Stoneflies of the United States
Stoneflies of Washington County, Oregon
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Capniidae
Subfamily Capniinae
Northwest Snowfly -- (Capnia melia) Dwarf Snowfly -- (Capnia nana) Pacific Snowfly -- (Capnia promota) Autumn Snowfly -- (Mesocapnia autumna) Spined Snowfly -- (Mesocapnia projecta)
Nemouridae
Subfamily Nemourinae
Hooked Forestfly -- (Ostrocerca dimicki)
Taeniopterygidae
Subfamily Brachypteryinae
Oregon Willowfly -- (Taenionema oregonense) Subfamily Taeniopteryginae
Boreal Willowfly -- (Taeniopteryx nivalis)
Chloroperlidae
Subfamily Chloroperlinae
Colorado Sallfly -- (Sweltsa coloradensis)
Perlidae
Subfamily Acroneuriinae
Western Stone -- (Calineuria californica)
Perlodidae
Subfamily Isoperlinae
Red Stripetail -- (Isoperla marmorata)
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