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
Author
Ivković, Slobodan
Author
Iorgu, Ștefan
Author
Horvat, Laslo
Author
Chobanov, Dragan
Author
Korsunovskaya, Olga
Author
Heller, Klaus-Gerhard
text
Zootaxa
2017
4263
3
527
542
journal article
33072
10.11646/zootaxa.4263.3.5
594bb190-aacd-4326-b9ad-01a5c3123366
1175-5326
573657
FF8FC6FD-0BE0-43EB-A5C4-881A4C70D792
Montana
striata
(Thunberg, 1815)
—
Fig. 7
B.
Localities
:
Romania
,
Botoșani
,
Hilișeu-Horia
,
N 48°00.60'
,
E 26°17.40'
,
210 m
a.s.l.
,
25.vi.2012
, leg.
I. Ș.
Iorgu
(Iorgu
et al.
2013)
.
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. 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.