There is nothing quite like the sound of a heavy trout smashing a foam cicada fly pattern on a hot August afternoon. If you've ever been riverside when the buzz of these insects reaches a deafening roar, you know exactly what I'm talking about. It's a chaotic, noisy, and absolutely thrilling time to be an angler. Unlike the delicate sip of a rising fish taking a tiny mayfly, a cicada take is usually violent. It's a dinner bell ringing for every fish in the system, and they don't want to miss out on the protein.
For most of us, the appeal of using a foam cicada fly pattern is pretty simple: it floats like a cork and it's nearly indestructible. You can hurl it into the wind, bounce it off a rock, or drag it through a riffle, and it just keeps coming back for more. In this piece, we're going to dive into why this specific fly belongs in your box and how to make the most of those legendary cicada hatches.
Why Foam is the King of Cicada Season
Back in the day, people used to tie these things out of deer hair. Don't get me wrong, a well-spun deer hair bug looks amazing and has a great profile, but it's a pain in the neck to keep floating. After two or three fish, it's waterlogged and you're spending half your day drying it out or applying more gink.
That's where the foam cicada fly pattern changed the game. Closed-cell foam doesn't absorb water. You can catch twenty fish on the same fly and it will still sit high on the surface. Plus, let's be honest, trout aren't always looking for perfection during a hatch. They are looking for a big, dark silhouette and a lot of surface disturbance. Foam gives you both of those things without the maintenance.
The Durability Factor
I've had days where the fish are so aggressive they actually tear the rubber legs off my flies. If I were using a more delicate material, the fly would be toast. With a foam body, the core of the fly stays intact. Even if it starts looking a little ragged, that often makes it look more like a struggling insect anyway.
Customization and Visibility
Foam also allows you to play with visibility. Cicadas are usually dark—blacks, olives, and deep oranges. Those colors are great for the fish to see from below, but they can be a nightmare for the angler to track on the water, especially in choppy sections. Adding a small strip of hot pink or neon orange foam on the "roof" of the fly makes it pop. You aren't changing the profile the fish sees, but you're saving yourself a lot of squinting.
How to Tie a Simple, Effective Version
You don't need to be a master tier to whip up a foam cicada fly pattern that catches fish. In fact, some of the ugliest versions I've ever tied have been the most successful. The key is getting the proportions right.
- The Hook: Use a stout wide-gap hook. You want something that can handle a big fish and has enough clearance so the foam body doesn't block the hook point.
- The Body: Layered foam is your friend. I usually go with a black base layer and maybe a tan or orange belly.
- The Wings: Some people like organza or specialized wing material. Personally, I think a little bit of white calf tail or even some synthetic flash works wonders. It gives that shimmering look of a vibrating wing.
- The Legs: Rubber legs are non-negotiable. They add movement even when the fly is sitting still.
Don't overthink it. As long as it's big, buggy, and floats, the fish will probably eat it.
The Art of the "Splat"
One mistake a lot of fly fishers make is trying to land their fly as softly as possible. We spend years learning how to lay down a dry fly like a piece of thistledown. Forget all of that when you're fishing a foam cicada fly pattern.
Cicadas are clumsy. They don't land; they crash. When they fall out of a tree and hit the water, they make a distinct plop. That sound is actually a trigger for the trout. It tells them that a massive meal has just hit the surface and is likely stunned.
When you cast, aim a foot or two above the water so the fly hits with some force. Don't be afraid to make a little noise. If you're fishing near overhanging brush or "cicada trees," that splat is often all you need to elicit an immediate strike.
To Twitch or Not to Twitch?
Once the fly is on the water, you have a choice. You can let it dead drift, which is the standard approach, or you can give it some life. If the water is calm and the fish seem hesitant, try a very subtle twitch. Just enough to move those rubber legs and create a tiny ripple.
Often, a cicada will struggle on the surface for a few seconds before becoming still. Mimicking that struggle can be the difference between a fish following your fly and a fish actually committing to the gulp.
Timing Your Trip
While you can technically fish a foam cicada fly pattern anytime you want, they obviously work best during a hatch. Periodical cicadas (the ones that come out every 13 or 17 years) get all the headlines, but there are annual cicadas that show up every single summer.
Typically, you're looking at late July through August, depending on where you live. You want those hot, humid days where the trees are buzzing. That's the peak. If you're lucky enough to be around during a major periodical emergence, the fishing can be borderline ridiculous. It's one of the few times where even the "old, wise" trout lose their minds and start feeding with reckless abandon.
Where to Look
Look for areas with heavy bank vegetation. Cicadas live in trees, so they are most likely to fall into the water where the forest meets the river. Focus on the "seams" near the banks and those deep, slow-moving pools right under overhanging branches.
Gear Considerations
Since you're throwing a wind-resistant, bulky fly, you might want to beef up your gear a little. A 4-weight rod is going to struggle to turn over a large foam cicada fly pattern, especially if there's a breeze. A 5-weight or even a 6-weight is usually the sweet spot.
For your leader, don't go too thin. This isn't the time for 6X tippet. I usually stick with 3X or 4X. The fish aren't usually leader-shy during a cicada hatch, and you'll want that extra strength when a big brown trout tries to take your fly back under a log.
Final Thoughts
The foam cicada fly pattern is a staple for a reason. It's fun to fish, easy to see, and it attracts the kind of fish that usually stay glued to the bottom. There's a certain joy in putting away the tiny nymphs and the microscopic dry flies for a few weeks and just throwing big bugs at the bank.
If you haven't filled a row in your fly box with these yet, now is the time. Even if you don't see a massive swarm of insects, trout have long memories. They know what a cicada is, and they know it tastes like a steak. Give them what they want, make a bit of a mess on the water, and hold on tight. It's going to be a fun summer.