| Palaeagapetus flexus T Ito, 1991 | |
| Palaeagapetus kyushuensis T Ito & N Ku..., 1997 | |
| Palaeagapetus ovatus T Ito & T Ha..., 1986 | |
| Palaeagapetus parvus T Ito, 1992 | |
| Palaeagapetus shikokuensis Y Utsunomiya..., 1997 | |
| Ptilocolepus atiloma F Schmid, 1991 | |
| Ptilocolepus namnao H Malicky & ..., 1996 | |
| Rhyacophila (Doliocypta) argentipunctella DE Kimmins, 1955 | |
| Rhyacophila (Doliocypta) scissa KJ Morton, 1900 | Threebract loosestrife |
| Rhyacophila scissa niyampa Schmid, 1970 | |
| Rhyacophila (Hyporhyacophila) philopotamoides R McLachlan, 1879 | Threebract loosestrife |
| Rhyacophila (Rhyacophila) anatina KJ Morton, 1900 | |
| Rhyacophila (Rhyacophila) falcifera F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila (Rhyacophila) fasciata HA Hagen, 1859 | Wallflower |
| Rhyacophila (Rhyacophila) fuscula Walker, 1852 | |
| Rhyacophila (Rhyacophila) nubila JW Zetterstedt, 1840 | Lighthouse flaxflower |
| Rhyacophila (Trichophila) articulata KJ Morton, 1900 | |
| Rhyacophila (Trichophila) cameroni Banks, 1931 | |
| Rhyacophila (Trichophila) curvata KJ Morton, 1900 | |
| Rhyacophila (Trichophila) hingstoni AV Martynov, 1930 | |
| Rhyacophila (Trichophila) hobsoni AV Martynov, 1930 | |
| Rhyacophila (Trichophila) mishmica DE Kimmins, 1953 | Bitter root |
| Rhyacophila (Trichophila) mortoni (DE Kimmins, 1953) | ⇒ Rhyacophila curvata KJ Morton, 1900 |
| Rhyacophila (Trichophila) parva DE Kimmins, 1953 | Bitter root |
| Rhyacophila parva mukpo Schmid, 1970 | |
| Rhyacophila (Trichophila) perdita Banks, 1938 | |
| Rhyacophila (Trichophila) putata DE Kimmins, 1953 | Bitter root |
| Rhyacophila putata temba Schmid, 1970 | |
| Rhyacophila (Trichophila) scotina DE Kimmins, 1953 | Bitter root |
| Rhyacophila acanthoida | |
| Rhyacophila acraliodonta C Sun, 1995 | |
| Rhyacophila ainola H Malicky, 1989 | |
| Rhyacophila aithra H Malicky, 1997 | |
| Rhyacophila alticola DE Kimmins, 1953 | Bitter root |
| Rhyacophila altoincisiva C Hwang, 1957 | |
| Rhyacophila amblyodonta C Sun & L Yang, 1999 | |
| Rhyacophila anakbatukau H Malicky, 1995 | |
| Rhyacophila anakbuah H Malicky, 1995 | |
| Rhyacophila anakdjeram H Malicky, 1995 | |
| Rhyacophila anaksungai H Malicky, 1995 | |
| Rhyacophila anaktiongkok H Malicky, 1995 | |
| Rhyacophila ancestralis AV Martynov, 1935 | |
| Rhyacophila angden F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila annulicornis DE Kimmins, 1953 | Bitter root |
| Rhyacophila antiope H Malicky, 1997 | |
| Rhyacophila apicalis DE Kimmins, 1953 | Bitter root |
| Rhyacophila armitageorum MS Saini & K..., 2012 | |
| Rhyacophila asahiensis M Kobayashi, 1976 | |
| Rhyacophila assimilis DE Kimmins, 1953 | Bitter root |
| Rhyacophila atomaria L Navas, 1936 | |
| Rhyacophila aureomaculata F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila aureostigma F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila avicularis DE Kimmins, 1953 | Bitter root |
| Rhyacophila azumaensis M Kobayashi, 1973 | |
| Rhyacophila baibarana S Matsumura, 1931 | |
| Rhyacophila balangshana H Malicky, 1995 | |
| Rhyacophila banra J Olah, 1987 | |
| Rhyacophila bhotia F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila bhuchanadhara F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila bicolor DE Kimmins, 1953 | Bitter root |
| Rhyacophila bicolor doiangka Malicky, 1999 | |
| Rhyacophila bicostata C Sun & L Yang, 1995 | |
| Rhyacophila bidens DE Kimmins, 1953 | Bitter root |
| Rhyacophila bifida DE Kimmins, 1953 | Bitter root |
| Rhyacophila bilobata Ulmer, 1907 | Dill |
| Rhyacophila bisbifida | |
| Rhyacophila bivitta C Sun, 1997 | |
| Rhyacophila blenda H Malicky & ..., 1993 | |
| Rhyacophila brechlini W Mey, 1998 | |
| Rhyacophila brevicephala M Iwata, 1927 | Bahama flatcoil |
| Rhyacophila burmana DE Kimmins, 1953 | Bitter root |
| Rhyacophila castanea HA Hagen, 1858 | |
| Rhyacophila cataractae W Mey, 1998 | |
| Rhyacophila celata C Sun & L Yang, 1999 | |
| Rhyacophila chakungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chamolungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chandragoupta F Schmid, 1959 | |
| Rhyacophila chandzo F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila changpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chayulpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chayulpa ringmo Schmid, 1970 | |
| Rhyacophila chayulpa tsetangpa Schmid, 1970 | |
