Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin

Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

A small, old rock wing dam has created an excellent riffle and pool in this classic trout stream.

Stream photos

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Psychodidae True Fly Larva Psychodidae True Fly Larva

Lateral view of a Psychodidae True Fly Larva from Mystery Creek #308 in Washington

This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.

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27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Deep water trout and insects.

Crooketarow
Posts: 2

Crooketarow on Jul 7, 2009July 7th, 2009, 5:34 am EDT

I have deep qurrays that have alot of 5 to 8 pound rainbows in it.I've fished them quite a few times with flys no strikes but each time see rings and big swirles.But do'nt see any hatching insects.Any help please.I do know of only a few taken 5 to 8 pounders taken on only worms.This has been diiving me crazy for the last few years.I've almost converted back to bait fishing a few times (HELP PLEASE)

Mike56
Wyoming

Posts: 3

Mike56 on Jul 9, 2009July 9th, 2009, 9:06 am EDT

I don't know what part of the country you are in. I have had similar problems and have had fairly good luck with a san juan worm pattern. The San Juan is a tubifex worm. They are pretty common in the rocky mountain area. It is probably the easiest pattern to tie and the one that consistently catches big fish, all times of the year. I tie them in bright red and brown. The brown San Juan's look a lot like a small earth worm and I have always suspected trout sometimes take them for just that.

I fish them deep with split shot on the leader about 18 to 20" ahead of the fly, you could use a heavy nymph as a dropper too. I use a strike indicator as well. the strike indicator slows down the travel time in fast water and gives a more drag free drift.

I have had luck with this pattern in lakes, but usually at the inlet. This is usually my standby pattern for deep, fast rivers.

Let me know.
Mike