| Arcynopteryx aurea (Smith, L.W., 1917) | ⇒ Perlinodes aureus Smith, 1917 |
| Arcynopteryx barbera | |
| Arcynopteryx compacta (McLachlan, 1872) | ⇒ Skwala compacta McLachlan, 1872 |
| Arcynopteryx curvata (Hanson, 1942) | ⇒ Skwala curvata Hanson, 1942 |
| Arcynopteryx dichroa McLachlan, 1872 | Holarctic Springfly |
| Arcynopteryx parallela (Frison, 1936) | ⇒ Skwala americana Klapálek, 1912 |
| Arcynopteryx percella | |
| Arcynopteryx picticcps | |
| Arcynopteryx sctucna | |
| Arcynopteryx watertoni (Ricker, 1952) | ⇒ Megarcys watertoni Ricker, 1952 |
| Baumannella alameda Needham & Cl..., 1925 | Alameda Springfly |
| Chernokrilus errata Claassen, 1936 | |
| Chernokrilus erratus (Claassen, 1936) | ⇒ Chernokrilus misnomus Claassen, 1925 |
| Chernokrilus misnoma Claassen, 1936 | |
| Chernokrilus misnomus Claassen, 1925 | Pacific Springfly |
| Cultus aestivalis Needham & Cl..., 1925 | Large aegialian scarab |
| Cultus decisa Walker, 1852 | |
| Cultus decisus Walker, 1852 | |
| Cultus decisus decisus Walker, 1852 | Great Lakes Springfly |
| Cultus decisus isolatus Banks, 1920 | Southern Springfly |
| Cultus isolatus Banks, 1920 | |
| Cultus pilata Frison, 1942 | |
| Cultus pilatus Frison, 1942 | Vedder Springfly |
| Cultus tostonus Ricker, 1952 | Toston Springfly |
| Cultus verticalis Banks, 1920 | Spiny Springfly |
| Diploperla duplicata Banks, 1920 | Two-lobed Springfly |
| Diploperla janeae Kondratieff ..., 2017 | Jane's Springfly |
| Diploperla kanawholensis Kirchner & K..., 1984 | Kanawhole Springfly |
| Diploperla morgani Kondratieff ..., 1979 | Virginia Springfly |
| Diploperla robusta Stark & Gaufin, 1974 | Robust Springfly |
| Diura bicaudata Linnaeus, 1758 | Lapland Springfly |
| Diura knowltoni (Frison, 1937) | ⇒ Isogenus knowltoni Frison, 1937 |
| Diura nanseni Kempny, 1900 | Arctic Springfly |
| Diura washingtoniana Hanson, 1940 | Presidential Springfly |
| Frisonia picticeps Hanson, 1942 | Painted Springfly |
| Helopicus bogaloosa Stark & Ray, 1983 | Masked Springfly |
| Helopicus nalata Frison, 1942 | |
| Helopicus nalatus Frison, 1942 | Ozark Springfly |
| Helopicus rickeri (Stark, 1984) | ⇒ Hydroperla rickeri Stark, 1984 |
| Helopicus subvarians Banks, 1920 | Vernal Springfly |
| Hydroperla crosbyi Needham & Cl..., 1925 | Early Springfly |
| Hydroperla fugitans Needham & Cl..., 1925 | Austin Springfly |
| Hydroperla phomidia | |
| Hydroperla phormidia Ray & Stark, 1981 | Brownwater Springfly |
| Hydroperla rickeri Stark, 1984 | Tennessee Springfly |
| Isogenoides colubrinus Hagen, 1874 | Blackfoot Springfly |
| Isogenoides dorata Frison, 1942 | |
| Isogenoides doratus Frison, 1942 | Indiana Springfly |
| Isogenoides elongatus Hagen, 1874 | Elongate Springfly |
| Isogenoides frontalis Newman, 1838 | Hudsonian springfly |
| Isogenoides hansoni Ricker, 1952 | Appalachian Springfly |
| Isogenoides krumholzi (Ricker, 1952) | ⇒ Isogenoides doratus Frison, 1942 |
| Isogenoides olivacea Walker, 1852 | |
| Isogenoides olivaceus Walker, 1852 | Olive springfly |
| Isogenoides varians Walsh, 1862 | Rock Island Springfly |
| Isogenoides zionensis Hanson, 1949 | Zion Springfly |
