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.

A small spring creek in Wisconsin. A little brook trout stream tumbles over boulders

Stream photos

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Zapada cinctipes (Tiny Winter Black) Stonefly Nymph Zapada cinctipes (Tiny Winter Black) Stonefly Nymph

Dorsal view of a Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Nymph from the Yakima River in Washington

Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.

13 Recently Added Photos

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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Apatania (Early Smoky Wing Sedge) Caddisfly Adult Pictures

Ruler view of a Apatania (Apataniidae) (Early Smoky Wing Sedge) Caddisfly Adult from the West Branch of the Delaware River in New York The smallest ruler marks are 1 mm.

Lateral view of a Apatania (Apataniidae) (Early Smoky Wing Sedge) Caddisfly Adult from the West Branch of the Delaware River in New York

Apatania (Apataniidae) (Early Smoky Wing Sedge) Caddisfly Adult from the West Branch of the Delaware River in New York

Ventral view of a Apatania (Apataniidae) (Early Smoky Wing Sedge) Caddisfly Adult from the West Branch of the Delaware River in New York

This caddisfly was collected from the West Branch of the Delaware River in New York on May 13th, 2007 and added to Troutnut.com by Troutnut on May 18th, 2007.

Discussions of this Adult

Anyone recognize this caddisfly?

18 replies

Posted by Troutnut on May 18, 2007

Last reply on Jul 31, 2011 by Entoman

The pictures aren't nearly good enough for me to actually follow a key, but I'm pretty curious. This species was out in smaller numbers alongside prolific Brachycentrus flies. Based on the long antennae I'm going to initially guess Leptoceridae, but I don't think that's right. It just doesn't look like the other Leptoceridae on this site, and then antenna, though long, aren't as long as theirs.

Start a Discussion of Adult

References

Baumann, Richard W. 1975. Revision of the Stonefly Family Nemouridae (plecoptera) : a Study Of The World Fauna At The Generic Level. Smithsonian Contributions to Zoology undef(211): 1-74.