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

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.

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.
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.
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Dorsal view of a Caenis (Caenidae) (Angler's Curse) Mayfly Nymph from the Namekagon River in Wisconsin
germansville PA

Posts: 14
Flytyer0423 on Aug 2, 2009August 2nd, 2009, 5:05 pm EDT
i was just wondering why they call this fly a angler's curse?
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"Bear Swamp," PA

Posts: 1681
GONZO on Aug 2, 2009August 2nd, 2009, 5:40 pm EDT

I believe the name was coined by British chalkstream anglers. At the time it was coined, fly-tying hooks were not made in sizes that could match these tiny mayflies. Even with an appropriate imitation, they often hatch in such great numbers that the fly is hopelessly lost among them. The Brits also call them "Broadwings" (often preceded by "those bloody...").

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