| Rhyacophila chematangpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chembo F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chembo lartsepa Schmid, 1970 | |
| Rhyacophila chenmo F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chimdro F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chitre SI Melnitsky, 2005 | |
| Rhyacophila chomoyuma F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila choprai AV Martynov, 1935 | |
| Rhyacophila chugalungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chulukpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chumikpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila chungse F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila churongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila claviforma C Sun & L Yang, 1998 | |
| Rhyacophila clemens M Tsuda, 1940 | |
| Rhyacophila coclearis LP Hsu & CS ..., 1996 | |
| Rhyacophila complanata L Tian & Y Li, 1986 | |
| Rhyacophila confissa L Botosaneanu, 1970 | |
| Rhyacophila contorta C Sun & L Yang, 1995 | |
| Rhyacophila coreana M Tsuda, 1940 | |
| Rhyacophila cornuta DE Kimmins, 1953 | Bitter root |
| Rhyacophila crassa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila crispa C Sun & L Yang, 1998 | |
| Rhyacophila cruciata KH Forsslund, 1935 | |
| Rhyacophila cuneata C Sun & L Yang, 1999 | |
| Rhyacophila curtior F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila dactyloidis C Sun & L Yang, 1995 | |
| Rhyacophila dafla F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila dakshi F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila davao HH Ross, 1950 | |
| Rhyacophila dgaldanpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila diffidens M Tsuda, 1940 | |
| Rhyacophila dikkaravasini F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila dilatata AV Martynov, 1935 | |
| Rhyacophila dirangpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila discoidalis DE Kimmins, 1953 | Bitter root |
| Rhyacophila divaricata DE Kimmins, 1953 | Bitter root |
| Rhyacophila dolingpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila dolokana H Malicky, 1978 | |
| Rhyacophila dongkyapa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila dongre F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila donoana H Malicky, 1978 | |
| Rhyacophila dorje F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila drokpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila drokpa gurla Schmid, 1970 | |
| Rhyacophila drokpa nyenpa Schmid, 1970 | |
| Rhyacophila drosampa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila drotangpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila dumogana A Neboiss & ..., 1988 | |
| Rhyacophila elongata DE Kimmins, 1953 | Bitter root |
| Rhyacophila esorima W Mey, 1996 | |
| Rhyacophila euryphylla C Sun & L Yang, 1999 | |
| Rhyacophila excavata AV Martynov, 1909 | Redwhisker clammyweed |
| Rhyacophila exilis C Sun & L Yang, 1999 | |
| Rhyacophila falita HH Ross, 1956 | Green wild indigo |
| Rhyacophila fansipana W Mey, 1998 | |
| Rhyacophila flaviventris DE Kimmins, 1953 | Bitter root |
| Rhyacophila fletcheri DE Kimmins, 1952 | |
| Rhyacophila flinti F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila formosae M Iwata, 1928 | |
| Rhyacophila formosana Ulmer, 1927 | |
| Rhyacophila furca C Hwang & L ..., 1982 | |
| Rhyacophila gelukpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila grahami Banks, 1940 | |
| Rhyacophila gyaldzen F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila gyamo F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila gyaspa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila gyelbu F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila hamifera DE Kimmins, 1953 | Bitter root |
| Rhyacophila hamosa C Sun, 1995 | |
| Rhyacophila hangnia J Olah, 1987 | |
| Rhyacophila haplostephana C Sun & L Yang, 1998 | |
| Rhyacophila hayachiensis Kobayashi, 1976 | |
| Rhyacophila hayakawai M Kobayashi, 1969 | |
| Rhyacophila hippocrepica (C Sun & L Yang, 1995) | ⇒ Rhyacophila malayana Banks, 1931 |
| Rhyacophila hoabinha J Olah, 1987 | |
| Rhyacophila hoangliensis W Mey, 1998 | |
| Rhyacophila hokkaidensis M Iwata, 1927 | Bahama flatcoil |
| Rhyacophila hollosii O Kiss, 2011 | |
| Rhyacophila horvathmargiti O Kiss, 2011 | |
| Rhyacophila hreblayi O Kiss, 2003 | |
| Rhyacophila hydaspica F Schmid, 1959 | |
