Account
What the sources say about this taxon, as written.
description · 
Plazi
Description of song: Chorthippus biguttulus euhedickei male calling song generally consists of two different phrases ( Fig. 17 B). The duration of the song varies depending on syllable numbers and gaps. The calling song usually starts with a typical polysyllabic phrase (similar with C. biguttulus biguttulus ) and continues with two similar irregular phrases which have no observable syllables (repeated unit periods). The first phrase comprises 15– 40 syllables ( Fig. 17 C) whose durations generally change between 85 and 110 ms ( Fig. 17 C). The second and third phrases (another type phrases) generally continue with 1–2 s periods ( Fig. 17 D). Published song data, used for comparison : Helversen 1989 ; Şirin 2009 .
description · Plazi
Description of song: Chorthippus biguttulus euhedickei Ganos population male calling song generally consists of two similar phrases which have different amplitudes and partly synchronized ( Fig. 18 B). The duration of a phrase varies according to syllable numbers, durations and gaps. The calling song usually starts with a typical polysyllabic phrase (similar to C. biguttulus ) and then continues with a low amplitude phrase which has similar repeated unit periods as the first phrase. The first phrase comprises usually 35–55 syllables whose durations generally last for 140–155 ms (except last four syllables) ( Fig. 18 C). The durations of the last four syllables vary between 220 and 350 ms. The second phrase comprises 9–11 syllables whose durations generally change between 130 and 260 ms ( Fig. 18 D).
xeno-canto
iNaturalist