| Isogenus (Chernokrilus) venustus (Jewett, 1965) | ⇒ Susulus venustus Jewett, 1965 |
| Isogenus alameda (Needham & Cl..., 1925) | ⇒ Baumannella alameda Needham & Cl..., 1925 |
| Isogenus clio (Newman, E.A., 1839) | ⇒ Clioperla clio Newman, 1839 |
| Isogenus colubrinus (Hagen, 1874) | ⇒ Isogenoides frontalis Newman, 1838 |
| Isogenus elongatus (Hagen, 1874) | ⇒ Isogenoides elongatus Hagen, 1874 |
| Isogenus hansoni (Ricker, 1952) | ⇒ Isogenoides hansoni Ricker, 1952 |
| Isogenus knowltoni Frison, 1937 | |
| Isogenus krumholzi (Ricker, 1952) | ⇒ Isogenoides doratus Frison, 1942 |
| Isogenus misnomus (Claassen, 1936) | ⇒ Chernokrilus misnomus Claassen, 1925 |
| Isogenus nonus (Needham & Cl..., 1925) | ⇒ Kogotus nonus Needham & Cl..., 1925 |
| Isogenus tostonus (Ricker, 1952) | ⇒ Cultus tostonus Ricker, 1952 |
| Isogenus yakimae (Hoppe, 1938) | ⇒ Osobenus yakimae Hoppe, 1938 |
| Isoperla acula Jewett, 1962 | Fresno Stripetail |
| Isoperla adunca Jewett, 1962 | Arroyo Stripetail |
| Isoperla arcana Beaty, Holla..., 2017 | Secret Stripetail |
| Isoperla baumanni Szczytko & S..., 1984 | California Stripetail |
| Isoperla bellona Banks, 1911 | Smokies Stripetail |
| Isoperla bifurcata Szczytko & S..., 1979 | Forked Stripetail |
| Isoperla bilineata Say, 1823 | Two-lined Stripetail |
| Isoperla borisi Beaty, Holla..., 2017 | Slate Belt Stripetail |
| Isoperla buresi Raušer, 1962 | |
| Isoperla burksi Frison, 1942 | Banded Stripetail |
| Isoperla catawba Szczytko & K..., 2015 | |
| Isoperla cherokee Szczytko & K..., 2015 | Hooked-spine Stripetail |
| Isoperla chickamauga Szczytko & K..., 2015 | |
| Isoperla citronella Newport, 1851 | Obscure Stripetail |
| Isoperla conspicua Frison, 1935 | Convoluted barbula moss |
| Isoperla cotta Ricker, 1952 | Haresfoot locoweed |
| Isoperla coushatta (Szczytko & S..., 1976) | ⇒ Isoperla davisi James, 1974 |
| Isoperla davisi James, 1974 | Alabama Stripetail |
| Isoperla decepta Frison, 1935 | Convoluted barbula moss |
| Isoperla decolorata Walker, 1852 | Bear Lake Stripetail |
| Isoperla denningi Jewett, 1955 | Angeles Stripetail |
| Isoperla dewalti Verdone & Ko..., 2017 | DeWalt Stripetail |
| Isoperla dicala Frison, 1942 | Sable Stripetail |
| Isoperla distincta Nelson, 1976 | Twisted Stripetail |
| Isoperla ebria (Hagen, 1874) | ⇒ Isoperla sobria Hagen, 1874 |
| Isoperla emarginata Harden & Mickel, 1952 | Crescent Stripetail |
| Isoperla evanescens Verdone & Ko..., 2016 | |
| Isoperla extensa Claassen, 1937 | |
| Isoperla fauschi Szczytko & K..., 2015 | Lumber Stripetail |
| Isoperla francesca Harper, 1971 | Northeaster Stripetail |
| Isoperla frisoni Illies, 1966 | Red sand verbena |
| Isoperla fulva Claassen, 1937 | Western Stripetail |
| Isoperla fusca Needham & Cl..., 1925 | Swamp loosestrife |
| Isoperla gibbsae Harper, 1971 | Pipevine |
| Isoperla grammatica (Poda, 1761) | ⇒ Isoperla luzoni Tierno de Fi..., 2005 |
| Isoperla gravitans Needham & Cl..., 1925 | Olympia Stripetail |
| Isoperla holochlora Klapálek, 1923 | Pale Stripetail |
| Isoperla irregularis Klapálek, 1923 | Texas Stripetail |
| Isoperla jamesae Grubbs & Szc..., 2010 | Natchez Trace Stripetail |
