Преглед фауне дневних лептира на ширем подручју Јелашничке клисуре (Lepidoptera: Hesperioidea и Papilionoidea) / The butterflies of Jelašnička Klisura Gorge in Eastern Serbia (Lepidoptera: Hesperioidea and Papilionoidea)

Results of butterflies fauna research (Lepidoptera: Hesperioidea and Papilionoidea) in Jelasnicka Klisura Gorge and its associated parts of Suva Planina Mountain, (SE Serbia) are shown. Summarizing existing literaly data and intensive field work data in a period 2008-2013. we determined presence of 135 species (of whom 117 species in jelasnicka Klisura Gorge), what represents 68% butterflies fauna in Serbia (199 species). For the first time 10 species: Pyrgus alveus, Heteropterus morpheus, Lycaena virgaureae, Lampides boeticus, Cupido alcetas, Iolana iolas, Plebejus pylaon, Polymmatus escheri, Argynnis pandora and Erebia euryale, were determined through this research. This is the first time in local literature that 35 species are given a domonant type of habitat related to species, where they are most commonly encountered. Ancestral (gender) coefficient is investigated – the ratio of number species to its genderes, as quantitative indicator of fauna richness. Analysis show the great value of it, every gender is represented with two types on average, what represents the richness in diversity of this type of insects. Relative number of population of determined species analysis show uniformed distribution by category ( on a scale from +, 1, 2 and 3), what indicates richness and stability of ecosystem. Analysis of faunal origin shows that Eurosiberian and Eurooriental type dominance, and five faunal groups are present within faunal ensamble. Jaccard similarity coefficient is used for faunal structure analysis, to place faunal composition of butterflies in three gorges, in order: Jelašnička Klisura Gorge, kresna Gorge in Bulgaria, and Djetinja Gorge in Western Serbia. Analysis show that climate plays the crucial role in faunal composition. Kresna Gorge in Bulgaria (which is influenced by the Mediterranean climate) although geographically closer to Jelasnička Klisura Gorge does not have as similar fauna as it. On the other hand it does with Djetinja, which is further but belongs to the same climate type. Among determined species there are five of them on the list NATURA 2000 species. Aspect of protection analysis shows continuous stability of explored area. First of all stability provides richness of geological and soil baase, as well as variety of other ecological factors and richness of plant communities and habitats. Anthropogenic factor is extremely important because many types of daily butterflies tend to stay in habitats near human settlements. Extensive agriculture, marginally represent chemicals, absence of industrial polluters guarantee the survival of numerous species.