Howdy,
Western dry fly anglers can celebrate spring with the arrival of Caddis hatches. Sure, there are BWO’s, March Browns, and a variety of stoneflies in the air, but the caddis hatch on some rivers is so prolific that all other bugs seem insignificant. Such is the case here on the North Santiam.
Soon after a few consecutive warm days in April, the little speckled caddis begin to appear. By little, I mean equivalent to a size 14-16 hook. The shoreline is crawling with them. Bump the bushes or wiggle a tree branch and a cloud of them scatter in all directions. A standard Cuttwing Caddis or Double Wing EHC will serve you well.

Caddis Fog
All Caddis varieties have the same basic profile in the air and on the water. Wings extending beyond the body when at rest, fluttering madly while in the air. It’s said that caddis are able to drink and that’s the reason they dip to the water surface so often. Most other bug species (mayflies, stoneflies, etc.) are only on the water surface for 1 of 3 reasons – 1) to allow their wings to dry after emergence, 2) to deposit eggs, 3) when they die and fall there.
Following close on the heals of the the speckled caddis is the bigger tan/grey variety. These bugs are equivalent to a size 10-12 hook. Again, the Double Wing EHC is a good choice, along with the Goddard Caddis (my personal favorite).
In my opinion, choosing a caddis fly imitation is not as critical as choosing mayfly or stonefly patterns. I’ve had sucess with a variety of caddis patterns over the years. Because the hatches overlap, size is not as important and the color just needs to be “close enough”. Right now for example: Both the small speckled and medium sized tan caddis are available to trout. I can choose just about any caddis adult pattern - EHC, Double Wing EHC , Cutwing, Goddard, Trude, etc. – in size 10-16 AND in just about any shade of Grey, Tan or Brown and get a fish to rise to it.
Here on the Santiam, the caddis species hatch throughout the spring, summer and fall months. Starting with the tiny speckled fellas and progressively getting bigger as the season wears on until the grand finale’ of the year brings out the Fall (or October) Caddis – the grandaddy of them all.

October Caddis
For a number of years, these big caddis had me baffled. I’d had OK luck using Stimulators and large Goddard patterns, but never really felt I was getting the most from this hatch. I’ve tied a number of experimental flies, using a variety of materials, but never felt I got it just right. However, this past fall I began collaboration with Yakima river guide Derek “Cutthroat” Young of Emerging Rivers Guide Service. Together we brainstormed on perfecting a pattern to imitate this hatch. I tied up 5 or 6 completely different patterns and sent them up to Derek for testing. He reported back with details of what he liked and didn’t like about each pattern. He also contributed some ideas of his own based on his observations of the bugs over the years. After a couple more “back and forth” shipments and trials, we settled on a pattern and Derek gave it a name – “The Yak Caddis”.
I tied up a dozen of the final versions and shipped them north to Derek. I tied one more and headed for the river. The smell of head cement still lingering on the fly as I tied it to my leader. On the first cast, with only 10 seconds on the water, the pattern was slammed by a pretty little Santaim Native Cutthroat Trout. Better yet, after releasing the fish and giving the fly a shake, it still drifted nicely in the surface film on the next cast. The fly fished very well for me over the next couple days.

The Yak Caddis takes it's first Santiam Fish
Derek’s first experience with the new pattern was even more memorable. I’m a little fuzzy on the details, but will try and relay the story as close as I can.
Derek was taking a 1st time client on a trip down the Yakima River. This fella was primarily a Czech Nymph angler and somewhat new to dry fly fishing. Derek took him to an area of the river with your basic riffle, run, pool configuration to show him the basics of working the water with a dry fly. Derek made his first cast into the seam at the base of the fast water and WHAM! A very nice 18″+ Yakima Cutthroat inhaled the fly. Needless to say, Derek and his Guide Client were both very impressed with the fly and continued to catch fish with it on the rest of the trip.
We had a winner. My quest for the killer October Caddis pattern was over.
I could not have done it without the input, testing and analysis from Derek Young though. Remember, I was kinda stuck for ideas and had been working on it for a couple years – never getting it right. Derek made it happen by bringing fresh ideas to the table. He pushed me to think “outside the box” and try things differently.
Late last fall, we submitted the fly pattern to Orvis (as Co-Developers) for consideration for inclusion in their fly catalogs. The hatch ended, months passed, and we just kind of forgot about it all. Earlier this week I received a message from the head of Product Development at Orvis. He was in Wyoming fishing the Shoshone river and had one of those epic weekends catching 14-18″ western slope cutthroat trout – many of them on our pattern. Obviously the pattern works just as well as an Adult Stonefly imitation as it does as a October Caddis imitation! He also informed me that Orvis would be picking up the pattern for future catalogs.
If you’re still reading along, you’re probably feeling a little ripped off right now. You thought this was going to be some killer insight into fishing with caddis flies and it turned into me bragging about the Yak Caddis. Please accept my apologies, but I’m pretty excited about all this. It’s kind of a big deal for me. A small-time, online fly shop guy having one of his patterns picked up by the giant that is ORVIS. It’s my blog and I’ll brag if I want to…………..
I’m done bragging now and will get back to fishing caddis flies.
In summary, grab your favorite pattern from the fly bin and hit the water. The caddis flies are here and trout are waiting to inhale them. Get a good selection of colors (tan, grey, brown, olive) and sizes (8-16) and you’ll be able to match the hatch throughout the fishing season. On those rare days when nothing is happening on the surface…. don’t give up on the caddis….. just think “under the surface” and tie on a soft hackle, rusty squirrel or hare’s ear nymph. On a river system like the Santiam – caddis are available ALL the time and in all stages of the life cycle – larva, pupa, adult or ovapositor!
Tight Lines!
Dave
P.S. – When next fall rolls around, remember the Yak Caddis – let one fly and hang on!