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Vials of flies are dropped through the cylindrical tube at the top of the apparatus. A ring stand holds this tube in place with a funnel. When the vial hits the bottom of the cylindrical tube flies will be ejected out of the funnel and into the acrylic tube that holds the polycarbonate sheet lined with Tangle-Trap. Flies will land along the tube and stick to their landing spot due to the Tangle-Trap.
