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 eversmanni (Kittary, 1849) —songtype II—Fig. 7H. Locality : Kazakhstan , SW Zharly , steppe habitat, 195 m a.s.l. , N 48°29' , E 55°30' , 16.vi.2016 , imago and nymphs LI, leg. D. Chobanov. In an animal recorded at night, the calling song consisted of a sequence of echemes each containing 5–7 syllables (syllable repetition rate 40 Hz), produced in short series or without interruption for at least 45 s. The echemes were separated by short intervals of about 150–200 ms ( Fig. 7 H) and repeated at a rate 3 Hz ( Table 1 ). The calling songs of both songtypes of M. eversmanni (see above) are so different that either two species may be involved or it is another case of a song dimorphism as in M. decticiformis (see above and Discussion).