Description
The "Black Martinez" is a classic nymph pattern with a dark, simple design that has proven to be highly effective. It was designed by Don Martinez in the 1930s and is a staple in many fly boxes, particularly for its success with rainbow trout.
Type of Fly: Nymph. This fly is designed to imitate the larval and nymph stages of aquatic insects.
Target Fish: Primarily rainbow trout and brown trout, but also effective for other freshwater species like grayling. It is especially well-regarded as a "killer nymph" for stocked trout in "put and take" waters.
When to Fish: This is a versatile fly that works year-round. It is particularly popular and effective during the cooler seasons, such as spring and autumn, when fish are actively feeding on sub-surface prey. It can be fished successfully at any time of day.
Saltwater or Freshwater: This is a freshwater fly.
Best Fishing Locations: The "Black Martinez" is best fished in still waters like lakes and ponds, particularly in "put and take" fisheries. It is also a very reliable pattern for rivers and streams. It can be fished effectively in various water conditions.
Other valuable information: The fly's simple but distinct profile, often with a dark body and a hint of flash from a copper or silver ribbing, makes it a reliable imitation of many different aquatic insects. It is most commonly fished using a slow retrieve or a dead drift to mimic the natural movement of a nymph.
Other valuable information: The fly's simple but distinct profile, often with a dark body and a hint of flash from a copper or silver ribbing, makes it a reliable imitation of many different aquatic insects. It is most commonly fished using a slow retrieve or a dead drift to mimic the natural movement of a nymph.

