Introduction
The TERRO T550 Discreet Odorless Indoor Fly Trap Plus Lure is designed to effectively eliminate flies within your home. This trap utilizes an odorless, food-based lure to attract flies into a decorative housing where they become stuck on a glue board. Its design allows it to blend seamlessly with your home décor, making it suitable for various indoor locations. The dark surface of the glue boards, combined with the trap's patterned housing, helps to conceal trapped insects from view.
Package Contents
Verify that all components are present in your package:
- 2 Trap Housings
- 4 Glue Board Inserts
- 4 Lure Packets
- Adhesive Strips
- Mounting Hardware

Image: All components included in the TERRO T550 Discreet Indoor Fly Trap package.
Setup & Assembly
1. Prepare the Glue Board
- Tear the glue board into two pieces along the perforations.
- Remove the film backing from one piece of the glue board to expose the sticky surface.
- Open one lure packet and sprinkle its contents evenly onto the sticky surface of the exposed glue board.
- Carefully fold the prepared glue board along the remaining perforations.
2. Insert Glue Board into Trap Housing
Insert the folded glue board into the trap housing from the top, ensuring the sticky surface with the lure faces the front openings of the trap.
Video: A detailed guide on how to set up and use the TERRO T550 Discreet Indoor Fly Trap, demonstrating the preparation of the glue board and insertion into the housing.
Placement Options
The TERRO T550 offers versatile placement options to suit your needs.
Freestanding Placement
- Line up the tabs on the back of the two trap housings and snap them together.
- Place the assembled trap freestanding on any flat surface, such as a tabletop or counter, with the open end facing down.
Wall-Mounted Placement
- Remove the non-wall side backing from an adhesive strip and firmly press it onto the flat side of the mounting hardware.
- Remove the wall side backing from the adhesive strip.
- Firmly press the mounting hardware onto the desired wall or window surface with the tabs facing up.
- Wait one hour for the adhesive to set, then hang the trap housing from the mounting hardware.

Image: Illustration of freestanding and wall-mounted placement options for the fly trap.

Image: The TERRO T550 Discreet Indoor Fly Trap positioned on a kitchen counter, demonstrating its discreet appearance.
Operating Instructions
The TERRO T550 fly trap operates by attracting flies with its specialized food-based lure. Once flies enter the trap housing, they come into contact with the sticky glue board and are captured. The discreet design of the trap, featuring a patterned housing and dark glue board, ensures that trapped insects are hidden from view, maintaining the aesthetic of your living space.

Image: How the trap attracts and captures flies.

Image: The discreet design of the fly trap.

Image: The patterned trap housing with high contrast openings to hide insects.
Maintenance
For continuous and effective fly control, regularly inspect the glue board. Once the glue board is full of flies, carefully remove it from the housing and discard it in a waste receptacle. Replace with a new glue board and lure packet as per the setup instructions.

Image: Discard and replace the glue board when full.
Troubleshooting
If the trap is not attracting flies effectively:
- Ensure the lure packet contents were evenly sprinkled on the sticky surface.
- Verify the trap is placed in an area with active fly presence.
- Check if the glue board is expired or has lost its stickiness; replace if necessary.
- Consider relocating the trap to a different area if fly activity is low in the current spot.
For further assistance, please refer to the manufacturer's official website or contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Terro |
| Model Number | T550 |
| Product Dimensions | 4.3"L x 4.12"W x 5.37"H |
| Item Weight | 5.6 Ounces |
| Number of Pieces | 2 (trap housings) |
| Target Species | Fly |
| Power Source | Manual |
| Material | Glue |
Warranty & Support
For information regarding product warranty, returns, or technical support, please visit the official Terro website or contact their customer service department. Keep your purchase receipt for any warranty claims.