file studied; Adana, Madenli vill., 1700 m (37. 32325ºN, 31. 83269ºE), 15.06.214, nymphs, leg. D. Chobanov & S. Kaya; Isparta, GoogleMaps Sultan Dagh near Aksehir , 1900 m (38.2833°’N, 31.3167°E), 28.06.2002, leg. K.-G. Heller, 2 males GoogleMaps recorded; Isparta, Yalvaç (38.2667°N, 31.1667°E), 28.06.2002, leg. K.-G. Heller, 2 males GoogleMaps recorded.

The males were active at night and produced short echemes with a duration of 0.4± 0.1 s (n=54; range 0.25– 0.63 s; Fig. 8 View FIGURE 8 ). During the recording sessions always at least two males were in acoustical contact. In this situation the echemes were often arranged in groups with two or more males alternating. However, occasionally also isolated echemes were heard (duration of intervals 3.9± 8.1s, range 0.2–47s, n=45). An echeme contained on average 9 syllables (SRR 20.2 Hz; T =25–26ºC). The syllables had a duration of 30.6±3.8 ms (n=13) and contained 5.1±1.1 (n=13) impulses ( Fig. 7 View FIGURE 7 ) resulting in a mean interval of 7.8 ms between the impulses. Sometimes intrasyllable gaps were as large as the gaps between the syllables. At 20ºC the SRR was only 15.3 Hz and the syllables had a duration of about 40.6±3.9 ms (n=9).

The spectrum of the song had its peak near 30 kHz ( Fig. 9 View FIGURE 9 ).

For details of the stridulatory file see Table 2 View TABLE 2 , Fig. 5 View FIGURE 5 .


Tavera, Department of Geology and Geophysics