Dr. Steinmann Henrik szerk.: Folia Entomologica Hungarica 23/1-12. (Budapest, 1970)

area of the shore. The insects are driven out of the soil by the first splashes, and washed down by the subsequent ones to the open water surface. Prom there the material, mixed with litter and foam, is skimmed off with a water net. The dripping material must be placed temporarily in a Moczarsky-Winkler selector before transportation. Netted collections The vegetation of meadows, grasslands and shrublands, the sides of roads and forest paths cam be netted. The net used was a 2 ft long linen sack of strong material,fixed on a strong metal frame of little more than 1 ft diameter. Beaten collections The method is applied for collecting from the foliage or dry branches of woody plants, where the collecting net is not applicable. Por the purpose, a large linen sheet can be kept under the beaten branches, but in this case 2 or 3 people are required for a continuous and quick operation. When collecting alone, a large funnel of strong linen has been used with a narrow sack process in the centre, to hinder the escape of insects. The funnel is fixed on a 3 ft diameter,collapsible metal frame (Winkler beating funnel). Air plancton collection The best material can be collected if a large plancton net is fixed into the roof of a slowly moving car. After some experiments, the 3 by 1 ft roof net has been replaced by a much smaller one to reduce the usually enormous quantity of collected material. The captured insects remain intact up to a speed of 25 m. p. h. (40 km. p.h.). The density of flying insects starts to increase rapidly shortly before sunset. The aspect of the material changes profoundly with the onset of darknes, and becomes similar to the material of a light trap. The most valuable fraction of the air plancton collections is captured from half an hour before sunset and during the short period of twilight.