| Alloperla acadiana Harper, 1984 | Brunswick Sallfly |
| Alloperla acietata Zapekina-Dul..., 1975 | |
| Alloperla alexanderi (Nelson, C.H...., 1968) | ⇒ Alloperla mediata Navas, 1925 |
| Alloperla aracoma Harper & Kir..., 1978 | Aracoma Sallfly |
| Alloperla atlantica Baumann, 1974 | Atlantic Sallfly |
| Alloperla banksi Frison, 1942 | Tufted sallfly |
| Alloperla biserrata Nelson & Kon..., 1980 | Dusky Sallfly |
| Alloperla borealis (Banks, 1895) | ⇒ Sweltsa borealis Banks, 1895 |
| Alloperla caddo Poulton & St..., 1987 | Caddo Sallfly |
| Alloperla caudata Frison, 1934 | Ozark Sallfly |
| Alloperla chandleri Jewett, 1954 | Mariposa Sallfly |
| Alloperla chloris Frison, 1934 | Triangular Sallfly |
| Alloperla clarki Grubbs & Bau..., 2019 | |
| Alloperla concolor (Ricker, 1935) | ⇒ Alloperla neglecta Frison, 1935 |
| Alloperla continua (Banks, 1911) | ⇒ Sweltsa continua Banks, 1911 |
| Alloperla cydippe Newman, 1839 | |
| Alloperla delicata Frison, 1935 | Convoluted barbula moss |
| Alloperla deminuta Zapekina-Dul..., 1970 | |
| Alloperla dubia (Frison, 1935) | ⇒ Suwallia dubia Frison, 1935 |
| Alloperla elevata (Frison, 1935) | ⇒ Alloperla severa Hagen, 1861 |
| Alloperla erectospina Wu, 1938 | |
| Alloperla fidelis (Banks, 1920) | ⇒ Sweltsa fidelis Banks, 1920 |
| Alloperla forcipata Neave, 1929 | |
| Alloperla fraterna Frison, 1935 | Cascades Sallfly |
| Alloperla furcula Surdick, 1981 | Blackwater Sallfly |
| Alloperla hamata Surdick, 1981 | Barbed Sallfly |
| Alloperla idei Ricker, 1935 | Vernal Sallfly |
| Alloperla imbecilla Say, 1823 | Little green stonefly |
| Alloperla imbecillai | Ohio Sallfly |
| Alloperla ishikariana Kohno, 1953 | |
| Alloperla joosti Zwick, 1972 | |
| Alloperla kurentzovi Zhiltzova & ..., 1977 | |
| Alloperla kurilensis Zhiltzova, 1978 | |
| Alloperla lateralis (Banks, 1911) | ⇒ Sweltsa lateralis Banks, 1911 |
| Alloperla lenati Kondratieff ..., 2004 | Sandhill Sallfly |
| Alloperla leonarda Ricker, 1952 | Haresfoot locoweed |
| Alloperla mediana (Banks, 1911) | ⇒ Sweltsa mediana Banks, 1911 |
| Alloperla mediata Navas, 1925 | |
| Alloperla medveda Ricker, 1952 | Beartooth Sallfly |
| Alloperla nanina Banks, 1911 | Swannanoa Sallfly |
| Alloperla natchez Surdick & Stark, 1980 | Natchez Sallfly |
| Alloperla neglecta Frison, 1935 | Convoluted barbula moss |
| Alloperla nipponica (Okamoto, 1912) | ⇒ Suwallia nipponica Okamoto, 1912 |
| Alloperla ouachita Stark & Stewart, 1983 | Ouachita Sallfly |
| Alloperla pagmanensis Kawai, 1966 | |
| Alloperla pallidula (Banks, 1904) | ⇒ Suwallia pallidula Banks, 1904 |
| Alloperla petasata Surdick, 2004 | Woodland sallfly |
| Alloperla picta Zwick, 1973 | |
| Alloperla pilosa Needham & Cl..., 1925 | Hairy Sallfly |
| Alloperla pintada (Ricker, 1952) | ⇒ Triznaka pintada Ricker, 1952 |
| Alloperla prognoides Surdick, 2004 | Swallow Sallfly |
| Alloperla roberti ♰ Surdick, 1981 | Illinois Sallfly |
| Alloperla rostellata Klapálek, 1923 | |
| Alloperla sapporensis Okamoto, 1912 | |
| Alloperla serrata Needham & Cl..., 1925 | Sawtooth Sallfly |
| Alloperla severa Hagen, 1861 | Western Sallfly |
| Alloperla stipitata Surdick, 2004 | Blue Ridge Sallfly |
| Alloperla tamalpa (Ricker, 1952) | ⇒ Sweltsa tamalpa Ricker, 1952 |
| Alloperla thalia (Ricker, 1952) | ⇒ Alloperla severa Hagen, 1861 |
| Alloperla thompsoni Nelson & Hanson, 1968 | |
| Alloperla tiunovae Teslenko, 2009 | |
| Alloperla townesi (Ricker, 1952) | ⇒ Sweltsa townesi Ricker, 1952 |
| Alloperla townsi | |
