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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 Kogotus (Perlodidae) Stonefly Nymph from Mystery Creek #199 in Washington
This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.
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 Paragnetina (Golden Stones)

Paragnetina media is an important species in both the East and the Midwest, and Paragnetina immarginata is important in the East.

Where & when

In 67 records from GBIF, adults of this genus have mostly been collected during June (33%), July (24%), May (21%), August (9%), and April (6%).

In 10 records from GBIF, this genus has been collected at elevations ranging from 600 to 3802 ft, with an average (median) of 1148 ft.

Genus Range

Identification

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

Specimens of the Stonefly Genus Paragnetina

1 Male Adult
2 Female Adults
3 Nymphs

Start a Discussion of Paragnetina

Stonefly Genus Paragnetina (Golden Stones)

Taxonomy
3 species (Paragnetina fumosa, Paragnetina ichusa, and Paragnetina kansensis) aren't included.
Genus Range
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