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 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.
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Caddisfly Genus Ecclisomyia (Early Western Mottled Sedges)
The two Western species Ecclisomyia conspersa and Ecclisomyia maculosa are often found in the same streams.
Where & when
Preferred waters: Mountain streams
In 76 records from GBIF, adults of this genus have mostly been collected during July (39%), June (30%), August (13%), and May (11%).
In 54 records from GBIF, this genus has been collected at elevations ranging from 66 to 11886 ft, with an average (median) of 6594 ft.
Genus Range
Larva & pupa biology
Diet: Plant matter and plankton
Start a Discussion of Ecclisomyia
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
