Somogyi Múzeumok Közleményei 13. (1998)

Ábrahám Levente: Tanulmány a hazai vízi életmódú recésszárnyú faunáról (Neuroptera: Osmylidae, Sisyridae)

270 ÁBRAHÁM LEVENTE 12, 1993 1С* 39 It, Sept. 12, 1993 19 UÁ, Sept. 15, 1993 10* 29 It, Nagytétény Aug. 11, 1961 10* It, Panyola Öreg-Túr June 19, 1995 ЗО" NS. - UÁ, Patosfa July 29, 1986 19 UÁ, Piliscsaba Aug. 1, 1990 l9 It, Sarkad Malom valley June 5, 1989 НО" б9 It, Aug. 4, 1991 30* It, June 21, 1992 l9 It, July 22, 1992 ЗО" 79 It, Sept. 20, 1992 ЗО* s9 It, Aug. 30, 1994 10

я It, Szegilong Aug. 5, 1993 10* GyP, Szentborbás July 5, 1989 19 It, Aug. 23, 1989 10" 39 It, Tihany Sajkod June 15, 1990 19 It, Aug. 2, 1990 19 it, Tiszabecs Kút June 20, 1993 20" l9 UÁ, Tiszakeszi June 22, 1993 20" UÁ, Túristvándi Öreg-Túr June 23, 1993 10

я UÁ, Aug. 5, 1994 70

я 49 It, Aug. 6, 1994 10

я It, Aug. 7, 1994 1С" 29 It, Aug. 9, 1994 29 It, Aug. 10, 1994 20" It, Aug. 11, 1994 10" It, Sept. 1, 1994 l9 It, Sept. 4, 1994 10" It, Sept. 9, 1994 10* It, Uszka Batár stream June 21, 1993 20" UÁ, June 21, 1993 10* UÁ. - Vass I, Vejti Dráva river May 17, 1993 l9 NS. - UÁ, Nov. 7, 1993 10" UÁ, Vízvár Dráva river July 2, 1992 l9 It, Aug. 2, 1992 10

я l9 It, Aug. 9, 1992 10" It, Aug. 18, 1992 10" It, June 8, 1993 1СГ 29 UÁ, July 16, 1993 l9 NS, July 18, 1995 10

я ÁL, Sisyra jutlandica Esben Petersen, 1915 Megyer Aug. 20, 1988 l9 UÁ, Nagybajcs July ? 1995 1 exx. sticky plate, Rajka dikereev's house Aug. 27, 1994 1 exx. UÁ, Results and discussion In the course of revision, six museological collections of the Hungarian osmylid and sisyrid flies were redetermined. Besides, data collected from all papers published on the Hungarian Neuroptera fauna were summarised, as well. I found that the Hungarian freshwater Neuroptera fauna has one species belonging to Osmylidae and three species belonging to Sisyridae. Although we can find data about them in several papers (STEINMANN 1967, SZIRÁKI et al. 1992), but Sisyra dalii McLachlan, 1866 has not come up in the Hungarian fauna yet. This specimen had been identified wrongly and was actually Psectra diptera (Burmeister, 1839) (Tarhos July 13, 1959 light trap) in coll.: HNHM. ASPÖCK et. al. (1980) did not mention this species in Hungary in their European faunawork. However, ELLIOT (1996) mentioned it with positive record in east Balkans without citing paper, but I have not found its reference. This species occurs mainly in north-west Europe. Collecting site closest to Hungary is at Polstejn (Czech Republic), where it was caught in 1958 (ZELENY 1961 ). Our knowledge of its habitat and distribution is poor (KILLINGTON 1936-37, ELLIOT 1996). Records for adults suggest that larvae live in fast-floating rivers and streams and near small lakes and canals. Very few specimens have been recently recorded in the northwestern parts of Europe, especially in Germany and Great Britain. Osmylus fulvicephalus (Scopoli, 1763) It is a holomediterranean faunaelement. Developing near water it has three larval stages from which probably the second or third instar is overwintering (ASPÖCK et al 1980). Pupation lasts for about two weeks. Adults can be recorded mainly beside shady streams. Fig. 1. shows the distribution of the species in Hungary. It can be concluded that Osmylus fulvicephalus is definitely spread in mountainous and hilly areas in Hungary but it is missing from the plain territories, such as the Great Hungarian Plain, the Little Hungarian Plain (Kisalföld) and the intensively studied Inner Somogy as well. Although it occurs in the hilly area of the Zselic, Vas and Zala hilly areas where the average altitude is below 350 m. According to the collecting sites its habitat is close to running water, limnokren springs and their surroundings, mountainous streams (lower courses) and brooks, rivulets where banks are shaded by the overhanging vegetation causing colder microclimatological effect than the open banks. It is an univoltin species. Seasonal activity graph of the adults is shown in Fig. 2. It is a sensitive species as to its habitat changes. The metapopulation can be heavily decreased by cutting trees down along the banks. Fortunately, habitat destruction does not occur very frequently, land and water pollution are not characteristic which is not suited for agriculture. This species has not been protected in Hungary yet. Sisyra fuscata (Fabricius, 1799) It is widely distributed in the Holartic area. It can be found in almost all European countries except for the Mediterranean region. Sisyridae in Hungary are characterised by being spread only in the flat areas. As Fig.: 4. shows the distribution area of Sisyra fuscata can be found along the large running rivers (lower courses) and different types of stagnant water. Its larvae is parasitic, their hosts are Ephydia fluviatilis, Spongilla lacustris and other sponges and bryozoans hosts (WEISSMAIR 1994a). Their habitats are different types of canals, dykes and ditches, rivulets, rivers and stagnant water, moor, marches and fens, lakes, ponds. Although it is considered to be a bivoltin species, this can not be proved by the data shown in the activity graph. The scale of water pollution is not known, either, so it is not yet clear how this species can cope with it. Sisyra terminális Curtis, 1854 It is a polycentric extramediterranean faunaelement. This species has a life history and way of life similar to Sisyra fuscata. Studying its life cycle and duration of larval stage, WEISSMAIR (1994b) found that it depended on water temperature and host conditions. ÚJHELYI (1978) recorded this species for the first time at Agárd near Lake Velence in Hungary, although the first specimen had been collected in 1961 but it was misidentified as Sisyra fuscata. In Hungary it can also be found along large rivers and lakes, though it has not been col-