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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.

Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington
This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
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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Male Mystacides sepulchralis (Black Dancer) Caddisfly Adult Pictures

This was one of many of its species which were gathered in small, low-flying swarms of about a dozen insects near the alder trees in the afternoon on a small stream.

Black as night!

Lateral view of a Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York
Ruler view of a Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York The smallest ruler marks are 1 mm.
Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York
Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York
Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York
Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York
Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York
Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York
Ventral view of a Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York
Male Mystacides sepulchralis (Leptoceridae) (Black Dancer) Caddisfly Adult from the West Branch of Owego Creek in New York

This caddisfly was collected from the West Branch of Owego Creek in New York on August 22nd, 2006 and added to Troutnut.com by Troutnut on August 23rd, 2006.

Discussions of this Adult

M. sepulchralis
1 replies
Posted by Taxon on Aug 23, 2006
Last reply on Aug 24, 2006 by Troutnut
Based on wings being shiny black rather than dull, and it not having been collected in the West, it is most likely M. sepulchralis.

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Male Mystacides sepulchralis (Black Dancer) Caddisfly Adult Pictures

Collection details
Location: West Branch of Owego Creek, New York
Date: August 22nd, 2006
Added to site: August 23rd, 2006
Author: Troutnut
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