The BL Buzzer Black Traffic Light is a distinctive and effective fly pattern tied on a Daiichi hook, known for its sharpness and durability. This fly features a black body with a traffic light-colored head, often incorporating red, yellow, or green thread or beads to mimic the segmented appearance of midge pupae. The design is intended to attract trout by mimicking an emerging insect, with the bright "traffic light" colors providing an additional visual trigger. Ideal for still waters or slow-moving rivers, this buzzer pattern is particularly useful when targeting fish feeding just below the surface, where its lifelike profile and subtle color contrasts can entice strikes from wary trout.