| Isoperla jewetti Szczytko & S..., 1976 | Grande Stripetail |
| Isoperla karuk Baumann & Lee, 2009 | |
| Isoperla katmaiensis Szczytko & S..., 1979 | Katmai Stripetail |
| Isoperla kirchneri Szczytko & K..., 2015 | Two-spine Stripetail |
| Isoperla lata Frison, 1942 | Dark Stripetail |
| Isoperla laucki Baumann & Lee, 2009 | Humboldt Stripetail |
| Isoperla lenati Szczytko & K..., 2015 | Little Stripetail |
| Isoperla longiseta Banks, 1906 | Plains Stripetail |
| Isoperla luzoni Tierno de Fi..., 2005 | |
| Isoperla major Nelson & Kon..., 1983 | Big Stripetail |
| Isoperla marlynia Needham & Cl..., 1925 | Midwestern Stripetail |
| Isoperla marmorata Needham & Cl..., 1925 | Red Stripetail |
| Isoperla maxana Harden & Mickel, 1952 | Minnesota Stripetail |
| Isoperla miwok Bottorff & S..., 1990 | Miwok Stripetail |
| Isoperla mohri (Frison, 1935) | ⇒ Isoperla irregularis Klapálek, 1923 |
| Isoperla montana Banks, 1898 | Montane Stripetail |
| Isoperla mormona Banks, 1920 | Mormon Stripetail |
| Isoperla muir (Szczytko & S..., 2004) | ⇒ Isoperla umpqua Szczytko & S..., 2013 |
| Isoperla myersi Szczytko & K..., 2015 | Paddle Stripetail |
| Isoperla namata Frison, 1942 | Ozark Stripetail |
| Isoperla nana Walsh, 1862 | Least Stripetail |
| Isoperla nelsoni Szczytko & K..., 2015 | Nelson Stripetail |
| Isoperla obscura Zetterstedt, 1840 | |
| Isoperla orata Frison, 1942 | Colorless Stripetail |
| Isoperla ouachita Stark & Stewart, 1973 | Ouachita Stripetail |
| Isoperla patricia (Frison, 1942) | ⇒ Isoperla quinquepunctata Banks, 1902 |
| Isoperla pauli Szczytko & K..., 2015 | Mt. Mitchell Stripetail |
| Isoperla petersoni Needham & Ch..., 1927 | Crosswort |
| Isoperla phalerata Needham, 1917 | Rockies Stripetail |
| Isoperla phaleratus Smith, 1917 | |
| Isoperla pinta Frison, 1937 | Checkered Stripetail |
| Isoperla poffi Szczytko & K..., 2015 | Pentagonal Stripetail |
| Isoperla powhatan Szczytko & K..., 2015 | Powhatan Stripetail |
| Isoperla pseudolata Szczytko & K..., 2015 | |
| Isoperla pseudornata Zhiltzova, 1988 | |
| Isoperla pseudosimilis Szczytko & K..., 2015 | Confusing Stripetail |
| Isoperla quinquepunctata Banks, 1902 | Fivespot Stripetail |
| Isoperla rainiera (Jewett, 1954) | ⇒ Isoperla rainieri Jewett, 1954 |
| Isoperla rainieri Jewett, 1954 | |
| Isoperla reesi Szczytko & K..., 2015 | Elk Garden Stripetail |
| Isoperla richardsoni Frison, 1935 | Convoluted barbula moss |
| Isoperla roguensis Szczytko & S..., 1984 | Florida flatcoil |
| Isoperla sagittata Szczytko & S..., 1976 | Arrowhead Stripetail |
| Isoperla sandbergi Szczytko & K..., 2015 | Cheaha Stripetail |
| Isoperla signata Banks, 1902 | Light brown stonefly |
| Isoperla similis Hagen, 1861 | Black Stripetail |
| Isoperla siouan Szczytko & K..., 2015 | Siouan Stripetail |
| Isoperla slossonae Banks, 1911 | Colorful Stripetail |
| Isoperla sobria Hagen, 1874 | Colorado Stripetail |
| Isoperla sordida Banks, 1906 | Notched Stripetail |
| Isoperla starki Szczytko & K..., 2015 | Wayah Stripetail |
| Isoperla stewarti Szczytko & K..., 2015 | Stewart Stripetail |
| Isoperla szczytkoi Poulton & St..., 1987 | Magazine Stripetail |
| Isoperla texana (Banks, 1914) | ⇒ Perlesta placida Hagen, 1861 |
