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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Onocosmoecus (Great Late-Summer Sedge) Caddisfly Larva Onocosmoecus (Great Late-Summer Sedge) Caddisfly Larva

Lateral view of a Onocosmoecus (Limnephilidae) (Great Late-Summer Sedge) Caddisfly Larva from the Yakima River in Washington

This specimen keys pretty easily to Onocosmoecus, and it closely resembles a specimen from Alaska which caddis expert Dave Ruiter recognized as this genus. As with that specimen, the only species in the genus documented in this area is Onocosmoecus unicolor, but Dave suggested for that specimen that there might be multiple not-yet-distinguished species under the unicolor umbrella and it would be best to stick with the genus-level ID. I'm doing the same for this one.

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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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Mayflies DVD Review

Adirman

Monticello, NY

Posts: 479

Adirman on Jun 21, 2011June 21st, 2011, 4:58 pm EDT

I bought the James Marsh DVD on Mayflies as advertised on Troutnut. Cost $34.95 w/ shipping and got w/in about 7-8 days, not bad. The DVD sound quality was a little weak at times but not bad; overall it was very informative though! The host, James Marsh, takes you through all of the major Mayflies w/ upclose shots, Latin names, and common name. Overall, I'd give it about a B. Solid stuff and defintely worth getting but could be a tad better in terms of sound quality and maybe providing a scenario where he (James) himself actually fishes and exhibits his thought processes from initial arrival on-stream to actually successfully catching trout. Still though, solid and recommended!!