“The fly catcher is an electronic fly-swatting device based on the idea of the Venus fly trap. The Fly Catcher is not just a talking point, it actually catches flies. Each unit comes with a packet of bait. The bait attracts the fly, which crosses two sensors as it walks down the surface of the jaws. These sensors activate the jaws which then snap shut, killing the fly humanely.”
Source: Eurocosm