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.
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This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.
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Little Snowflies
Like most common names,"Little Snowfly" can refer to more than one taxon. They're previewed below, along with 5 specimens. For more detail click through to the scientific names.
Stonefly Family Capniidae
These are often called Little Snowflies.
These are the first stoneflies of the year to appear in most parts of the country, and often the first aquatic insects noticed by the angler. Their dark brown or black bodies are easy to spot against the snowbanks where they crawl around.
Capnia in the West and Allocapnia in the East are probably the most common genera of this prolific family.
Capnia in the West and Allocapnia in the East are probably the most common genera of this prolific family.
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Stonefly Genus Allocapnia
These are often called Little Snowflies.
Allocapnia granulata is the most abundant Capniidae species in the East.
Stonefly Genus Capnia
These are often called Little Snowflies.
This is one of the most common genera of Capniidae.
Stonefly Genus Isocapnia
These are often called Little Snowflies.
Stonefly Genus Utacapnia
These are often called Little Snowflies.
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Stonefly Species Utacapnia distincta
These are often called Little Snowflies.
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Stonefly Species Capnia gracilaria
These are often called Little Snowflies.
Stonefly Species Allocapnia granulata
These are often called Little Snowflies.
Stonefly Species Isocapnia integra
These are often called Little Snowflies.