A ceiling system includes a number of longitudinal beams and/or transverse beams to be arranged in longitudinal arrangement and/or transverse arrangement in a building space, a number of ceiling panels to be arranged on the longitudinal and/or transverse beams, and at least one insect catching device, which: a horizontal holder supported by the transverse beams and/or longitudinal beams one or more electrical lamps for emitting ultraviolet light to the surrounding area for the purpose of attracting insects a connecting element for connecting the lamp to the domestic mains supply and a fixing element for fixing insects attracted by the light.
