Abstract: Apparatus for killing flying insects serves to propagate an attractant therefrom. An elongate wire-like element mounted for rotation about a point intermediate the ends thereof defines an imaginary plane. A motor rotates the element at a speed sufficient to preclude the flying insects from passing across the plane. The element strikes and kills any such insects deflecting parts of them to smash against a wall surface surrounding and adjacent to the path defined by the tips of the element. The insect parts being smashed against the wall generate a sex attractant therefrom which is carried into the atmosphere by air currents generated by rotation of the element. The insect parts also provide a protein bait. A skirt depends downward from the entrance opening sufficiently so as to intercept parts of insects which ricochet from the sidewall toward the motor.