Dr. Murai Éva szerk.: Parasitologia Hungarica 12. (Budapest, 1979)
14. Andrclaelaps fahrenholzi (Berlese, 1911) It belongs to the widely distributed mites in Eurasia and Northern Africa. It has a wide range of hosts. Sometimes it badly infests their nests. A. fahrenholzi may be of importance in the natural foci of haemorrhagic naphrosonephritis (CHUMAKOV et al. 1956), tick typhus in Northern Asia ( PION TKO VSKA Y A and KORCHUNOVA, 1960) and tularemia (NELZINA et al., 1957). 15. Laelaps agilis (C. L. Koch, 1836) It is predominant among Gamasid mites (95. 3 per cent). It infests the hosts of the genus Apodemus. In the region under study L. agilis was collected not only from its typical host (A. flavicollis, A. sylvaticus), but also in high numbers from Clethrionomys glareolus and to a lesser extent from Mus musculus and Crocidura suaveolens. Similar results are reported by BALOGH (19 55) who considered this species on the basis of a great similarity in females for L. agilis var, jettmari. The important differences in males testify for the validity of an independent species as it was pointed out by MRCIAK (1965).It is distributed over the whole of Europe with its hosts. 16. Hyperlaelaps arvalis Zachvatkin, 1948 It is a typical parasite of voles, especially of the common vole (M. arvalis). In our sample, it rarely occurred. In Europe it occurs in lowland areas as well as in high montains. H. arvalis may be of importance in the natural foci of lymphocytary choriomeningitis. 17. Hypoaspis heselhausi Oudemans, 1912 It is a free living parasite infesting small mammals only accidentally and rarely occurring in the neste of small rodents. 18. Hypoaspis sardoa (Berlese, 1911) It belongs to the group of parasites. H. sardoa is a mite species infesting small mammals in their nests where it may be very abundant. It is known in many European countries. Summary Gamasid mites, 2694 in number, were collected from 305 small subterranean mammals examined in the localities Tómalom, Fertőboz (Com. Győr-Sopron) and Gic (Com. Veszprém). Eighteen mite species were found to belong to 5 families. The family Dermanyssidae dominated the 2687 specimens (99.7%) and represented 13 species (72.2%). Dominant species Laelaps agilis represented by 2567 specimens (95. 3%) and Hae mogamasus nidi by 64 specimens (2.4%) formed the bulk of acarofauna. The other families were represented in a small number of species and specimens. The findings of 65 specimens L. agilis on Clethrionomys glareolus and 11 specimens of the same species on Crocidura suaveolens are remarkable. A very important result from the zoogeographical point of view is the absence of Laelaps clethrionomydis , although 56 individuals of CI. glareolus were examined. Eight mite-species may be of importance as the maintenance hosts and vectors of pathoergonts of wild animals and Man. They are the foHowing species: Macrocheles glaber, Hirstionyssus isabellinus, H. latiscutatus, Eulaelaps stabularis, Haemogamasus pontiger, H. nidi , Androlaelaps fahrenholzi , Laelaps agilis , and L. arvalis.
