S. Mahunka szerk.: Folia Entomologica Hungarica 57. (Budapest, 1996)

old stand young stand Fig. 1. Hanging up the tangle traps in the old and young oak wood stands illustrating the position and height of the traps (del. K. Horváth) METHODS The research project lasted for three years during 1992-1994. Expedient for the project the most favourable collecting device was the tangle trap. Non-desiccating glue was smeared on four yellow plates of 110 * 110 cm size each, these were fastened onto 40 x 35 cm sized also yellow plastic plates with an appropriate small roof preventing rainfall. In the old oak wood stands the traps were hanged in the shrub layers at about 2 m height and in the canopy at about 8-10 m height; in the young oak forest stands at about 2.5 m height (Fig. 1).