S. Mahunka szerk.: Folia Entomologica Hungarica 53. (Budapest, 1992)

FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK LUI 1992 p. 165-172 Zoological collectings by the Hungarian Natural History Museum in Korea. 106. A report on the collectings of the Thirteenth Expedition By L. Ronkay and A. Vojnits (Received 4th June, 1992) Zoological collectings by the Hungarian Natural History Museum in Korea, 106. A report on the collectings of the Thirteenth Expedition. - A detailed report on the zoological collectings and the total list of localities are given. The thirteenth expedition of the faunistical research programme, within the framework of the scientific agreement between the Academies of the two countries, was carried out in the period of 21 May-16 June, 1991. We planned to work in the early spring period in the northern and south-eastern mountainous parts of the Democratic People's Republic of Korea and hoped to study the very poorly known but surely rich and diverse - lepidopteran fauna of the middle and high montane forests in the spring aspects. Due to some problems in the organization of the expedition, our trip began on 20th May and we arrived to Pyongyang - via Moscow - on the next day. In spite of the troubles in the arrangement of the expedition, our original programme has only changed in one point, namely, the trip to the highest ranges of the northern mountain region of the Mts Paekdu-san has been cancelled because of road reconstructions. Instead of this trip we had the opportunity to visit the easternmost, lower parts of this massif, the vicinity of Chondjin; places where zoological collecting has never been made. Besides this area we worked in the Mts Myohyang-san and Kumgang-san at medium high altitudes and also in the vicinity of Pyongyang in rather disturbed rocky forests of the hills surrounding the capital. The primary aim of our collectings was the investigation of the nocturnal Lepidoptera fauna, therefore, we concentrated to night collectings. Besides the regular use of mercury vapour lamps at/around the hotels - this was the general method for night collecting during the previous expeditions -, we worked in every place with Tungsram HMLI 160 W mixed lamp supplied from a Honda generator, and, first time for the expedition series, a portable light-trap with 6 W UV-tube was also used in the majority of the nights. Therefore, in several occasions we could take material from three different places (three different habitats) in one night; the effectivity of the collectings - both the quantity of the material and the species richness - increased significantly with this method.