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Hook: TMC 2457 #10-18
Thread: 8/0 UNI Dark Grey
Tail: Ginger Z-Lon
Rib: 4X Monofilament
Shellback: Olive Fly Specks Thinskin
Flashback: Medium Mirage Tinsel
Abdomen: Natures Spirit Emergence dubbing, Caddis Green, or color to match naturals.
Thorax: Brown Ostrich Herl
Pattern Description This neat little caddis larvae pattern comes from the inspired mind of the ubiquitous John Barr. Stealing from a common scud pattern, John has derived this lifelike caddis pattern that really looks like the real thing.
I like to tie this pattern on the skinny side, with a slender abdomen and thorax, to more closely match the naturals I find in Colorado rivers.
The Net Builder imitates a net spinning caddis specifically, but crosses over well for a variety of other caddis species that are free living, as in, no cases. I fish this fly along the bottom of the river in the summer months, as it seems the trout really get on the lookout for them during the warmer months. I like to use this as a searching pattern because I believe fish are always seeing these little bugs along the bottom, and being opportunistic, they can't pass up a tasty bite. Tie up a few Net Builders and keep them in mind this summer. Don't forget to tie a few different color variations too. Chartreuse, olive, tan, amber and cream are all good colors to try. The new pattern of Thinskin, Fly Specks, adds a new element to this fly as well as the addition of the flashback. feel free to substitute materials as need and availability dictate.
