Chorthippus (Glyptobothrus) biguttulus euhedickei Helversen, 1989

Şirin, Deniz, Mol, Abbas, Taylan, Mehmet Saýt, Demýr, Eyüp & Kizilocak, Dýlan Hevra, 2017, The Gomphocerinae Tarbinsky, 1932 (Orthoptera: Acrididae) fauna of the Turkish Thrace, Zootaxa 4299 (3), pp. 361-383 : 377

Chorthippus (Glyptobothrus) biguttulus euhedickei Helversen, 1989

Chorthippus biguttulus euhedickei Helversen, 1989: 4, 2635 .

Distribution in the Palaearctic region: North Western Anatolia and Macedonia ( Helversen 1989; Şirin 2009; Mol & Zeybekoğlu 2013).

Distribution in the Turkish Thrace: First record for the study area.

Material examined: KIRKLARELİ: Between Kofçaz-Kocayazı , 672m a.s.l., N: 41°58.123’ E: 27°10.315’, 31.VII.2013, 12 ♂♂, 8 ♀♀, leg.: D. Şirin & E. Bayram (Calling song recorded from two males at 26 ˚C in the field (by D. Şirin); Geçitağzı, Kocabayırtepe around, 501m a.s.l., N: 41°56.367’ E: 27°19.299’, 31.VII.2013, 8 ♂♂, 9 ♀♀, leg.: D. Şirin & E. Bayram; Between Gökyaka-Boztaş, 471m a.s.l., N: 41°54.137’ E: 27°38.954’, 31.VII.2013, 11 ♂♂, 7 ♀♀, leg.: D. Şirin & E. Bayram ( Fig. 17 A).

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.

Figures

FIGURE 17. The distribution of Chorthippus (Glyptobothrus) biguttulus euhedickei populations in Turkish Thrace Region (A) and male calling song oscillograms at three different durations (B, C and D).