Montana striata (Thunberg, 1815)

Ivković, Slobodan, Iorgu, Ștefan, Horvat, Laslo, Chobanov, Dragan, Korsunovskaya, Olga & Heller, Klaus-Gerhard, 2017, New data on the bush-cricket Montana medvedevi (Orthoptera: Tettigoniidae), critically endangered in Europe (EU 28), and a comparison of its song with all known song patterns within the genus, Zootaxa 4263 (3), pp. 527-542: 535

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Montana striata (Thunberg, 1815)


Montana striata (Thunberg, 1815)  — Fig. 7View FIGURE 7 B. 

Localities: Romania, Botoșani, Hilișeu-Horia , N 48°00.60', E 26°17.40', 210 m a.s.l.,, leg. I. Ș. Iorgu (Iorgu et al. 2013)GoogleMaps  . Russia, Kursk (Centralno-Chernozemny Reserve), vii.2014 and 2015, leg. A. Benediktov, A. Mikhailenko (3 males)  .

The calling song of this species is quite complicated. Two different echemes are combined to a phrase and this phrase is repeated in a fast sequence at least for a few minutes (longest uninterrupted recording 2 min). One echeme consists of three short syllables with high amplitude (syllable repetition rate ca. 60–70 Hz at 24–25°C), the other of five longer ones (syllable repetition rate ca. 20–30 Hz at 24–25°C; Fig. 7View FIGURE 7 B) with lower amplitude. When an animal starts to sing, it often produces only the high-amplitude echemes, separated by longer intervals, and then added the low amplitude echemes. In a recording lasting 15 minutes the animal omitted the low-amplitude echemes several times and used only the loud ones with the corresponding silent intervals.