Uherkovich Ákos: A Villányi-hegység botanikai és zoológiai alapfelmérése (Dunántúli Dolgozatok Természettudományi Sorozat 10., 2000)

Nagy, Antal & Nagy, Barnabás : The Orthoptera of the Villány Hilss (South Hungary) - A Villányi-hegység egyenesszárnyú (Orthoptera) faunája

Dunántúli Dolg. Term. Tud. Sorozat 10 147-156 Pécs, 2000 The Orthoptera fauna of the Villány Hills (South Hungary) Antal NAGY & Barnabás NAGY NAGY, A. & NAGY, В.: The Orthoptera fauna of the Villány Hills (South Hungary) Abstract. Based on earlier papers and collections 45 species (21 Ensifera and 24 Caelifera) - among them 7 are protected by law - were detected in the hills. This fauna can be characterised by high ratio (65.6%) of the southern (e.g. Mediterranean, Ponto-Mediterranean) elements, because of the strong submediterranean effect on this region. Most of these species are endangered by different habitat disturbances (mining, surface-fire, agriculture). Introduction Although there are some publications and collected (untreated) materials on the Orthoptera fauna of the Villány Hills which is the southernmost situated hills in Hungary, and those were not summarised up to the present. The purpose of this paper is to give a summary on the Orthoptera fauna of this region based on this material presented by a number of researchers as detailed below. One of the earliest data mentions the presence of Myrmecophilus acervorum at Nagy harsány (CSÍKI 1905). The second author of this paper made several collectingsurveys in 1958, 1964, 1965, 1966, 1981 and 1985 on the Szársomlyó, the Fekete and the Tenkes hills. These results were published on the Isophya modesta (NAGY, B. 1974) and Saga pedo (NAGY, B. et al. 1983) but the rest of his data are unpublished. RÁCZ & VARGA (1985) studied the Orthoptera fauna between 1968 and 1971. They made a comparison between the Mecsek and the Villány Hills. They found only 19 species, because of the relatively late collections (September). Their sampling sites were destroyed by the mining since then. J. MAJER made repeated collections on the Szársomlyó in 1988 (and partly in 1991) and he put his material at our disposal. The first author of this paper have been studying the Orthoptera fauna of 15 sampling sites (Fig. 1) since 1997 regularly. The first part of these results were already published (NAGY, A. 1999). Material and methods The Villány Hills is situated in South Hungary, close to the Hungarian-Croatian border. It represents the southernmost isolated member of the Hungarian Middle Mountains. It is East-West oriented low range, about 23 km long and 2-3 km wide. The highest peaks are about 400-450 m (Fig. 1). The Szársomlyó (Harsány Hill) and the Fekete Hill are protected areas of the Duna-Dráva National Park. The geographical, geological and climatic situation can be found at MAROSI & SOMOGYI (1990), MARGITTAI (1977), LOVÁSZ (1977) and HORVÁTH & PAPP (1964).