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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
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.

Dorsal view of a Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington
This Skwala nymph still has a couple months left to go before hatching, but it's still a good representative of its species, which was extremely abundant in my sample for a stonefly of this size. It's obvious why the Yakima is known for its Skwala hatch.
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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Lateral view of a Female Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Adult from Mystery Creek #43 in New York
This large caddisfly looks really neat close-up.
Troutnut
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Bellevue, WA

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Troutnut on Oct 4, 2006October 4th, 2006, 1:08 pm EDT
I took lots of pictures of this large caddisfly hoping one of the caddis gurus here can identify it to a more detailed level than I. I was able to follow the key in Merritt & Cummins through to Phryganeidae, though I might have made a mistake.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Vshivkova
Posts: 2
Vshivkova on Nov 18, 2006November 18th, 2006, 11:57 am EST
It is not Limnephilidae, I guess it is some of Neophylax or other Thremmatinae. My reasons:a) color pattern look as in many Neophylax; at the base of hind leg spurs the only one black spine (in Limnephilidae - two sines; in Thremmatinae - 0 or one); 2) female genitalia is not as in Limnephilidae s.str.

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