Ah, the Invicta—what a classic little killer for trout. That flash of yellow in the water? Pure magic. I’ve lost count of how many fish I’ve pulled in with this pattern, especially on those overcast days when nothing else seems to work.

So, how’s it tied? Well, start with a short or medium shank hook—nothing fancy. The body’s that bright yellow floss or dubbed fur, wrapped nice and slim. Rib it with silver wire or tinsel, just enough to give it that segmented sparkle when the light hits. And don’t forget the tail—just a pinch of yellow fibers to keep things balanced.

But here’s where it gets good: the wing. Gray squirrel tail fibers, paired up, give it that alive look underwater. Trust me, that subtle movement makes all the difference. Then you’ve got the hackle—soft hen, usually red or yellow—wound around the collar. That’s what sells it. Makes the fly pulse like a real bug, legs twitching in the current.

What’s it imitate? Honestly, a bit of everything. That’s the beauty of it. Trout see that yellow body, the wiggly hackle, and they just react. Could be a mayfly, a caddis, or some other snack—doesn’t matter. It’s just irresistible.

And where to fish it? Anywhere, really. Rivers, streams, lakes—you name it. I’ve had luck in slow pools and fast riffles alike. Trout go nuts for it, but don’t be surprised if a grayling or two sneaks in on the action. Just remember: fish it with a bit of swing, let it dance in the current, and hold on tight.