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.

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Sweltsa (Sallfly) Stonefly Nymph Sweltsa (Sallfly) Stonefly Nymph

Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington

This species was fairly abundant in a February sample of the upper Yakima.

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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.

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October Caddis

Dicosmoecus gilvipes (October Caddis) Caddisfly Adult

2 Pictures

Dicosmoecus gilvipes (Limnephilidae) (October Caddis) Caddisfly Adult from the Touchet River in Washington

Collected September 4, 2010 from the Touchet River in Washington

Added by Bnewell on June 27, 2011

Collected September 4, 2010 from the Touchet River in Washington and added by Bnewell on June 27, 2011

Gutcutter

Pennsylvania

Posts: 470

Gutcutter on Sep 8, 2011September 8th, 2011, 2:40 pm EDT

Is this the same large caddis that hatches in early October in Central PA? I don't recall them being that "orange", but the size is about right.

All men who fish may in turn be divided into two parts: those who fish for trout and those who don't. Trout fishermen are a race apart: they are a dedicated crew- indolent, improvident, and quietly mad.

-Robert Traver, Trout Madness

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Sep 8, 2011September 8th, 2011, 3:55 pm EDT

Tony-

Dicosmoecus is a genus found in the Pacific (NW and SW). You may be thinking of Pycnopsyche, a fall emerger in PA.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Sayfu
Posts: 560

Sayfu on Sep 8, 2011September 8th, 2011, 3:57 pm EDT

Dunno about Penn., but sure looks like Dicosmoecus that hatches out on many of our Western rivers. A popular steelhead pattern is an elk-haired skittered, swinging dry tied with a burnt orange body is how we describe the body color..tied on a #6 steelhead hook, or there abouts. It is also a very popular pattern for trout in a slightly smaller pattern fished mainly dead drifted. I generally see the adults on the water later in the day.