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.

Neversink Gorge (Wolf Brook) in New York

Stream photos

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Hydropsyche (Spotted Sedge) Caddisfly Larva Hydropsyche (Spotted Sedge) Caddisfly Larva

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington

With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.

9 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.

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Unit of Measure

Male Ephemerella subvaria (Hendrickson) Mayfly Dun

9 Pictures

Lateral view of a Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Dun from the Beaverkill River in New York

I collected this male Hendrickson dun and a female in the pool on the Beaverkill where the popular Hendrickson pattern was first created. He is descended from mayfly royalty.

Collected April 18, 2006 from the Beaverkill River in New York

Added by Troutnut on April 21, 2006

Collected April 18, 2006 from the Beaverkill River in New York and added by Troutnut on April 21, 2006

Flybyknight
Milton, DE

Posts: 82

Flybyknight on Jan 11, 2008January 11th, 2008, 9:22 pm EST

Look at the ruler. There are 10 clicks to a number.
I believe that we are looking at millimeters, not inches,
IMHO.

Dick

Lightly on the dimpling eddy fling;
the hypocritic fly's unruffled wing.
Thomas Scott

Blue-winged OlivesBaetis

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