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.

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Glossosoma (Little Brown Short-horned Sedge) Caddisfly Larva Glossosoma (Little Brown Short-horned Sedge) Caddisfly Larva

Dorsal view of a Glossosoma (Glossosomatidae) (Little Brown Short-horned Sedge) Caddisfly Larva from the Yakima River in Washington

I caught this tiny larva without a case, but it seems to key pretty clearly to to Glossosomatidae. From there, the lack of sclerites on the mesonotum points to either Glossosoma or Anagapetus. Although it's difficult to see in a 2D image from the microscope, it's pretty clear in the live 3D view that the pronotum is only excised about 1/3 of its length to accommodate the forecoxa, not 2/3, which points to Glossosoma at Couplet 5 of the Key to Genera of Glossosomatidae Larvae.

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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.

Midge Emergences

PaulRoberts

Colorado

Posts: 1776

PaulRoberts on Mar 23, 2018March 23rd, 2018, 5:22 am EDT

Hi all. The midge emergences are now on in my local warmwater ponds. These are the large Chironomids (~#18/16).

Any idea whether such critters emerge at certain times of the day? Pupae in the morning? Egg-layers... ? I saw a mating swarm late morning yesterday, under mostly cloudy skies.

Any ideas on emergence timing for larger Chironomids?

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Mar 23, 2018March 23rd, 2018, 6:33 am EDT

I have no idea about midges specifically, but a very rough rule of thumb for this early in the season is that cold-blooded things tend to be the most active, including for emergence, at the warmest time of day.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Adirman

Monticello, NY

Posts: 479

Adirman on Mar 29, 2018March 29th, 2018, 4:44 am EDT

Early season trout fishing is ideal for the late risers for sure cuz best action is middle of the day, in contrast to the entire rest of the season ðŸ˜ðŸ˜

Jmd123

Oscoda, MI

Posts: 2474

Jmd123 on Mar 29, 2018March 29th, 2018, 4:56 am EDT

Actually, early summer, when I don't even bother fishing before 8 p.m., REALLY lets me sleep in late! ;oD

But yes, around these parts the Hendricksons and any early caddis seem to come off in the early afternoon - essentially the warmest part of the day. This IS nice as Adirman says, you are fishing in daylight! Of course, later in summer during hopper season the warmer sunnier days are better, and I will start in the afternoon with hopper imitations and end at dusk with caddis...

I would guess midges would come off in the afternoon early in the season.

Jonathon

No matter how big the one you just caught is, there's always a bigger one out there somewhere...

Adirman

Monticello, NY

Posts: 479

Adirman on Mar 29, 2018March 29th, 2018, 6:30 am EDT

Reading your post gets the juices flowing for some good evening dry fly fishing action!! ðŸ˜Š

PaulRoberts

Colorado

Posts: 1776

PaulRoberts on Mar 29, 2018March 29th, 2018, 10:31 am EDT

Thanks, all.