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

Featured on the forum

Re: Trico emergers
In the Mayfly Genus Tricorythodes by Bwoklink (Martinlf replied)

Re: Trico Tips
In the Mayfly Genus Tricorythodes by Martinlf

Re: UV spectrum and trout
In General Discussion by Martinlf

Re: closing the gender gap in flyfishing
In General Discussion by Konchu (Smallflyguy replied)

Re: Fishing Kupa River, Slovenia
In Fishing Reports by Slocum (Fish1 replied)

Skwala (Large Springfly) Stonefly Nymph Skwala (Large Springfly) Stonefly Nymph

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.

6 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.

Hydropsyche

Female Neophylax (Autumn Mottled Sedge) Caddisfly Adult

20 Pictures

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.

Collected September 18, 2006 from Mystery Creek #43 in New York

Added by Troutnut on October 4, 2006

Collected September 18, 2006 from Mystery Creek #43 in New York and added by Troutnut on October 4, 2006

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Oct 4, 2006October 4th, 2006, 1:53 pm EDT

Jason-

Looks like Hydrospyche to me, most likely H. betteni. However, if you've keyed it out to Phryganeidae, I'm probably wrong.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Oct 5, 2006October 5th, 2006, 8:02 am EDT

My first impression was that the wing didn't have quite the degree of recurve typical of Hydropsyche. The photo of the maxillary palp seems conclusive in ruling out this genus (the fifth segment would be much longer in Hydropsyche).

The pattern of spurs on the legs seems to follow Limnephilidae (1, 2-3, 4) rather than Phryganeidae (2, 4, 4); and the five-segmented palp would be female (in either family). Size, color, habitat, and season all seem to suggest Limnephilus (Summer Flier Sedge) as the likely genus to me; but the Limnephilidae are known as an "unruly" family, and some caddisflies just confuse the hell out of me.