Stoneflies of the United States
Stoneflies of Lewis County, Washington
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Capniidae
Subfamily Capniinae
Bent Snowfly -- (Capnia licina) Northwest Snowfly -- (Capnia melia) Pacific Snowfly -- (Capnia promota) Shorttailed Snowfly -- (Eucapnopsis brevicauda) Stretched Snowfly -- (Mesocapnia porrecta) Clatsop Snowfly -- (Paracapnia oswegaptera)
Leuctridae
Subfamily Leuctrinae
Smooth Needlefly -- (Despaxia augusta) Hairy Needlefly -- (Moselia infuscata) Bullshorn Needlefly -- (Paraleuctra forcipata) Western Needlefly -- (Paraleuctra occidentalis) Summit Needlefly -- (Paraleuctra vershina) Utah Needlefly -- (Perlomyia utahensis) Subfamily Megaleuctrinae
Cascades Needlefly -- (Megaleuctra kincaidi)
Nemouridae
Subfamily Amphinemurinae
No Common Name -- (Malenka cornuta) Tiny Forestfly -- (Malenka tina) Subfamily Nemourinae
Cascades Forestfly -- (Ostrocerca foersteri) Least Forestfly -- (Podmosta decepta) Delicate Forestfly -- (Podmosta delicatula) Banded Forestfly -- (Prostoia besametsa) Broken Forestfly -- (Soyedina interrupta) Knobbed Forestfly -- (Soyedina producta) Common Forestfly -- (Zapada cinctipes) Columbian Forestfly -- (Zapada columbiana) Frigid Forestfly -- (Zapada frigida) Oregon Forestfly -- (Zapada oregonensis)
Taeniopterygidae
Subfamily Brachypteryinae
Western Willowfly -- (Doddsia occidentalis) Pale Willowfly -- (Taenionema kincaidi) Oregon Willowfly -- (Taenionema oregonense) Subfamily Taeniopteryginae
Boreal Willowfly -- (Taeniopteryx nivalis)
Chloroperlidae
Subfamily Chloroperlinae
Cascades Sallfly -- (Alloperla fraterna) Sawtooth Sallfly -- (Alloperla serrata) Margined Sallfly -- (Plumiperla diversa) Pale Sallfly -- (Suwallia dubia) Boreal Sallfly -- (Sweltsa borealis) Exquisite Sallfly -- (Sweltsa exquisita) Alpine Sallfly -- (Sweltsa occidens) Canadian Sallfly -- (Sweltsa revelstoka) Subfamily Paraperlinae
Longhead Sallfly -- (Kathroperla perdita) Slenderhead Sallfly -- (Kathroperla takhoma) Hyporheic Sallfly -- (Paraperla frontalis)
Peltoperlidae
Subfamily Peltoperlinae
Rainier Roachfly -- (Soliperla fenderi) Brown Roachfly -- (Yoraperla mariana) Black Roachfly -- (Yoraperla nigrisoma) Coastal Roachfly -- (Yoraperla siletz)
Perlidae
Subfamily Acroneuriinae
Cascades Stone -- (Doroneuria baumanni) Golden Stone -- (Hesperoperla pacifica) Subfamily Perlinae
Shortwing Stone -- (Claassenia sabulosa)
Perlodidae
Subfamily Isoperlinae
Olympia Stripetail -- (Isoperla gravitans) Rainier Stripetail -- (Isoperla rainieri) Notched Stripetail -- (Isoperla sordida) Subfamily Perlodinae
Truncate Springfly -- (Megarcys subtruncata) Olympic Springfly -- (Setvena tibialis) American Springfly -- (Skwala americana)
Pteronarcyidae
Subfamily Pteronarcyinae
Ebony Salmonfly -- (Pteronarcys princeps)
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