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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.

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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This common name refers to only one family. Click its scientific name to learn more.

Caddisfly Family Hydroptilidae

These are sometimes called Microcaddisflies.
Both anglers and entomologists know these diminutive flies as "Microcaddisflies." The term refers to this family specifically, not to all tiny caddisflies. Many are large enough for imitation on small hooks, but some are impossibly small, as tiny as hook size 36.

Like the Tricorythodes mayflies, Microcaddisflies can be important to trout because of their extreme abundance in certian waters.
Lateral view of a Dibusa angata (Hydroptilidae) (Microcaddis) Caddisfly Adult from Spring Creek in Wisconsin
I'm tentatively classifying this one as Dibusa angata because I cannot see any ocelli in my dorsal view of the head (and because it has a single spur on each front tibia). However, sometimes they can be difficult to spot when obscured behind setae in general, so I'm not 100 % sure on this one. If there are ocelli I missed, then based on ranges and colors the genus ought to be Stactobiella.
Hydroptila (Hydroptilidae) (Varicolored Microcaddis) Caddisfly Larva from the Flathead River-Upper in Montana


Scientific Name
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