The invention applies to an insect trap with a planar or curved, light-colored outflow surface for generating a weak airflow emanating from the outflow surface, with a device for holding, trapping, and/or killing the attracted insects, wherein at least one dark contrast spot is formed on the outflow surface. According to the invention, at least one device for increasing the attraction effect of the insect trap is arranged on the light-colored outflow surface, which device has a dark, sharp, in particular straight edge and/or corner and/or a dark, planar surface arranged at least largely vertically on the outflow surface.
