41 e g a thermocouple is preferably located above the catalyst 36 to sense the temperature of the co 2 gas passing through the catalyst and the temperature sensor 41 provides a temperature signal indicative thereof on a line 20 referring again to fig1 the trap system 10 also includes a motor 42 that drives a fan 44 which provides air flow through a screen 46 causing insects to be trapped on an interior side of the screen 46 the controller 12 provides a motor command signal on a line 48 to the motor 42 this command signal commands the motor on and off the motor also drives an impeller 50 located in a flow path of the co 2 gas to facilitate exhausting the co 2 the system may also include an octenol reservoir e g removable and replaceable time release cartridge that releases octenol to create a co 2 and octenol mix the operation of the catalyst 36 and specifically the generation of the co 2 is substantially the same as disclosed in u s pat no 4 519 776 entitled u201c apparatus for attracting insects u201d assigned to armatron international incorporated the assignee of the present invention and incorporated herein by reference however unlike the device disclosed in u s pat no 4 519 776 the insect lure and trap system of the present invention includes an automatic control system that monitors various sensors and automatically controls the flow of fuel to ensure the system operates only when needed fig3 is a schematic illustration of the controller 12 a microcontroller 54 includes executable program instructions to implement the system 39 s various operating.