Diptera attracting device (1) comprising a container (2) with an opening that can be closed by a sealable means (3), characterized in that the container (2) and the sealable medium (3) are each made up of a polymeric material and, because the container (2) houses at least one diptera attracting substance capable of diffusing through the polymeric material of the container (2). (Machine-translation by Google Translate, not legally binding)