| Isoperla tilasqua Szczytko & S..., 1979 | Oregon Stripetail |
| Isoperla tokula (Hoppe, 1938) | ⇒ Isoperla pinta Frison, 1937 |
| Isoperla transmarina Newman, 1838 | Boreal Stripetail |
| Isoperla trictura (Hoppe, 1938) | ⇒ Cascadoperla trictura Hoppe, 1938 |
| Isoperla truncata (Frison, 1937) | ⇒ Isoperla frisoni Illies, 1966 |
| Isoperla tutelo Szczytko & K..., 2015 | North Carolina Stripetail |
| Isoperla umpqua Szczytko & S..., 2013 | |
| Isoperla ventralis (Banks, 1908) | ⇒ Isoperla transmarina Newman, 1838 |
| Isoperla yuchi Szczytko & K..., 2015 | Yuchi Stripetail |
| Isoperla zuelligi Szczytko & K..., 2015 | Uwharrie Stripetail |
| Kogotus alameda (Needham & Cl..., 1925) | ⇒ Baumannella alameda Needham & Cl..., 1925 |
| Kogotus modesta Banks, 1908 | |
| Kogotus modestus Banks, 1908 | Sickle Springfly |
| Kogotus nona Needham & Cl..., 1925 | |
| Kogotus nonus Needham & Cl..., 1925 | Smooth Springfly |
| Malirekus hastatus Banks, 1920 | Brook Springfly |
| Malirekus iroquois Stark & Szcz..., 1988 | Iroquois Springfly |
| Megarcys irregularis Banks, 1900 | Rainier Springfly |
| Megarcys signata Hagen, 1874 | Larimide Springfly |
| Megarcys subtruncata Hanson, 1942 | Truncate Springfly |
| Megarcys watertoni Ricker, 1952 | Glacier Springfly |
| Megarcys yosemite Needham & Cl..., 1925 | Yosemite Springfly |
| Oconoperla innubila Needham & Cl..., 1925 | Hairy Springfly |
| Oconoperla weaveri (Stark & Stewart, 1982) | ⇒ Oconoperla innubila Needham & Cl..., 1925 |
| Oroperla barbara Needham, 1933 | Gilltail Springfly |
| Osobenus yakimae Hoppe, 1938 | Yakima Springfly |
| Perlinodes aurea (Smith, L.W., 1917) | ⇒ Perlinodes aureus Smith, 1917 |
| Perlinodes aureus Smith, 1917 | Longgill Springfly |
| Perlodes slossonae (Banks, 1914) | ⇒ Arcynopteryx dichroa McLachlan, 1872 |
| Perlodes tibialis (Banks, 1914) | ⇒ Setvena tibialis Banks, 1914 |
| Pictetiella expansa Banks, 1920 | Autumn Springfly |
| Pictetiella lechleitneri Stark & Kond..., 2004 | Talol Springfly |
| Remenus bilobatus Needham & Cl..., 1925 | Lash Springfly |
| Remenus daniellae Verdone & Ko..., 2018 | Danielle's Springfly |
| Remenus duffieldi Nelson & Kon..., 1995 | Georgia Springfly |
| Remenus kirchneri Kondratieff ..., 1995 | Blue Ridge Springfly |
| Rickera sorpta Needham & Cl..., 1925 | Palestripe Springfly |
| Salmoperla sylvanica Baumann & Lauck, 1987 | Bighead Springfly |
| Setvena bradleyi Smith, 1917 | Alberta Springfly |
| Setvena tibialis Banks, 1914 | Olympic Springfly |
| Setvena wahkeena Stewart & St..., 1985 | Wahkeena Springfly |
| Skwala americana Klapálek, 1912 | American Springfly |
| Skwala compacta McLachlan, 1872 | Holarctic Springfly |
| Skwala curvata Hanson, 1942 | Curved Springfly |
| Skwala parallela (Frison, 1936) | ⇒ Skwala americana Klapálek, 1912 |
| Susulus venustus Jewett, 1965 | Beautiful Springfly |
| Yugus arina Frison, 1942 | |
| Yugus arinus Frison, 1942 | Highlands Springfly |
| Yugus bulbosa Frison, 1942 | |
| Yugus bulbosus Frison, 1942 | Greenbrier Springfly |
| Yugus kirchneri Nelson, 2001 | Frogtown Springfly |
| Yugus kondratieffi Nelson, 2001 | Watauga Springfly |
