부산대학교 도서관

So far, 81 species of the orthopterid orders are found in Vrachanska Planina according to the published and original data (Orthoptera – 79 species, Blattodea and Mantodea – one species each). Other 6 species of Orthoptera have been recorded in the areas up to 5 km beyond the borders of the mountain. First records from Vrachanska Planina are reported here for 1 order, 1 superfamily, 2 families, 5 subfamilies, 8 tribes, 16 genera, 3 subgenera and 31 species. Published and original material of 70 species is checked and identified. A subspecies is synonymized: Ephippiger ephippiger ephippiger (Fiebig, 1784) (= Ephippiger ephippiger balkanicus Andreeva, 1985, syn. n.). Typical mountain species with a lower limit of distribution in Bulgaria running through the highest ridge of Vrachanska Planina are Psorodonotus fieberi, Gomphocerus sibiricus and Myrmeleotettix maculatus. The reported species are divided in 25 categories by chorology and 14 categories by origin. Most numerous according to chorotypes are the Eurosiberian (20 %) followed by the Central and South European (16 %) species as well as according to origin the Siberian (23 %) followed by the Central European (19 %) faunal elements. Endemic taxa of Orthoptera in Vrachanska Planina are 1 genus, 5 species and 1 subspecies, one of which is Bulgarian endemic species and the remaining taxa are Balkan endemics. The northernmost, westernmost, easternmost and southernmost localities in the ranges of 1 genus and 4 species are situated in Vrachanska Planina. The investigated area lies at the northern or eastern range limits of other 3 genera, 2 species and 1 subspecies. Leptophyes discoidalis and Miramella sp. are among the rarest species of Orthoptera in Bulgaria.