Isophya modesta Frivaldszky, 1868 (Orthoptera: Tettigoniidae): a new bush-cricket species in Poland

Isophya modesta, a bush-cricket species belonging to the subfamily Phaneropterinae, was found for first time outside of forest-steppe zone. This study is report on I. modesta in Poland. It at our sites Przemyśl Foothills (Pogórze Przemyskie) south-eastern Polish Carpathians, where inhabits xerothermic grasslands, dry and semi-dry meadows, but also successional meadows abandoned arable land. One site occupied by located within nature reserve, other may be threatened secondary succession or afforestation. We estimated population densities around 30–80 adult individuals per hectare, whole known consisted total 3,000 15,000 individuals. The discovered populations either insular character connected continuous range with from Opilia Upland Western Ukraine.