Montana tianshanica (Uvarov, 1933)

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 : 539

Montana tianshanica (Uvarov, 1933) — Fig. 7 I.

Locality: China, Xinjiang, Tian chi (Tien chi (Himmelssee) in Tian shan near Bofda Feng (mountain) (N 43°54', E 88°07'), 2000 m a.s.l., 30.vii.2009, leg. K.- G. Heller (5 males). According to the locality name in the description of the species and the comments and map in Sjöstedt & Hummel (1933), our specimens were collected at or very close to the type locality.

The calling song of M. tianshanica differs from that of all other Montana species. It consists of relatively short, polysyllabic (ca. 3–9 macrosyllables) echemes (syllable repetition rate ca. 25 Hz) separated from each other by intervals of about the same duration ( Fig. 7 I). Regularly some echemes contain microsyllables at the beginning and only few macrosyllables.

Figures

FIGURE 7. Oscillograms of calling songs of Montana species. A— medvedevi, B— striata (left Romania, right Russia), C 1 — decticiformis (Shatpe 27 ° C + sun), C 2 — decticiformis (Zharmysh 20 ° C), D— taurica, E 1 — montana (Austria), E 2 — montana (Ukraine, 25 ° C), F— daghestanica, G— armeniaca, H— eversmanni (see text), I— tianshanica, J 1 — tomini (25 ° C), J 2 — tomini (16 ° C), K— helleri. See Table 2 and text for details.