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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.

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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Dragonfly Species Hagenius brevistylus (Dragonhunter)

Where & when

In 151 records from GBIF, adults of this species have mostly been collected during June (21%), August (21%), July (20%), September (18%), May (13%), and October (5%).

In 9 records from GBIF, this species has been collected at elevations ranging from 262 to 2723 ft, with an average (median) of 869 ft.

Species Range

Specimens of the Dragonfly Species Hagenius brevistylus

1 Nymph

Start a Discussion of Hagenius brevistylus

Dragonfly Species Hagenius brevistylus (Dragonhunter)

Taxonomy
Species Range
Common Name
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