How To Tie a Chernobyl Ant (Step-By-Step With Video)

Fly Tying Expert walks you through every step to show you how to tie a Chernobyl Ant. This guide includes a video and step-by-step instructions with photos.

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The Chernobyl Ant is a great terrestrial pattern to learn to tie. It’s a pattern that can be fished in many different ways. Use it on its own, tie it in a dry and dropper rig, or skate and pop it over the water’s surface. The Chernobyl is a fish magnet.

I first came across the Chernobyl Ant when fishing a secluded high-altitude river in Lesotho. I made use of small Parachute Adams, but due to the deep troughs and fast-moving water of the river, the fish didn’t respond.

A friend passed me one of his self-tied Chernobyl Ants. After inspecting it, with some doubts, I decided to put it on. On the first cast, a fish shot up from the depths and hit the fly. Throughout the week, the Chernobyl pulled fish up. It amazed me how far they would swim for this fly.

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Watch the How To Tie a Chernobyl Ant Video

YouTube video

Quick Look

  • Difficulty Level: Moderate
  • Tying Time: 5 minutes
  • Materials: Hook, thread, chenille (optional), closed-cell foam, rubber legs
  • Hook Size: 8 – 12

What Is a Chernobyl Ant?

The Chernobyl Ant was developed in the early 1990s on Utah’s Green River. It was originally designed to imitate the large black crickets found in the area.

learn to tie a Chernobyl Ant-26

Since then, many variations have been developed, but for the most part, the Chernobyl resembles a large terrestrial insect.

How to Fish a Chernobyl Ant?

The Chernobyl Ant is tied using a considerable amount of foam. The foam gives the fly incredible buoyancy which makes it possible to fish it in many different situations. Here’s a couple of my favorite Chernobyl Ant fishing methods:

Single Dry Fly

The Chernobyl Ant is a great dry fly on its own. Especially when fish are zoned in on terrestrials falling from overhanging trees or streamside vegetation.

Dry Fly Fishing with a buzzer set-up

Cast this fly up close to banks deliberately allowing the fly to make an audible “plonk”. Fish respond to this sound and will often cover a considerable distance to inspect and eat the fly.

Hopper and Dropper

The hopper and dropper is the same as a dry and dropper rig. The top fly is usually a terrestrial imitation, in this case, the Chernobyl Ant. Due to the good buoyancy of the Chernobyl, you can use it in conjunction with relatively heavy nymphs.

The combo is fished as you would do with any dry and dropper rig. Cast upstream and allow to dead drift through likely fish-holding water. The Chernobyl will allow you to make use of this method in rough water.


The Chernobyl can also be cast across a stream or river and allowed to skate over the water’s surface. Whether it’s imitating a small mouse, a large stonefly, or an injured minnow, I’m not sure. I just know it entices incredible reactions from Bass and Trout.

Materials You’ll Need to Tie a Chernobyl Ant

You will need the following materials to tie a Chernobyl Ant:


A long shank light nymph or dry fly hook will work. The Chernobyl Ant is tied in sizes from 8 – 12, but you can definitely tie smaller versions for small streams. The following hooks are good options:


A slightly thicker thread should be selected when working with foam. Thin thread, even when flattened, has the tendency to cut the foam. A thicker thread will prevent this. On Chernobyl Ants I recommend 140 Denier. I even make use of 210 Denier on large flies (as in the step-by-step guide).

fly tying thread

Match the color of the thread to the color of the underbody. Some of my favorite threads for this purpose are:

Chenille (optional)

The chenille is tied on top of the hook shank and creates a foundation for the first foam sheet to be tied on. Without the addition of the chenille, the foam tends to spin around the shank. The chenille can also be used to add a small hotspot on the butt of the fly.

