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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Limnephilus (Summer Flier Sedge) Caddisfly Larva Limnephilus (Summer Flier Sedge) Caddisfly Larva

Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington

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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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True Fly Genus Hexatoma

Specimens of the True Fly Genus Hexatoma

3 Larvae

Hexatoma True Fly Larva

6 Pictures

Hexatoma (Limoniidae) True Fly Larva from Mongaup Creek in New York

I'm not sure if this cranefly larva is in the genus Hexatoma or Limnophila, but the habitat suggests Hexatoma. Its coloring is iridescent, and I've never heard of that before. However, there is an insect virus genus Iridovirus which can infect craneflies and causes iridescence. It has not been reported in this region as far as I can tell, but perhaps it is the culprit. It makes for beautiful pictures.

Collected April 18, 2006 from Mongaup Creek in New York

Added by Troutnut on April 21, 2006

Collected April 18, 2006 from Mongaup Creek in New York and added by Troutnut on April 21, 2006

Hexatoma True Fly Larva

5 Pictures