Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin

Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

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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Female Theliopsyche (Little Brown Sedge) Caddisfly Adult Pictures

This one has a neat iridescent sheen to its wings.

See the discussion for details on this fly's tentative ID.

Ruler view of a Female Theliopsyche (Lepidostomatidae) (Little Brown Sedge) Caddisfly Adult from Mystery Creek #42 in Pennsylvania The smallest ruler marks are 1 mm.

Dorsal view of a Female Theliopsyche (Lepidostomatidae) (Little Brown Sedge) Caddisfly Adult from Mystery Creek #42 in Pennsylvania

Ventral view of a Female Theliopsyche (Lepidostomatidae) (Little Brown Sedge) Caddisfly Adult from Mystery Creek #42 in Pennsylvania

Lateral view of a Female Theliopsyche (Lepidostomatidae) (Little Brown Sedge) Caddisfly Adult from Mystery Creek #42 in Pennsylvania

Female Theliopsyche (Lepidostomatidae) (Little Brown Sedge) Caddisfly Adult from Mystery Creek #42 in Pennsylvania

This caddisfly was collected from Mystery Creek #42 in Pennsylvania on May 28th, 2007 and added to Troutnut.com by Troutnut on June 4th, 2007.

Discussions of this Adult

Chimarra

11 replies

Posted by Taxon on Jun 5, 2007

Last reply on Dec 31, 2007 by Taxon

Jason-

That would be Chimarra, most likely C. aterrima, but it could also be either C. obscura or C. socia. Based on that neat black egg mass visible in the ventral view photo, it would also appear that it's a female.

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