In just one month, LaFontaine’s Diving Caddis wet fly is already paying huge dividends

Back in the lonesome, isolated days of the pandemic, I mentioned that I’d never read Gary LaFontaine’s masterwork, Caddisflies. Currentseams subscriber Mayson Neel would have none of that. So he found a used hardcover copy of Caddisflies in fantastic condition (the book is out of print) and had it shipped to me. I started reading it, was intrigued, but like so many other projects, finishing it just fell by the wayside.

Cut to this winter, where I cracked it open, found my trusty yellow highlighter, and started anew. I’m happy I did, because I can tell you that what I’ve learned has resulted in dozens of trout caught, for both me and my clients.

I have so much to share about Caddisflies — I really can’t believe I ignored this book for so long — but I’d like to start with LaFontaine’s Diving Caddis wet fly. The female of many caddis species dive to the streamed to lay their eggs, encased in a gleaming bubble. LaFontaine writes, “Both the brightness and the action of the diving female are enough to make a wet fly imitation necessary…(the fly’s) pure Antron filaments, hanging free over the back, reflect more light.” He goes on to list four primary patterns, plus eleven secondary ones. I was dumbfounded to see that there isn’t a tan caddis pattern in the group; the closest we get is a tan/pale green version. So I made up my own tan diving caddis variant:

LaFontaine Tan Diving Caddis (Steve Culton variant) Hook: Standard wet fly size 14-20; Thread: Tan UNI 6/0; Body: Tan Caddis LifeCycle dubbing, small gold wire rib; Underwing: brown partridge feather fibers; Overwing: 20-30 tan sparkle yarn filaments; Hackle: One turn brown rooster hackle

Tying notes: LaFontaine specified the Mustard 7957-B hook; I went with my standard issue heavy wet fly hook, the TMC 3769, size 14. He doesn’t include a rib, but I like the segmented look it creates. While he specifies Sparkle yarn for the body, the LifeCycle dubbing makes a fine stand-in with its blend of natural and synthetic fibers. I plan on trying a few without the rib, and using the sparkle yarn, chopped up, to create a rougher, buggier body. I found it curious that he chose stiff rooster hackle, but LaFontaine explains that the fibers “Stand out from the body and add vibrancy to the moving wet fly.” Many of the photos I’ve seen of other ties feature a collar using several turns of hackle, but LaFontaine is adamant that the collar be kept sparse.

Although I’ve only been fishing this fly for a month, I’ve had several outings where it was the only fly on the team of three that was getting eaten…or the fish chose it by a wide margin over the other patterns.

LaFontaine Diving Caddis Wet Fly Rogues’ Gallery

Farmington River, May 30, 2023