Vig Károly: Zoological Research in Western Hungary. A history (Szombathely, 2003)

Phylum Arthropoda 83 faunistic studies have looked at the crustacean species in Fertő in relation to the chemical consistency of the water (METZ and FORRÓ 1989 and 1991) and the Ostracoda, Cladocera and Copepoda species found there (VESZPRÉMI 1976; HERZIG 1979; LÖFFLER 1979; PONYI and DÉVAI 1977 and 1979; FORRÓ and METZ 1987; FORRÓ 1990 and 1992). Seventy-seven microcrustacean species (3 7 Cladocera, 20 Ostracoda, 20 Copepoda) were recorded from the various habitats of the small, shallow Lake Fehér in the Fertő-Hanság National Park between 1998 and 2001. The fauna of the reed belt and open water differed significantly, only 17 species being common to both. In open water, the most frequent species was Diaphanosoma brachyurum. The ostracod Cypridopsis hartwigi, new to Hungary, was recorded only once. It may have been passively introduced from the south, probably by migrating birds. This ostracod is presumably not capable of maintaining a stable population in the Carpathian Basin (Kiss 2000 and 2002). Recent investigations recorded 34 Branchiopoda and 19 Copepoda species in the Hanság. Two species reported in the area

—Lathonura rectirostris and Polyphemus pediculus

—are relatively rare in the country as a whole (FORRÓ 2002 a). Recently, altogether 46 Branchiopoda and 22 Copepoda species have been known in the Fertő-Hanság National Park. Minor faunistic publications also contain some data from other parts of the West Hungarian border region. LAJOS MÉHELY was the first to report isopods (Hyloniscus riparius and Trichoniscus austriacus) (MÉHELY 1927, 1929, 1932a and 1932b) and freshwater hoppers (Niphargus foreli hungaricus and Gammarus fossarum—MÉHELY 193 7) from the Doroszló (Kőszegdoroszló), Velem, Kőszegszerdahely and Kőszeg districts. ADORJÁN KESSELYÁK (193 7) identified 21 species of Isopoda from the 1936-7 collections in the Kőszeg Hills, two of them proving new to the Hungarian fauna. The data from MÉHELY (193 7) and KESSELYÁK (193 7) were included by ENDRE DUDICH (1941a and 1942) and the species list augmented with the records from Ság Hill (Tracheoniscus balticus and Porcellium collicola). The former also gives data from Fertő. LÁSZLÓ FORRÓ and SÁNDOR FARKAS (1998) provides a Hungarian checklist of the woodlouse species (Isopoda: Oniscidae), with synonyms, distribution maps and relevant Hungarian faunistic literature, and repeats occurrence records published earlier. JENŐ KONTSCHÁN, when reporting a Ligidiwn species new to the Hungarian fauna, gave new collection data on the three species in the genus known in Hungary and further locations, following a revision of earlier collections. L. hypnorum was recently found in the Őrség (at Ivánc), while LAJOS MÉHELY found a specimen of L. germanicum near today's Gyöngyösfalu in 1931 (KONTSCHÁN 2002a). Both these species were known earlier to occur in the Kőszeg Hills as well (KESSELYÁK 1937; DUDICH 1942). The occurrence of 13 isopod and 2 amphipod species has been shown in the Fertő-Hanság National Park (KONTSCHÁN 2002C). Armadillium zeneken is very rare in Hungary and the occurrence of Gammarus roselli is interesting, as it usually occurs in Hungary in upland streams.