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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Kogotus Stonefly Nymph Kogotus Stonefly Nymph

Dorsal view of a Kogotus (Perlodidae) Stonefly Nymph from Mystery Creek #199 in Washington

This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.

8 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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Rhyacophila Emergence

Rhyacophila fuscula (Green Sedge) Caddisfly Larva

11 Pictures

Dorsal view of a Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York

Collected March 31, 2007 from Mystery Creek #62 in New York

Added by Troutnut on April 3, 2007

Collected March 31, 2007 from Mystery Creek #62 in New York and added by Troutnut on April 3, 2007

Flybyknight
Milton, DE

Posts: 82

Flybyknight on Nov 23, 2007November 23rd, 2007, 10:38 pm EST

Interesting to learn that Jason collected R. fuscula April 1st. My hatch chart for the East Branch Delaware needs to be corrected, as I had R. fuscula hatching much later. Schweibert mentions this insect on p.83.

Dick

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

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Nov 24, 2007November 24th, 2007, 3:59 am EST

Dick-

I may be missing something here, but it appears the Rhyacophila fuscula which Jason collected and photographed were (was?) in larval stage, and therefore wouldn't be emerging until later, so perhaps your chart does not require revision.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Troutnut