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.

The Middle Fork of the Koyukuk River in Alaska

Stream photos

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Limnephilus (Summer Flier Sedge) Caddisfly Larva Limnephilus (Summer Flier Sedge) Caddisfly Larva

Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington

This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.

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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.

cased caddis pattern

Mcjames
Cortland Manor, NY

Posts: 139

Mcjames on Jul 5, 2007July 5th, 2007, 3:26 am EDT

last year I collected a caddis larva with a case constructed of small twigs. I "evicted" the worm, varnished the case, and glued it to a weighted hook with an imitation of the peeking caddis head. question: is this legal and/or ethical? or will using this fly make me a bait fisherman? I havent had the chance to try it yet.

I am haunted by waters

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Jul 5, 2007July 5th, 2007, 4:51 am EDT

question: is this legal and/or ethical?

James, as long as collecting the larva was legal, the question of fishing the case as part of an imitation would depend upon where you fish. On some special regulation waters it might not meet the legal critera for a "fly" and on others it probably would. As for the ethical part, I'll leave that entirely for you to decide. Many have used this approach to imitating cased larvae before, but I've never heard much about the effectiveness of the resulting "fly."

IEatimago
Spring Mills, PA

Posts: 97

IEatimago on Jul 5, 2007July 5th, 2007, 10:43 am EDT

is it common for it to be illegal to collect insects?

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Jul 5, 2007July 5th, 2007, 10:49 am EDT

I haven't read the NYS regulations recently, but here in PA, aquatic larvae are considered "fishbait" and are limited to 50/day. On many of our special regulation streams, collection is not legal.

IEatimago
Spring Mills, PA

Posts: 97

IEatimago on Jul 5, 2007July 5th, 2007, 2:18 pm EDT

good to know.
i will have to find if its legal in my local water's

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Jul 5, 2007July 5th, 2007, 2:26 pm EDT

I wouldn't sweat it too much, Jasen. Unless you're regularly seining hundreds of them and planning to set up a streamside baitstand, you're probably fine. I would avoid collecting in special reg. areas restricted to flies and lures though.