Fly Tying Chenille

Recommended Assorted Chenille & Flashabou:
Croch Fly Tying Materials Kit


I make use of a 2mm foam that I bought from our local craft shop. You can play around with the colors of foam used. Some of my favorite colors to have at hand for Chernobyl Ants include:

  • Tan
  • White
  • Black
  • Green
  • Red
  • Brown

Recommended Foam Sheets:
Houseables Crafts Foam Sheets

Rubber Legs

Barred rubber legs are tied in between the underbody and the top foam layer. You can use medium legs on large flies and the fine version on small flies.

Recommended Fly Tying Legs:
Xfishman Silicon Rubber Legs 12-24 Colors

Hotspot (optional)

The hotspot, or sighter, is tied on the top of the fly to aid sighting in low light conditions.

fly tying Chenille

This optional extra is great when you’re guiding clients. I make use of the following materials:

  • Antron yarn
  • Poly yarn
  • Bright colored foam

Recommended Yarn:
8 Colors/Floating Yarn Bundle


The exposed thread in the underbody’s segments is sealed after the fly is completed. You can make use of any of the following:

  • UV resin
  • Head cement
  • Nail varnish

Recommended Super Glue:
Zap-A-Gap Fly Fishing Adhesive
Sally Hansen Hard as Nails

Tools Needed to Tie a Chernobyl Ant

You’ll need the following tools to tie a Chernobyl Ant:

Let’s Get Started!

How To Tie a Chernobyl Ant

The following section will take you through the steps to tie a Chernobyl Ant. The specific materials I am using are listed in the recipe below for your reference.

Chernobyl Ant Recipe

  • Hook: Mouche 8443 size 8
  • Thread: Danville’s 210D Flatwaxed tan
  • Chenille: Red ultra-chenille
  • Base foam: Hobby shop foam sheet in tan
  • Top foam: Hoppy shop foam sheet in black
  • Legs: Brown and orange barred rubber legs
  • Hotspot: Fluorescent pink Antron yarn
  • Resin: Sally Hansen Hard as Nails

Step 1: Place The Hook in The Vise

Place the chosen hook between the jaws of the vise. The hook shank must be level and the hook point and barb exposed.

Secure the hook by locking the cam lever. Test to make sure that the hook is seated properly to prevent problems later on during the tie.

chernobyl ant fly - step1

Step 2: Attach The Thread To The Hook

Hold the end of the thread in your left hand and place the thread over the hook about ¼-inch behind the hook eye. Wrap forward 5 times then run the thread over itself to lock it in place.

Cut off the excess tag end. Move the thread forward and leave a small gap between the thread and the eye of the hook.

chernobyl ant fly - step2

Step 3: Tie in The Chenille

Cut a 2-inch section of chenille and place it on top of the hook.

Tie it in where you left the thread. Cut off any forward-facing excess.

chernobyl ant fly - step3

Step 4: Cover The Hook Shank With Thread

Keep the chenille tight by pulling rearwards. Run the thread backward to secure the chenille on top of the hook shank.

Stop when you reach the start of the bend. Run the thread forward to where you tied in the chenille.

chernobyl ant fly - step4

Step 5: Cut Off The Chenille

Cut the chenille off leaving a ¼-inch protruding behind the fly. The amount you leave protruding will depend on the size of fly you use, but basically it should look like this photo.

Once you’re happy with the length of the chenille, you can move on to the next step in this tutorial.

chernobyl ant fly - step5

Step 6: Cut Off a Section of Tan Foam

Take the thin tan foam sheet that you found at the hobby store and cut a 2-inch length of foam the same width as the gape of the hook.

You can hold the foam up to the gape in the hook to measure it and get it right.

chernobyl ant fly tying tutorial - step6

Step 7: Tie in The Tan Foam

Place the foam on top of the hook shank with about ¼ inch extending over the front of the hook.

Pinch the foam in place and secure with thread, allowing the foam to fold around the shank.

chernobyl ant fly tying tutorial - step7

Step 8: Form The Segmented Body

The body is divided into 5 – 6 segments. Move the thread backward to the next segment by loosely following a diagonal line to its position. This “jump” should be made right on top of the body to hide it away when the top foam layer is added.

