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.
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This specimen keys to the Epeorus albertae group of species. Of the five species in that group, the two known in Washington state are Epeorus albertae and Epeorus dulciana. Of the two, albertae has been collected in vastly more locations in Washington than dulciana, suggesting it is far more common. On that basis alone I'm tentatively putting this nymph in albertae, with the large caveat that there's no real information to rule out dulciana.
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Stonefly Genus Paraleuctra (Tiny Winter Blacks)
Where & when
In 1 records from GBIF, adults of this genus have been collected during June (100%).
Genus Range
Specimens of the Stonefly Genus Paraleuctra
1 Adult
Members of the family Leuctridae are usually easily identified to family due to the "rolled" wing. They are small, nearly 1/4 " in length, black in color and emerge in early spring.
Start a Discussion of Paraleuctra
Stonefly Genus Paraleuctra (Tiny Winter Blacks)
Taxonomy
Species in Paraleuctra
Paraleuctra occidentalisWestern Needleflies
1
1
Paraleuctra saraAppalachian Needleflies
0
0
Species in Paraleuctra: Paraleuctra occidentalis, Paraleuctra sara
5 species (Paraleuctra divisa, Paraleuctra forcipata, Paraleuctra jewetti, Paraleuctra rickeri, and Paraleuctra vershina) aren't included.