S. Mahunka szerk.: Folia Entomologica Hungarica 55. (Budapest, 1994)

rivers very sporadic elsewhere in Europe. Recent data can hardly be found in the literature. The first male and female specimen were found amongst Újhelyi'

s undetermined material which was donated to the Janus Pannonius Museum in 1985. In 1993 we proved that the species had not died out from Hungary but it occurs in NE Hungary and is not a rarity there. The specimens were collected along different types of waters: larger river (Tisza), small and slow streams (Batár, Old Túr) and standing water (Gőgő-Szenke). These waters of NE Hungary have very diverse Trichoptera community, e.g. along the stream Old Túr 32 species were captured by light during only one night, and the community of other waters are also diverse. Apatania muliebris McLachlan, 1866. Kám, Jeli Arborétum, May 31, 1991 1 Ç , May 24, 1992 2 ÇÇ , leg. Á. Uherkovich (Figs 9-11). Only females are known of this rather variable species. Several subspecies and species were described during the past decades, our specimens belong to ssp. helvetica Schmid, 1954. Its taxonomic position was surveyed by Barnard and O'Connor (1987). It was pointed out that several variations and species belong to the species A. muliebris McL. It lives in cool, spring-fed streams. The closest localities are in Tyrol (Austria, see Malicky 1975, 1989) and in Switzerland (Malicky 1990). Its Hungarian site is very characteristic: all the three females were taken at a spring of the Jeli Arborétum, nearby Kám, West Hungary. This spring-system situated at the northern foot of a thick pebble-layer is unpolluted and contains very few soluted ions, having permanent temperature. Other interesting and rare species were found here, e.g. Ptilocolepus granulatus Pict. and Adicella filicornis Pict. Micropterna caesareica Schmid, 1959. Budakeszi, Oct. 24, 1964 1 6, Tompa, Sept. 6, 1964 1 6, Tompa, Oct. 12, 1964 1 Ç ; all specimens from light traps (Figs 12-17). In the course of the revision of Újhelyi'

s collection these three specimens were found. M. ceasareica is a common species in Southeastern Europe and Asia Minor, several specimens have been elaborated by us collected by lepidopterologists (Dr B. Herczig, Dr L. Ronkay, Mr Cs. Szabóky, Dr Z. Mészáros and others). All Micropterna and Stenophylax are very mobile species. They fly several hundred kilometres to find advantageous places to aestivate. It seems, some specimens reached Hungary in the summer of 1964. This species is probably not a permanent member of the Hungarian Trichoptera fauna. Ceraclea nigronervosa Retzius, 1783. Cikolasziget (Dunasziget), Duna, May 24, 1992 1 6 , Kimle, Mosoni-Duna, May 25, 1992 1 Ç , Dunaszeg, Mosoni-Duna, May 26, 1992 1 6, May 14, 1993 11 66 9 (leg. Á. Uherkovich); Halászi, May 13-15 and May 16-18, 1993 6 66, light trap. (Figs 18-24). Its is a widely distributed Holarctic species. In Central Europe only few sites are known, e.g. Malicky (1989) reported it from two localities from Austria. Botosaneanu and Malicky (1978) mentioned it as a species of standing waters and large rivers of lowlands. The bulk of the specimens were collected along the branches Mosoni-Duna, only one was at the Danube. It is very likely that the species will become extinct soon in consequence of the diversion of Danube (GabcikovoBős hydroelectric power plant). NEW DATA OF SOME RARE CADDISFLIES Rhyacophila dorsalis Curtis. Only few specimens were collected in some sites, in West Hungary (Kőszeg Mts.: Kőszeg and Velem). During the years 1991 and 1993 it was