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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.

Rock Creek in Montana

Stream photos

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Perlodidae (Springflies and Yellow Stones) Stonefly NymphPerlodidae (Springflies and Yellow Stones) Stonefly Nymph
Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.
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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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Stonefly Genus Neoperla (Golden Stones)

Where & when

In 44 records from GBIF, adults of this genus have mostly been collected during June (55%), July (20%), and August (20%).

In 4 records from GBIF, this genus has been collected at elevations of 2625, 4183, 5085, and 7349 ft.

Genus Range
Map of specific collection sites

Identification

To determine whether a specimen of Perlidae belongs to Neoperla, use the Key to Genera of Perlidae Nymphs.


Start a Discussion of Neoperla

Stonefly Genus Neoperla (Golden Stones)

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Plecoptera (Stoneflies)
  5. » Family Perlidae (Golden Stones)
  6. » Genus Neoperla (Golden Stones)
Species in Neoperla
Neoperla coosaCoosa Stone
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Neoperla stewartiMultispine Stone
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Species in Neoperla: Neoperla coosa, Neoperla stewarti
13 species (Neoperla carlsoni, Neoperla catharae, Neoperla choctaw, Neoperla clymene, Neoperla coxi, Neoperla falayah, Neoperla gaufini, Neoperla harpi, Neoperla harrisi, Neoperla mainensis, Neoperla occipitalis, Neoperla osage, and Neoperla robisoni) aren't included.
Genus Range
Map of specific collection sites
Common Names
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