Orthoptera faunas of Dinara, Svilaja, Kamešnica, and Troglav mountains and Livanjsko polje.

The Balkan peninsula is an important biogeographic region of Europe which houses the Dinaric Alps, a mountain range rich in biodiversity. The fauna of Orthoptera has, in recent years, been an important subject of study in Croatia, but many of the Dinaric mountains in Croatia remain poorly sampled. Bosnia and Herzegovina, with the exception of some foreign expeditions, remains almost completely unknown with regards to the distribution of Orthoptera. This paper presents the inventory of the orthopteran faunas of Dinara, Svilaja, Kamešnica, and Troglav mountains and Livanjsko polje, with research conducted in Croatia and Bosnia and Herzegovina in 2021 and 2022. A total of 67 localities were visited and 115 species were recorded. For each species in each locality, a simple abundance estimation was carried out and is reported here. A comparative checklist of species is provided, combining the literature and newly gathered data. Although many species were recorded, most of the visited areas would benefit from more research. Recently, with the establishment of Dinara Nature Park, conservation efforts in Croatia have increased but the same cannot be said for Bosnia and Herzegovina, where more conservation work is required.