S. Mahunka szerk.: Folia Entomologica Hungarica 59. (Budapest, 1998)

FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK LIX 1998 pp. 29-34 Data to the knowledge of the aquatic, semiaquatic and shore bug fauna of Budapest and the county Pest (Heteroptera: Nepomorpha, Gerromorpha, Leptopodomorpha) L. Hufnagel Data to the knowledge of the aquatic, semiaquatic and shore bug fauna of Budapest and the country Pest (Heteroptera: Nepomorpha, Gerromorpha, Leptopodomorpha) - 37 heteroptera species are reported from 65 localities of 9 waters of Budapest and the county Pest, Hungary. The data are compared with the results of the previous investigations in different regions of Hungary. Keywords: Heteroptera, species richness, faunistic In the course of an ecological and coenological research lasting from the spring of 1991 till the late autumn of 1996 I collected aquatic, semiaquatic and shore bugs at 65 areas of 9 waters of Budapest and the county Pest. During my 97 day field research I collected and identified some 20 000 bugs as part of 311 sampling units. The sampling has been carried out in full accordance with the goal of the examination, using quantitative sampling methods and net-laying. For identifying the animals I used the taxonomic keys of Benedek 1969, Jansson 1969, 1986, Péricart 1990, Savage 1989, Soós 1963, Stusak 1980, Vásárhelyi 1990 and Vepsalainen and Krajewski 1986. Irrespective of the aims and detailed results published (Hufnagel 1994), I thought it would also be beneficial to summarize my data as a comprehensive faunistic article. To meet the requirement of briefness and clarity I have given only the actual place of occurrence and the year of collection. More detailed information about the habitat, date and quantitative data would make the whole report lengthy and perplexing. There is only limited information about the distribution and frequency of Leptopodomorpha and the data, shown below, are still not enough to draw any further conclusions. However, the detected 37 Gerro- and Nepomorpha are considered to be a significant number of species, comparing with that of other regions, data. Previous investigations revealed 29 species in the Hortobágy National Park, 32 in the Bükk National Park, 28 in the Kiskunság National Park, 27 in Lake Balaton, 27 in Szigetköz, 19 at Bátorliget, 7 in the Bares juniper forest (Bakonyi and Vásárhelyi 1981, 1987, \993a,b; Vásárhelyi 1985, Vásárhelyi and Bakonyi 1987, Vásárhelyi, Kondorossy and Bakonyi 1990). Among the species found several are considered extremely rare: Micronecta pusilla, Hesperocorixa