Janus Pannonius Múzeum Évkönyve 30-31 (1985-1986) (Pécs, 1987)

Természettudományok - Nógrádi, U. Sára: Caddisflies of the Eastern Mecsek Mountains, Hungary (Trichoptera), I.

CADDISFLIES OF THE EASTERN MECSEK MTS. 19 Table 2. Vékény, Spring ,,Iharos-kút". Night capturings in 1983 2. táblázat. Vékény, Iharos-kút. Az 1983. évi lámpázások oV $ $ total p.c. Rhyacophila fasciata Rhyacophila tristis Synagapetus krawanyi Synagapetus mosely Philopotamus variegatus Wormaldia occipitalis Hydropsyche contubernalis Hydropsyche saxonica (Hydropsyche spp. indet.) Plectrocnemia brevis Plectrocnemia conspersa Polycentropus irroratus Tinodes unicolor Lype reducta Phryganea grandis Limnephilus auricula Limnephilus flavicornis Limnephilus hirsutus Liminephilus ignavus Limnephilus lunatus Limnephilus rhombicus Grammotaulius nigropunctatus Potamophylax luctuosus Potamophylax nigricornis Stenophylax meridiorientalis Stenophylax permistus Chaetopteryx major Silo pallipes Crunoecia irrorata total 535 858 1393 100.00 but they do not occur in the other regions of South Transdanubia (perhaps lack of advantageous biotopes). Such species are Rhyacophila tristis, Wormaldia occipitalis, Philopotamus variegatus, Plectrocnemia brevis, Potamophylax nigricornis, Micropterna sequax and Crunoecia irrorata. On the basis of ecological demand it can be established that most species are inhabitans of streams or springs, and it is obvious, since stagnant water can hardly be found on this area. Only two small groups of ponds were found. One of them is in the Valley of stream „Völgységi-patak", the other near Óbánya. The latter are fish ponds fed by the stream running in the Valley of Óbánya. The Óbánya collections were carried out at these pounds, therefore, some species of stagnant water were proved here (Ceraclea alboguttata, C. dissimilis, Oecetis ochracea, Setodes punctatus, Leptocerus tineiformis, Agraylea sexmaculata, Limnephilus extricatus). Further caddisflies of stagnant waters were collected at other localities because of their mobility, e. g. Agrypnia varia, Phryganea grandis and Holocentropus picicornis. It can be supposed that the basins behind of calcareous tufa weirs are suitable for the development of certain species of stagnant waters. On 21st May 1983 a very newly hatched female of Phryganea grandis was collected along the chains of limestone tufa weirs near the Pásztor Spring at Kisújbánya. Several specimens of Limnephilus flavicornis were caught just here. Some species live in the slowly running branches of the streams. Thus Halesus tesselatus, Potamophylax rotundipennis and Anabolia furcata were captured only by the light trap of Kárász. The quantity of these species was rather large. Halesus tesselatus is the most frequent species of the material from this trap with its 556 specimens (40.27%). Along the quicker branches of streams other species becomes dominant: Tinodes unicolor reached 62.82% at Spring „Iharos-kút". Rhyacophila fasciata is very frequent all over the Eastern Mecsek Mountains. Some other species can reach 5 to 20%, e. g. Plectrocnemia conspersa, Wormaldia occipitalis, Potamophylax nigricornis, Chaetopteryx major and Hydropsyche saxonica. Summary On the area of the Eastern Mecsek Mountains landscape protection area 64 Trichoptera species were proved from a material numbering more than 4,000 specimens. 3 taxa proved to be new for the Hungarian fauna (Synagapetus krawanyi Ulm., Potamophylax luctuosus Pill, et Mitt, and Chaetopteryx schmidi mecsekensis Nógrádi), while others new in the fauna of South Transdanubia. The detailed list of material is given. The most frequent species developing in streams, can reach a frequency from 5 up to 40 %. The examination of this area will be continued in the next years and it is supposed that further species will be collected. It is hoped that the results of new examinations will be published in the next few years. LITERATURE Botosäneanu, L. — Malicky, H. (1978): Trichoptera (in lilies, J. Limnofauna Europaea, p. 333 — 359). — Stuttgart and New York. Lovász, Gy.— Wein, Gy. (1974): Délkelet-Dunántúl geológiája és felszínfejlődése. — Pécs, p. 1—215. Malicky, H. (1984): The distribution of Hydropsyche guttata Pictet and H. bulgaromanorum Malicky (Trichoptera: Hydropsychidae), with notes on their bionomics. — Entomologist's Gazette 35: 257-264. Nógrádi, S. (1984a): The caddisfly fauna of the Valley Nagymély-völgy, Mecsek Mountains, Hungary (Trichoptera). — A Janus Pannonius Múz. Évk. 28 (1983): 15-22. Nógrádi, S. (1984b): Six caddisfly species new in the Hungarian fauna (Trichoptera). — Folia ent. hung. 45 (1): 159— 165. Nógrádi, S. (1985a): Caddisflies of the Bares Juniper Woodland, Hungary (Trichoptera). — Dunántúli Dolg. Term, tud. sor 5: 117-134. Nógrádi, S. (1985b) : Further caddisfly species new in the Hungarian fauna (Trichoptera). — Folia ent. hung. 46 (1): 129-135. Nógrádi, S.—

Újhelyi, S,— Uherkovich,Á. (1985): Fundamental faunistic data on caddisflies (Trichoptera) of South Transdanubia, Hungary. — A Janus Pannonius Múz. Évk. 29 (1984): 37-48. Újhelyi, S. (1971): Adatok a Leptoceridae (Trichoptera) család tagjainak magyarországi elterjedéséhez. Data to the Distribution of Leptoceridae (Trichoptera) Species in Hungary. - Folia ent. hung. 24: 119-137.