Dr. Murai Éva szerk.: Parasitologia Hungarica 11. (Budapest, 1978)
Malareus arvicolae (Ioff, 1948) It was reported from Hungary first by SZABÓ (1972) from A. flavicollis, Micromys minutus, Pitymys subterraneus. One male was found on M, arvalis 28 September, 1971, in locality Tómalom. Megabothris turbidus (Rothschild, 1909) This species represented by one female from A. flavicollis, 28 September, 1971 caught in locality Fertőboz. Monopsyllus sciurorum sciurorum (Schrank, 1803) This species is a typical parasite of the red squirrel; one female was found on an uncommon host, M. arvalis, 30 October, 1971 in locality Gic, Hosts and their fleas The most represented host species in examined localities were A. flavicollis, A. sylvaticus and C. glareolus. Species composition of fleas an A. flavicollis is characterized with predominance of Ctenophthalmus solutus . Ct. agyrtes bosnicus and Nosopsyllus fasciatus. The other species (H. talpae, P. fallax, Ct. assimilis, M. turbidus) occur sporadically. The highest infestation of A. flavicollis was observed in locality Gic (85% of trapped animals), average number of fleas per one trapped host was 3.5- and per one positive host 3. 59. The same species composition as Apodemus flavicollis has A. sylvaticus which in all three localities was most frequently infested with Ct. solutus. The highest average number per one trapped host (1.87) and per one positive host (3.11) was observed in locality Fertőboz. The next two localities had an (approximately) lower index of infestation by one half. The highest infestation of Clethriomomys glareolus was observed in locality SopronTómalom (68.97%) animals were infested with fleas). Number of fleas per one trapped host was 2. 14, per one positive host 3.10. Peromyscopsylla fallax was the most frequent species on C. glareolus. The bank vole was the most abundant species in the locality Gic but with the lowest infestation. As to the other species of small mammals, we found some specimens only and it is therefore not possible to compare their infestation with fleas. Crocidura leucodon and C. suaveolens are new hosts of fleas in the territory of Hungary, The list of fleas which were found on both species is given in Tables 1-3. References SZABÓ, I. (1966a): Flea species new for the Hungarian fauna. - Ann. Hist-nat. Mus. Nat. Hung. , 58^ 371-372. SZABÓ, I. (1966b): The host of flea species (Siphonaptera) in Hungary. I. - Vertebr. Hung. Mus. Hist-nat. Hung., 7. 177-191. SZABÓ, I. (1969): On the coexistence of fleas (Siphonaptera) on mammals in Hungary. - Parasit. Hung., jï. 79-118. SZABÓ, I. (1972): Adatok Sopron és környéke Siphonaptera-faunájához. - Parasit. Hung., ji. 329-348. Received: 17 April, 1977 Dr. RYBA, J. Institute of Parasitology, Czechoslovak Academy of Sciences, CS- Praha 6, Flemingovo n. 2.
