S. Mahunka szerk.: Folia Entomologica Hungarica 59. (Budapest, 1998)

ROVARTANI KÖZLEMÉNYEK LIX 1998 pp. 227-230 Haiwestmen (Opiliones) caught in pitfall traps in the Börzsöny Mountains (N Hungary) R. van der Weele Harvestmen (Opiliones) caught in pitfall traps in the Börzsöny Mountains (N Hungary) Although generally many Opiliones have been recorded from Hungarian hills and mountains, very little has been published about the opilionid fauna of the Börzsöny Mountains. With this article it is my intention to make a contribution to our knowledge of the harvestmen-fauna of Western Hungary in general and of the Börzsöny Mountains in particular. It is based on material from Szendehely offered to me by Dr. L. Papp from the Hungarian Natural History Museum. Dr. L. Papp used pitfall traps with snail carrion (Helix pomatia (L.) and Helix sp.) as bait to collect Diptera in the Keskenybükki-patak valley, below Aranyos-kút-forrás*.The dishes were digged in two to five meters from the creek, while their distance from each other was somewhere between 10 and 20 meters. The collecting itself lasted for 24 or 48 hours. During three years in the end of July and the beginning of August thus a large number of harvestmen was caught. The following eight species were collected. Nemastoma lugubre (Müller, 1776) L. Szalay (1968) splits this species up into two subspecies as had often been done in the past. Since the revision of genus Nemastoma C. L. Koch (s. str.) by J. Grüber and J. Martens we know that we actually deal with a highly variable species. N. lugubre is not rare in Western Hungary, yet it often escapes attention due to its size and habitat. Most specimens I have seen have been caught in pitfall traps as were the two males from Szendehely. Mitostoma chrysomelas (Hermann, 1804) Eight males and eight females were caught in the traps. Though the species do not seem to be very rare, it is only occasionally collected. It is not very demanding concerning its habitat, though avoid monocultures (Martens 1978) Determination is not always easy, because the outlook of the animal is depending on its age and state of development. Therefore M. chrysomelas has a huge number of syn* The collection was supported by the project OTKA T

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