S. Mahunka szerk.: Folia Entomologica Hungarica 54. (Budapest, 1993)

FOLIA ENTOMOLOG ICA HUNGARICA ROVARTANI KÖZLEMÉNYEK LIV 1993 p. 17-45 Flies (Diptera) in macrofungi species in Hungary By A. Dely-Draskovits and M. Babos (Received March 1, 1993) Flies (Diptera) in macrofungi species in Hungary. - Among the insects developing in the fruiting body of fungi, Diptera are both the most numerous and the most diverse regarding their species composition. The fungi populations living in the grass and moss layer of different habitats are the potential hosts - and hence microhabitats - of several Diptera. To investigate the fungicolous Diptera fruiting bodies of 344 taxa of fungi were collected from 132 sites in Hungary. From the Hungarian Agaricales s. I. taxa only 25% is represented, but these comprise 80 % of the common fungi. From the examined 1305 samples nearly 50 000 (lies emerged (they belong to 140 determined species of 26 families). The zoological, ecological and plant protection aspects of the research were published more than 15 years ago. In this paper the mycological aspects of the data are evaluated, and a comprehensive summary of conclusions is given. Introduction Several papers were published on fungicolous Diptera. Both wild and cultivated species of fungi were studied. Most of these studies were focused on the Agaricales s.l. ordo. The theoretical principles were laid down by Dufour 1839, 1840. Winnertz (1863) was the first mentioning the fungi living Diptera in his Mycetophilidae monograph. The history of further research on this topic conducted in North America, Asia and Europe was discussed by Dely-Draskovits and Babos (1975). The citations listed in that paper must be completed with the following literature published since then by North European scientists: Hackman 1976, 1979; Hackman and Meinander 1979; Stohls and Kaila 1990; Stahls et al. 1989; Yakovlev and Tobias 1992. This Hungarian study was also aimed to investigate the flies emerging from Agaricus s.l. species. The collection of samples -fruiting bodies infected by Diptera- took place in seven consecutive years between 1964 and 1970. The methods and the dipterological, ecological, and plant protection aspects of this research were published earlier (Dely-Draskovits 1972/a, b, 1974, 1976; Dely-Draskovits and Babos 1973, 1974, 1976/ a, b, c; Dely-Draskovits and Mihályi 1972, Dely-Draskovits and Papp 1973; Papp 1972). The above mentioned publications were dealing with the zoological aspects, while this paper is evaluating the mycological aspects. Results Macrofungi Samples were collected from 132 sites, which covered the five main floristical and biogeographical regions (Pócs 1981) of Hungary, and almost all the important fungi producing areas were sampled. Hence the results of these observations can be regarded as representative for the whole area of Hungary.