Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York

Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

Stream photos

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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.

11 Recently Added Photos

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.

caddis fly phonics guide

This topic is about the Caddisfly Family Brachycentridae

Brachycentrus is one of the most important caddisfly genera in America. Microsema is smaller and rarely, if ever, significant. Amiocentrus aspilus can be an important Western hatch.

Example specimens

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Brachycentrus appalachia (Apple Caddis) Caddisfly Adult

Lateral view of a Brachycentrus appalachia (Brachycentridae) (Apple Caddis) Caddisfly Adult from the West Branch of the Delaware River in New York

I captured this specimen in the same color as this photograph, during its egg-laying flight. The emergers are much lighter.

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Brachycentrus appalachia (Apple Caddis) Caddisfly Adult

The wings of this specimen were pale tan, almost white, when I collected it, and the body was of the lighter "apple green" from which this species gets its common name. Everything turned much darker by the time I got it home and under the camera. The wings look even darker in some of these pictures because the background is black and the wings are unusually translucent. You can see that in one of the pictures where the body easily through the wings. They're really a light, translucent gray, which is still far from the pale tan of the same fly when it was freshly emerged.

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Brachycentrus appalachia (Apple Caddis) Caddisfly Adult

Lateral view of a Brachycentrus appalachia (Brachycentridae) (Apple Caddis) Caddisfly Adult from the Beaverkill River in New York

SlapNuts
mt airy maryland

Posts: 1

SlapNuts on Oct 30, 2009October 30th, 2009, 1:17 am EDT

I have trouble pronouncing the scientific names of most caddis flies. Does anyone know where I can find a phonics name list or guide.

Example Ephemerella ef uh mare el uh

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Oct 30, 2009October 30th, 2009, 4:24 am EDT

Ken-

That would indeed be nice, but I don't believe one exists. In my experience, genus names of caddisflies (as opposed to mayflies) are rarely used in spoken discussion among fly fishers, probably for that very reason. Incidentally, the only source (of which I'm aware) for the phonetic pronunciation of Ephemerella suggests it to be ef-fem-er-ella.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Martinlf

Moderator
Palmyra PA

Posts: 3047

Martinlf on Oct 30, 2009October 30th, 2009, 11:27 pm EDT

You say "ef-fem-er-ella"

I say "ef uh mare el uh"

Sorry Roger, couldn't resist.

All others, this is just an inside joke based on an ancient thread.

"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Oct 31, 2009October 31st, 2009, 1:46 am EDT

Hi Louis-

Nice to hear from you again, and not altogether unexpected.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Creno
Grants Pass, OR

Posts: 302

Creno on Oct 31, 2009October 31st, 2009, 12:58 pm EDT

Fof caddis genera try putting the accent on the third syllable from the end. Most everyone will understand it.

Martinlf

Moderator
Palmyra PA

Posts: 3047

Martinlf on Oct 31, 2009October 31st, 2009, 2:03 pm EDT

Hi Roger,

We really must fish sometime. I have to travel some for business from time to time; I'll keep an eye out for conferences in Washington.

All best,

Louis

"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Oct 31, 2009October 31st, 2009, 3:53 pm EDT

Louis,

Sounds like a plan.

Best regards,

Roger

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com