Stoneflies of the United States
Stoneflies of Stillwater County, Montana
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Capniidae
Subfamily Capniinae
Six-knobbed Snowfly -- (Capnia sextuberculata) Headwaters Snowfly -- (Isocapnia missourii) Vedder Snowfly -- (Isocapnia vedderensis)
Nemouridae
Subfamily Nemourinae
Intermountain Forestfly -- (Zapada haysi)
Chloroperlidae
Subfamily Chloroperlinae
Beartooth Sallfly -- (Alloperla medvedai) Western Sallfly -- (Alloperla severa) Yellow Sallfly -- (Suwallia pallidula) Alberta Sallfly -- (Sweltsa albertensis) Colorado Sallfly -- (Sweltsa coloradensis)
Perlidae
Subfamily Acroneuriinae
Golden Stone -- (Hesperoperla pacifica) Subfamily Perlinae
Shortwing Stone -- (Claassenia sabulosa)
Perlodidae
Subfamily Isoperlinae
Western Stripetail -- (Isoperla fulva) Plains Stripetail -- (Isoperla longiseta) Mormon Stripetail -- (Isoperla mormona) Fivespot Stripetail -- (Isoperla quinquepunctata) Subfamily Perlodinae
American Springfly -- (Skwala americana) Toston Springfly -- (Cultus tostonus) Elongate Springfly -- (Isogenoides elongatus)
Pteronarcyidae
Subfamily Pteronarcyinae
Least Salmonfly -- (Pteronarcella badia)
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