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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Limnephilidae (Giant Sedges) Caddisfly Larva Limnephilidae (Giant Sedges) Caddisfly Larva

Dorsal view of a Limnephilidae (Giant Sedges) Caddisfly Larva from the Yakima River in Washington

This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.

10 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.

Neophylax (Autumn Mottled Sedge) Caddisfly Larva Pictures

The size of the head compared to the body in this larva is surprising, and I think this means it's a fairly early instar of something which is going to get a lot bigger, but I'm not sure.

Ruler view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York The smallest ruler marks are 1 mm.

Case view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York

Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York

Lateral view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York

Dorsal view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from the Neversink River (above reservoir) in New York

This caddisfly was collected from the Neversink River (above reservoir) in New York on May 6th, 2007 and added to Troutnut.com by Troutnut on May 10th, 2007.

Discussions of this Larva

Looks like neophylax

1 replies

Posted by Litobrancha on May 13, 2007

Last reply on Dec 21, 2007 by Creno

can't tell how much mesonotum sclerites are emarginated but has the horsehead look of Neophylax. case too. legs are long too. don't know any of the other uenoids.

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