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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.

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).
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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Caddisfly Genus Apatania (Early Smoky Wing Sedges)

This far nothern genus is occasionally important in American trout streams, especially the species Apatania incerta.

Where & when

In 263 records from GBIF, adults of this genus have mostly been collected during July (28%), August (21%), June (18%), September (16%), and May (6%).

In 244 records from GBIF, this genus has been collected at elevations ranging from -164 to 12657 ft, with an average (median) of 699 ft.

Genus Range

Specimens of the Caddisfly Genus Apatania

2 Adults
1 Larva

Start a Discussion of Apatania

References

Caddisfly Genus Apatania (Early Smoky Wing Sedges)

Taxonomy
Species in Apatania
Apatania incerta
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Species in Apatania: Apatania incerta
17 species (Apatania alberta, Apatania arizona, Apatania barri, Apatania blacki, Apatania chasica, Apatania comosa, Apatania crymophila, Apatania hirtipes, Apatania nigra, Apatania pictula, Apatania praevolans, Apatania rossi, Apatania shoshone, Apatania sorex, Apatania stigmatella, Apatania tavala, and Apatania zonella) aren't included.
Genus Range
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