During field trips conducted in 2015 and 2016 at 22 different localities on Jadovnik Mountain, 68 species were recorded. The calling songs of 4 species were studied in detail, and a new song type of Isophya clara was described. Metrioptera brachyptera and Locusta migratoria are rerecorded for the first time in 40 years for the Serbian fauna.Jadovnik Mountain is located in southwestern Serbia, on the western edge of Pešter plateau, between Prijepolje and Sjenica, near the border of Montenegro. Triassic sandstones and limestones form this 12-km long mountain with its highest peak being Katunić (elevation 1734 m a.s.l.; Marković, 1990). The high parts are covered with meadows and pastures, while the slopes are covered with dense beech and spruce forests. Jadovnik is best known for Sopotnica Waterfalls, which in 2005 was proclaimed a Natural Monument.