Folia Historico-Naturalia Musei Matraensis - A Mátra Múzeum Természetrajzi Közleményei 6. (1980)

Kiss, O.: A Mátra hegység Ilona-völgyének Trichopterai

Fol. Hist.-nat. Mus. Matr. 6. 1980. THE TRICHOPTERA IN THE ILONA VALLEY OF THE MATRA MOUNTAINS (HUNGARY) KISS Ottó Ho Si Minh Teachers' Training College, Eger ABSTRACT: Larvae, pupae and imagos of Trichoptera were collected in the higher region of the Ilona Valley. There were seven sampling localities marked out with the mosaic-pattern theory. The profile diagrams of the localities were also made indicating the species collected as well. Grunoecia irrorata CURTIS and Silo nigricornis PICTET have been found there for the first time. Data concerning the Trichoptera of this area can be found in the papers by SÁTORI (1939 b) and ÚJHELYI (1974). SÁTORI collected both larvae, pupae and imagos, ÚJHELYI only collected imagos and processed the data obtained by light-trapping. Some species indentified by SÁTORI e.g. Rhyacophila hungarica SÁTORI and Wormaldia triangulifera MAC LACHLAN have been revised in accordance with the latest taxonomic works, and rectified as Rhyacophila polonica MAC LACHLAN and Wormaldia occipitalis PICTET, respectively by ÚJHELYI. ÚJHELYI' s opinion has also been vindicated by the results of the author' s collecting work. METHODS Larvae, pupae and imagos of Trichoptera were collected in the higher rvgion of the Ilona Valley from July 1977 to October 1979 applying the mosaic eattern theory and using the methods of KAMLER AND MACAN. Taking the paried substrate mosaics of the stream bed into consideration there were 7 sampling localities marked out. Observations on ecology included measuring the temperature of both the air and water, depth and velocity of water, determining pH value and indentifying the flora on the banks. Profile diagrams of the sampling stations were also made indicating the characteristics of the bed, the depth of water and water velocity as well as the species inhabiting the substrate mosaics. The investigations carried out are a part of the research project entitled 'The Natural History of the Cserhát and Mátra Mountains' promoted by the Mátra Museum. The substantdial proportion of the sampled material is in the Mátra Museum and the rest with the author. The indentification of species was done by uksing the works of HICKIN (1967), LEPNYEVA (1966), MAC LACHLAN (1968, Reprinted) and STEINMANN (1970). 115