Abstract: An apparatus for collecting insects, kitchen waste, dust or similar waste material, comprising a holding frame (1) in which a collecting bag (4) is received which has a cord (8), such that the bag can be closed by pulling the cord. An opening is provided in the frame, to lead the cord out towards the outside of the frame. The outside of the free edge area of the bag is fastened to the inside of the holding frame by means of at least one fastening device (13, 14), such that the fastening can be detached by pulling together the free edge of the bag while pulling the cord section led out of the same. The invention further relates to a collecting bag (4) which is provided with a cord (8) for pulling together the bag opening and with a fastening device (13, 14) for fastening in the frame (1).