Once you have reached the correct location, make two wraps to form the segment. Proceed all the way until you reach the bend of the hook. You should have 5 or 6 segments.

chernobyl ant fly tying tutorial - step8

Step 9: Tie in The Rear Legs

Cut a long piece of barred rubber legs and fold it in half. Place the mid-point on top of the shank, with the loop created facing forward.

Secure with 2 or 3 wraps. Then position the legs so they are mirrored on either side of the hook.

chernobyl ant fly tying tutorial - step9

Step 10: Cut a Section Of Black Foam

Now take the section of black foam sheet and cut it the same way that you cut the tan section in step 6 of this tutorial.

Again, the foam should be the same width as the gape in the hook and slightly longer than the hook itself.

Step 11: Tie in The Black Foam

Place the black foam on top of the tan body by sliding it through the loop created by the rubber legs. Tie in at the bend of the hook.

chernobyl ant fly tying tutorial - step11

Step 12: Tie in The Hotspot

Cut a 1-inch section of Antron yarn. Tie the mid-point of this section in on top of the black foam.

Once secure, pull the Antron tight and cut to length.

tying chernobyl ant - step12

Step 13: Advance The Thread Forward

Fold the rubber legs and black foam backward. Advance the thread forward the same way that you created the segmented body.

Make sure that the diagonal “jumps” are made on top of the foam. Stop the thread at the original tying in point of the foam.

tying chernobyl ant - step13

Step 14: Tie in The Front Legs

Tie in the second set of rubber legs at this point in the same way as described in step 9, above.

Don’t worry if they aren’t exactly even as you can trim them to size when you’re done tying the rest of the fly.

tying chernobyl ant - step14

Step 15: Secure The Black Foam

Fold the black foam over the body and pull the front end through the loop created by the front legs.

Secure with thread at the same place as the original tying in point of the tan foam.

tying chernobyl ant - step15

Step 16: Tie In Another Hotspot

Tie in an Antron hotspot in the same way as described in step 12, above.

Once the yarn is secured to the hook, cut it to the same length as the first hotspot, about a quarter of an inch above the fly.

tying chernobyl ant - step16

Step 17: Whip Finish The Fly

Fold the tan and black foam backward and bring the thread in front of them. Create a small head for the fly and whip finish. Pull the knot tight and cut off the thread.

If you don’t know how to do a whip finish or you’d like a refresher, check out our guide on how to do a whip finish.

chernobyl ant tying guide - step17

Step 18: Trim The Legs & Body

Trim the rubber legs so that they are equal in length. Cut the tan and black foam so that the front and back are the same lengths.

Then cut a taper into them. I like to taper the butt end of the fly a lot more than the front to give it a more buggy look.

chernobyl ant tying guide - step18

Step 19: Seal The Body

Flip the fly around and seal the exposed thread with your favorite sealant. I am using Hard as Nails in this tutorial, but you can use whatever resin you like and super glue works fine as well.

Sealing the fly in this way will give it a lot more durability and ensure that it lasts a long time, even when being fished a lot.

The Chernobyl Ant

How to tie a chernobyl ant - fly tying tutorial

Now You Know

How To Tie a Chernobyl Ant

This guide showed you guys the basic steps of the Chernobyl Ant. As the development and refinement of the fly were pushed by curiosity, I encourage you to play around with the pattern. Add wings, different legs, antennae, and markings to imitate the hoppers and crickets found in your area.

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Learn How To Tie a Chernobyl Ant A Step-By-Step GuideHow To Tie a Chernobyl Ant Fly

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Pierre is a fly fishing guide and professional photographer who has guided and hosted trips for top fly fishing outfitters. Since being introduced to fly fishing over 21 years ago, he has travelled, fished and guided across the globe. He has extensive knowledge on specific gear and tackle selection for various salt- and freshwater species. Some of his writing work includes blogposts for Alphonse Fishing Company and African Waters.

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