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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.

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.
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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You can create new topics in this section from each hatch's page in the insect section.
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october caddis
Oct 6, 2011 by Amosg in genus Dicosmoecus
0
October Caddis Featured Topic
Jul 29, 2006 by Taxon in genus Dicosmoecus
19
Oct 24, 2008
by Jack_k
3
Oct 3, 2008
by GONZO
Apataniidae?
Oct 8, 2006 by GONZO in family Limnephilidae
3
Oct 9, 2006
by GONZO
1
Aug 22, 2006
by Taxon
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