| Alloperla trapezia Navas, 1930 | |
| Alloperla urticae (Ricker, 1952) | ⇒ Sweltsa urticae Ricker, 1952 |
| Alloperla usa Ricker, 1952 | Appalachian Sallfly |
| Alloperla voinae Ricker, 1947 | Kokrines locoweed |
| Alloperla vostoki Ricker, 1947 | Kokrines locoweed |
| Alloperla yangi Li & Wang, 2011 | |
| Bisancora pastina Jewett, 1962 | Antelope Sallfly |
| Bisancora rutriformis Surdick, 1981 | Scooped Sallfly |
| Sasquaperla hoopa Stark & Baumann, 2001 | Bigfoot Sallfly |
| Sweltsa abdominalis Okamoto, 1912 | |
| Sweltsa adamantea Surdick, 1995 | Washington Sallfly |
| Sweltsa albertensis Needham & Cl..., 1925 | Alberta Sallfly |
| Sweltsa assam Zwick, 1971 | |
| Sweltsa baiyunshana Li, Yang & Yao, 2014 | |
| Sweltsa bicurvata Li & Li, 2021 | |
| Sweltsa bilobata Mo, Ye, Wang..., 2020 | |
| Sweltsa borealis Banks, 1895 | Boreal Sallfly |
| Sweltsa brevihamula Dong, Cui & Li, 2018 | |
| Sweltsa californica Jewett, 1965 | Chico Sallfly |
| Sweltsa coloradensis Banks, 1898 | Colorado Sallfly |
| Sweltsa colorata (Zhiltzova & ..., 1978) | ⇒ Ostrovus nikkoensis Okamoto, 1912 |
| Sweltsa continua Banks, 1911 | Gabriel Sallfly |
| Sweltsa cristata Surdick, 1995 | Crested Sallfly |
| Sweltsa durfeei Kondratieff ..., 2009 | Lolo Sallfly |
| Sweltsa exquisita Frison, 1935 | Exquisite Sallfly |
| Sweltsa fidelis Banks, 1920 | Mountain Sallfly |
| Sweltsa gaufini Baumann, 1973 | Utah Sallfly |
| Sweltsa hamula Chen & Y.Du, 2017 | |
| Sweltsa hoffmani Kondratieff ..., 2009 | Plateau Sallfly |
| Sweltsa holstonensis Kondratieff ..., 1998 | Holston Sallfly |
| Sweltsa hondo Baumann & Ja..., 1984 | Taos Sallfly |
| Sweltsa illiesi Zhiltzova & ..., 1978 | |
| Sweltsa insularis Zhiltzova, 1978 | |
| Sweltsa kibunensis Kawai, 1967 | |
| Sweltsa lamba Needham & Cl..., 1925 | Rheocrene Sallfly |
| Sweltsa lateoblonga Rehman, Du &..., 2022 | |
| Sweltsa lateralis Banks, 1911 | Curved Sallfly |
| Sweltsa lepnevae Zhiltzova, 1977 | |
| Sweltsa ligula Rehman, Huo ..., 2022 | |
| Sweltsa liupanshana Rehman, Du &..., 2022 | |
| Sweltsa longistyla Wu, 1938 | |
| Sweltsa lyrata Stark & Baumann, 2018 | |
| Sweltsa mediana Banks, 1911 | Carolina Sallfly |
| Sweltsa mogollonica Stark & Baumann, 2018 | |
| Sweltsa naica Provancher, 1876 | Northeastern Sallfly |
| Sweltsa nikkoensis Okamoto, 1912 | |
| Sweltsa occidens Frison, 1937 | Alpine Sallfly |
| Sweltsa onkos Ricker, 1935 | Ontario Sallfly |
| Sweltsa oregonensis Frison, 1935 | Oregon Sallfly |
| Sweltsa pacifica Banks, 1895 | Pacific Sallfly |
| Sweltsa palearata Surdick, 2004 | Shenandoah Sallfly |
| Sweltsa pisteri Bottorff & B..., 1997 | Coastal Sallfly |
| Sweltsa pocahontas Kirchner & K..., 1988 | Pocahontas Sallfly |
| Sweltsa recurvata Wu, 1938 | |
| Sweltsa resima Surdick, 1995 | California Sallfly |
| Sweltsa revelstoka Jewett, 1955 | Canadian Sallfly |
| Sweltsa salix Lee & Baumann, 2010 | Willow Sallfly |
| Sweltsa shibakawae Okamoto, 1912 | |
| Sweltsa tamalpa Ricker, 1952 | Tamalpais Sallfly |
| Sweltsa tibetensis Li, Weihai, ..., 2017 | |
| Sweltsa townesi Ricker, 1952 | Dardanelle Sallfly |
| Sweltsa umbonata Surdick, 1995 | Shasta Sallfly |
| Sweltsa urticae Ricker, 1952 | Nettle Sallfly |
| Sweltsa voshelli Kondratieff ..., 1991 | Virginia Sallfly |
| Sweltsa wui Stark & Sivec, 2009 | |
| Sweltsa yunnan Tierno de Fi..., 2002 | |
| Sweltsa yurok Stark & Baumann, 2007 | Yurok Sallfly |
| Sweltsa zhejiangensis Li & Wang, 2021 | |
| Sweltsa zhiltzovae Zwick, 2010 | |
