between the slot such as 110 in the lever 98 and the pivotal mounting of the upper end of each lever to an end of the axle 66 are generally rectilinear this consideration applies equally to the levers 97 and 100 fig1 shows an alternative embodiment of the invention in which the generally rectilinear resilient elastic member consists of an elastomeric rubber band 118 the lower end of which is looped about the axle 66 while the upper end of the rubber band 118 is looped about the pin 56 as mentioned supra the various structural members of the device 20 to the exclusion of the elastic member may be composed of paperboard plastic sheet metal wood or the like it is preferred that these various structural members be composed of white or colored plastic to emphasize cleanliness and for its high visibility one further aspect of the result accomplished by the present invention is pertinent and should be mentioned it is well known that flies such as the common housefly the bluetailed fly and the horsefly exhibit a natural predilection a certain propensity and an unfortunate proclivity to swarm about light on and crawl over deposited dog feces flies are naturally attracted and drawn to deposited dog feces for several reasons inter alia the.