| Rhyacophila immaculata W Mey, 1996 | |
| Rhyacophila inaequalis DG Denning &..., 1971 | |
| Rhyacophila inconspicua KJ Morton, 1900 | |
| Rhyacophila incudis W Mey, 1996 | |
| Rhyacophila ishihanaensis M Kobayashi, 1984 | |
| Rhyacophila isolata Banks, 1934 | |
| Rhyacophila itoi M Tsuda & T ..., 1967 | |
| Rhyacophila janosi J Olah, 1987 | |
| Rhyacophila javana Ulmer, 1951 | |
| Rhyacophila jayadurga F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila jigme F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila jirisana M Kobayashi, 1989 | |
| Rhyacophila kadampa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kadaphes F Schmid, 1959 | |
| Rhyacophila kadphises F Schmid, 1959 | |
| Rhyacophila kagyupa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kando F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kando rengma Schmid, 1970 | |
| Rhyacophila kangjongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kanichka F Schmid, 1959 | |
| Rhyacophila karpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kashongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kawachenpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kawamurae (M Tsuda, 1940) | ⇒ Rhyacophila manuleata AV Martynov, 1934 |
| Rhyacophila kawaraboensis M Kobayashi, 1976 | |
| Rhyacophila kedara F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila khamakhya F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila khasiorum F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila khimbarpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila khiympa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kimminsi (HH Ross, 1956) | ⇒ Rhyacophila kimminsiana L Botosaneanu, 1958 |
| Rhyacophila kimminsiana L Botosaneanu, 1958 | |
| Rhyacophila kisoensis M Tsuda, 1940 | |
| Rhyacophila kisszoltani O Kiss, 2013 | |
| Rhyacophila kiyosumiensis RB Kuranishi, 1990 | |
| Rhyacophila kiyrongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kohnoae HH Ross, 1956 | Green wild indigo |
| Rhyacophila krauskasseggae H Malicky, 1978 | |
| Rhyacophila kubra F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kumgangsanica K Kumanski, 1990 | |
| Rhyacophila kunma F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kuramana M Tsuda, 1942 | |
| Rhyacophila kusang F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kuwayamai F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kyadongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kyimdongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila kyungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila labeculata DE Kimmins, 1953 | Bitter root |
| Rhyacophila lakatosi O Kiss, 2011 | |
| Rhyacophila lambakanta F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila langdarma F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila laptsapa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila ledra HH Ross, 1939 | Gopherweed |
| Rhyacophila lepcha F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila lezeyi L Navas, 1933 | |
| Rhyacophila lhabu F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila lhadzongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila lhakpa Schmid, 1970 | Threebract loosestrife |
| Rhyacophila lhopa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila lieftincki Ulmer, 1951 | |
| Rhyacophila ligifera DE Kimmins, 1953 | Bitter root |
| Rhyacophila liliputana Banks, 1939 | |
| Rhyacophila lobsang F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila longicuspis C Sun, 1995 | |
| Rhyacophila longistyla C Sun & L Yang, 1995 | |
| Rhyacophila lonpo F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila macrorrhiza C Sun & L Yang, 1995 | |
| Rhyacophila madalensis LP Hsu & CS ..., 1996 | |
| Rhyacophila magnahamata LP Hsu & CS ..., 1996 | |
| Rhyacophila mahunkai J Olah, 1987 | |
| Rhyacophila maitripa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila makiensis M Kobayashi, 1987 | |
| Rhyacophila malayana Banks, 1931 | |
| Rhyacophila manicata DE Kimmins, 1953 | Bitter root |
| Rhyacophila manipuri F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila manlungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila manna H Malicky & ..., 1993 | |
| Rhyacophila manuleata AV Martynov, 1934 | James' clammyweed |
| Rhyacophila marcida Banks, 1947 | |
| Rhyacophila marpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila mayaensis M Kobayashi, 1973 | |
