Eurycorypha meruensis, Sjostedt, 1910

Heller, Klaus-Gerhard & Hemp, Claudia, 2020, Hyperdiverse songs, duetting, and the roles of intra- and intersexual selection in the acoustic communication of the genus Eurycorypha (Orthoptera: Tettigonioidea, Phaneropterinae), Organisms Diversity & Evolution (New York, N. Y.) 20 (4), pp. 597-617 : 607

Eurycorypha meruensis ( Figs. 3 , 4b , and 5 )

The calling song consisted of long (30–60 s) series of short elements with intervals around 2 s ( Fig. 4b ) in between. Typically, a series started with groups containing two different echeme types and changed to simple echemes. In the echeme group ( Fig. 5 ), first a crescendoing group of three to four relatively long syllables (duration of last and longest syllable 26.4 ± 4.0 ms; n = 19; T = 20 °C; SRR 33 Hz) was heard, after a gap of 127 ± 9 ms (n = 11) followed by an echeme containing three to five very short syllables (duration 1.6 ± 0.9 ms; n = 11; T = 20 °C; SRR 30 Hz). In the simple echemes, only the first echeme type was found .

Figures

Fig. 3 Power spectra of male calling song of Eurycorypha species. In species with restricted frequency range, short black lines mark its end. Blue lines indicate power spectra of female responses

Fig. 4 a, b Oscillograms of male calling songs, overview (10 s sections)

Fig. 5 Oscillograms of male calling songs, details (1.5 s sections)