There are arguably only 2 dry fly patterns you need to be successful and the Stimulator is one of them. Randall Kaufmann created one of the best known attractor patterns we know of. A stonefly, terrestrial, moth…regardless, it gets eaten all day long. Add some rubber legs to that and you have an even more buggy version.Tied in sizes 8 to 18
It is recognized as the creation of Randall Kaufmann, a commercial tier who popularized it in the early 1980s. But many credit the original design to Jim Slattery, who first called it his Fluttering Stonefly and then later renamed it the Stimulator. It is also closely related to another fly, the Sofa Pillow, that Pat Barnes developed in the 1940s.
The Stimulator is commonly thought of as an attractor, or searching pattern, because it can resemble many things while imitating nothing in particular. And the fish go for it.
In large sizes and dressed with a salmon-orange body, it can be used to resemble the large black stonefly, also known as the giant salmon fly. In smaller sizes and colors, it is frequently chosen to suggest yellow stoneflies, small yellow sallies, little brown stoneflies and olive sallies. It can also work as a caddis fly. And if that isn’t enough, you can tie it stoutly and even add rubber legs to fish it as a hopper, cicada or beetle.
With all of its built-in flotation, the “Stimi” rides high and is easy to see. That’s a huge plus for those of us who are visually challenged. It works great as an indicator in front of another dry, an emerger or even a nymph dropper.