Stoneflies of the United States
Stoneflies of Okanogan County, Washington
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Taeniopterygidae
Subfamily Brachypteryinae
Pacific Willowfly -- (Taenionema pacificum) Common Willowfly -- (Taenionema pallidum)
Perlodidae
Subfamily Perlodinae
Toston Springfly -- (Cultus tostonus)
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