Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana

Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

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.

Mayflies which crawl underwater to lay their eggs

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Jul 22, 2006July 22nd, 2006, 6:13 am EDT

It's fairly common knowledge that many Baetis mayflies crawl underwater to lay their eggs. What's strange is that most authors don't seem very surprised by this. As best I can tell from all my recent reading and note-taking, Baetis is the only genus of mayflies which displays this behavior. That seems remarkable.

Does anybody know of any other mayflies that do this? Have I missed something?

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Taxon