The present invention relates to a distribution system for distributing an olfactory attractant that stimulates ovipositioning of insects, comprising a central receptacle such as a container for holding an olfactory attractant and/or for holding a source of olfactory attractant, a delivery system comprising tubes, pipes and/or ducts, said tubes, pipes and/or ducts coupled to the receptacle and ending at locations where ovipositioning is desired, for delivering a liquid or gas from the receptacle such as a container to said locations, and a driver system for moving the attractant through the delivery system from the receptacle such as a container to said locations. The invention also relates to a method for stimulating ovipositioning of insects, such as black soldier flies, comprising delivering olfactory attractant from a receptacle such as a container to multiple ovipositioning areas via a driver system, said ovipositioning areas preferably located in a cage for insects.