A Veszprém Megyei Múzeumok Közleményei 12. (Veszprém, 1973)

Dr. Tóth Sándor: A negyedik Bakony-kutató ankét (Zirc, 1972. szept. 26–27.)

ramme of "The Nature Landscape of the Bakony Mts." the zoological research has much advanced in this region. In analyzing the result achieved so far, the author established that 73 colouring elements occur in the Bakony Mts. (or as it is known as a zoogeographical region in the Bakonyicum) on the basis of the above, the region is further subdivided into five parts: 1. Balaton upland, 2. Keszthely Mts., 3. South Bakony Mts., 4. North Bakony Mts., 5. East Bakony Mts. Dr. Lajos Jugovics: The basaltic areas in the Bakony Mts. and in the environs of Lake Balaton. In the Transdanubian Central Mts. the occurrence of the basalt and basaltic tuff uniformly developed at the end of the Pliocene due to volcanic activity. The Transdanubian basaltic areas are divided into the following groups: I. The occurrence of the basalt and basaltic tuff in the South Bakony Mts. (14 eruption centres). II. The occurrence of the basalt and basaltic tuff in the Balaton upland including the basalt mountains of the Tapolca Basin (30 eruption centres). III. The basaltic ridges and covers of the Tátika group (16 eruption centres). IV. The occurrence of basalt and basaltic tuff on the Little Plain as far as river Rába (10 eruption centres). Dr. Tibor Kecskeméti: The phylogenesis of the Nummulites fauna of the Bakony Mts. The Nummulites fauna numbering some 60 species and subspecies of the Bakony Mts. is one of the richest and most interesting one in Europe. The Eocene deposit series from the middle of the Lower Eocene up to the Oligocène is extremely suitable for phylogenetical studies. In studying the species of the subsequent faunae in continuous profilesm, certain characters dispay a definite tendency in the mode of their changing, e. g. there is a tendency from the smaller forms to the larger. Certain parallel occurring evolutionary tendencies indicate a polyphyletic evolution of the Bakony Nummulites fauna. Ernő Horváth: The fossilic plants of the Bakony Mts. (The history of fossilic plant research in the Bakony Mts.) The author discusses the results including his own obtained within the programme of "The Nature Landscape of the Bakony Mts." It is primarily the author's merit that we know silicified wood remains from 60 sites in the Bakony Mts. The elaboration of this big material makes it possible to give a more exact floristic picture of the reigon. A list of the most important localities is given, then appreciative words are said about the research workers of the area. Dr. Klára Verseghy: Lichenological research in the Bakony Mts. A regular analytical work was started in 1963 within the programme of "The Nature Landscape of the Bakony Mts." She made a comprehensive study of all the regions of the Bakony Mts. The development of lichen vegetation and the distribution of the species are governed by two major factors: the substrate and the climate. She concludes with regard to distribution : in the Balaton upland, Tapolca Basin and in the East Bakony Mts. numerous sub Mediterranean, Mediterranean and continental elements found shelter. In the North Bakony Mts., on the other hand, the Atlantic (Oceanic) and montane

—boreal species are more frequent. István Rácz: Faunistical conclusions drawn from the investigations of the Orthoptera fauna of the Bakony Mts. The author elaborated the Orthoptera material of the Bakony Natural History Museum, Zirc. The 68 soecies are comprising 15 faunal elements. The Eurosiberian and Holopalaearctic elements yilded the highest percentage. Thus, they give the bases of the fauna. The southern, south-east European colouring elements comprise a small ratio only. László Tóth: On the investigations of the beetle fauna of the Bakony Mts. The author began working on the Coleoptera fauna of the Bakony Mts. in 1962. As a result of extensive collectings some 20 000 beetles are now housed in the collection of the Bakony Natural History Museum, Zirc. So far, he identified the representatives of the following families: Carabidae, Elateridae, Malacodermata, Chrysomelidae and Cerambicidae. Numerous interesting species have come forth which proved to be useful data even to the whole of the Carpathian Basin. In the future, he plans to apply some special collecting methods in order to enlarge the collection. Gyula Dietzel: Some of the more important faunistical results obtained in Lepidoptera in the last decade in the area enclosed by Márkó—Szentgál—Csehbánya— Hárskút in the Bakony Mts. The author began his research in 1962. In the past 10 years he has found 617 species to occur in the region, among them many colouring elements. Dr. László Rézbányai: Letter to the participants of the meeting organized by the Bakony Natural History Museum, Zirc. The author spends most of his time abroad, thus, he could not attend the sessions of the meeting. His letter gives an idea of his research completed and his plans for the future. In 1967 he began his work with the erection of light-traps in the North Bakony Mts. In thepast five and a half years, he collected 778 macrolepidoptera species (114 diurnal and 664 nocturnal) approximating some 90 000 specimens. His light-traps function from early spring till late autum. With his three-year plan he so far collected at Fenyőfő, Somhegy, Ráktanya and at the Zirc Arboretum. Among the many interesting (mainly montane) species his important result was the establishment of the occurrence of two species new to the fauna of Hungary (Mythimna unipuncta, Euphyia scripturata). Dr. Jenő Papp: On the Braconidae fauna of the Bakony Mts. From 1957 till 1969 the author was a museologist at the Bakony Museum, Veszprém, during this period he collected some 5600 specimens of Braconidae. On the basis of this imposing material he made his first monographic treatment of the group representen in the Bakony Mts. The work yielded 47 species new to the fauna of Hungary, including some new to science. Dr. István Pintér: The present state of the Gastropoda investigation in the Bakony Mts. The Mollusca research of the Bakony Mts. began in 1949. The best collected areas are the Keszthely Mts., Tapolca Basin and the Balaton upland. Out of the 210 Hungarian species up to now 130 have been shown to occur (among them many rarities) in the Bakony Mts. Dr. Miklós Marián and Orsolya Marián: Herpetological investigations in the Bakony Mts. This research was started some ten years ago. Besides the sporadic literature data, a comprehensive work on the fauna Qf the North Bakony Mts. appeared in 1969. Brief survey is given on the basis of their research (Bakony piedmont, North and South Bakony Mts.) on the herpetological conditions of the region. The species which have come forward prove the montane character of the North Bakony Mts. The Bakony piedmont zoogeographically is more like the Little Plain. Research is continued on the areas unstudied so far. Attila Bankovics

: Scientific investigations of the vertebrate fauna of the Bakony Mts. No comprehensive work appeared so far on the fish fauna of the Bakony Mts. Sporadic data may be found on various brooks transporting their water to the Lake Balaton. The author has in mind to elaborate the fisch species of the Bakony Mts. His observations on the bird fauna of the region is significant (Keszthely Mts., Tapolca Basin, Balaton upland and the East Bakony Mts.). The 41