Abstract: The invention relates to a device (1) for catching insects, comprising an attracting plane (4) for attracting the insects to be caught, comprising an opening (6) which is arranged in the attracting plane and through which the insects can enter the device (1), wherein. the opening is adjoined by a duct (8) which extends into the interior of the device (1), and comprising a ventilation device (12) which generates an air flow passing through the duct (8). According to the invention, the duct (8) is arranged in the interior of a housing (10) and this housing (10) is provided for receiving and holding a liquid medium, wherein the ventilation device (12) is arranged in such a way that it generates an air flow in the direction of the liquid medium provided in the housing (10).