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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.

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 Palaeagapetus (Microcaddisflies)

Where & when

In 20 records from GBIF, adults of this genus have mostly been collected during August (35%), July (25%), and June (25%).

In 43 records from GBIF, this genus has been collected at elevations ranging from 69 to 7005 ft, with an average (median) of 1919 ft.

Genus Range

Start a Discussion of Palaeagapetus

References

Caddisfly Genus Palaeagapetus (Microcaddisflies)

Taxonomy
1 species (Palaeagapetus guppyi) isn't included.
Genus Range
Common Name
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