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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

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.
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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Willmilne has attached these 2 pictures to aid in identification. The message is below.
Manitoba Canada

Posts: 19
Willmilne on Jun 22, 2008June 22nd, 2008, 3:38 am EDT

I was hoping somone might offer an ID on this Caddis. Approx. 25mm long excluding antennae . Collected two days ago in Manitoba Canada on a large river system. I looked at Lafontaine's Caddisflies and elsewhere with no definitive luck.

cheers Will

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"Bear Swamp," PA

Posts: 1681
GONZO on Jun 22, 2008June 22nd, 2008, 5:10 am EDT

This looks like Nemotaulius to me, but please await a second opinion as that is strictly a guess.
Grants Pass, OR

Posts: 302
Creno on Jun 22, 2008June 22nd, 2008, 6:08 am EDT
Yes - this is Nemotaulius hostilis
Manitoba Canada

Posts: 19
Willmilne on Jun 22, 2008June 22nd, 2008, 2:50 pm EDT

Many thanks I was surprised to see such a large caddis this early in our season.


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