| Rhyacophila mayestril H Malicky, 1992 | |
| Rhyacophila melanippe H Malicky, 2007 | |
| Rhyacophila melli Ulmer, 1926 | Bur chervil |
| Rhyacophila merangirana (H Malicky, 1978) | ⇒ Rhyacophila dolokana H Malicky, 1978 |
| Rhyacophila milarepa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila mimiclaviforma C Sun & L Yang, 1998 | |
| Rhyacophila minoyamaensis M Kobayashi, 1973 | |
| Rhyacophila minuta Banks, 1939 | |
| Rhyacophila mjohjangsanica L Botosaneanu, 1970 | |
| Rhyacophila mnemosyne H Malicky, 2007 | |
| Rhyacophila monyulpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila motakanta F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila motasi L Botosaneanu, 1957 | |
| Rhyacophila mroczkowskii L Botosaneanu, 1970 | |
| Rhyacophila muktepa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila multispinomera C Sun & L Yang, 1998 | |
| Rhyacophila murhu H Malicky & ..., 1989 | |
| Rhyacophila nabochepa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila naga F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nagaokaensis M Kobayashi, 1976 | |
| Rhyacophila nagongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nakagawai M Kobayashi, 1969 | |
| Rhyacophila nakpo F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila namgyal F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nandori O Kiss, 2003 | |
| Rhyacophila nanpingensis C Sun & L Yang, 1998 | |
| Rhyacophila narayani F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila naviculata KJ Morton, 1900 | |
| Rhyacophila negrosana W Mey, 1998 | |
| Rhyacophila nephroida C Sun & L Yang, 1998 | |
| Rhyacophila netongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila ngawang F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila ngorpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila ngulpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nigra AV Martynov, 1930 | |
| Rhyacophila nigrocephala M Iwata, 1927 | Bahama flatcoil |
| Rhyacophila nigrorosea F Schmid, 1959 | |
| Rhyacophila niizakiensis M Kobayashi, 1976 | |
| Rhyacophila nipponica L Navas, 1933 | |
| Rhyacophila niwae (M Iwata, 1927) | ⇒ Rhyacophila bilobata Ulmer, 1907 |
| Rhyacophila noeibia H Malicky & ..., 1993 | |
| Rhyacophila norbu F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nyamangpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nyelungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nyerongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nyerpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila nyukmadongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila obscura AV Martynov, 1927 | Large clammyweed |
| Rhyacophila okuihana W Mey, 1996 | |
| Rhyacophila orientalis (DE Kimmins, 1953) | ⇒ Rhyacophila philopotamoides R McLachlan, 1879 |
| Rhyacophila orthacantha J Emoto, 1979 | |
| Rhyacophila pacata M Tsuda, 1940 | |
| Rhyacophila paratecta W Mey, 1996 | |
| Rhyacophila parilis W Mey, 1998 | |
| Rhyacophila paurava F Schmid, 1959 | |
| Rhyacophila pemba F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila pepingensis Ulmer, 1932 | |
| Rhyacophila peripenis C Sun & L Yang, 1998 | |
| Rhyacophila petersorum F Schmid & D..., 1971 | |
| Rhyacophila pieli L Navas, 1933 | |
| Rhyacophila poba F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila polha F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila porntipae H Malicky, 1987 | |
| Rhyacophila procliva DE Kimmins, 1953 | Bitter root |
| Rhyacophila pyrrha H Malicky, 2007 | |
| Rhyacophila quadrifida C Sun & L Yang, 1995 | |
| Rhyacophila quana (H Malicky & ..., 1989) | ⇒ Rhyacophila malayana Banks, 1931 |
| Rhyacophila ramingwongi H Malicky, 1987 | |
| Rhyacophila ranga J Olah, 1987 | |
| Rhyacophila relegata F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila rhombica AV Martynov, 1935 | |
| Rhyacophila riedeliana L Botosaneanu, 1970 | |
| Rhyacophila rima C Sun & L Yang, 1995 | |
| Rhyacophila rongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila ructicna H Malicky, 1993 | |
| Rhyacophila sajadi MS Saini & K..., 2012 | |
| Rhyacophila sakyapa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila sanglungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila satoi RB Kuranishi, 1997 | |
| Rhyacophila sauwana H Malicky, 1995 | |
| Rhyacophila schismatica C Sun & L Yang, 1995 | |
| Rhyacophila schmidi HH Ross, 1969 | |
| Rhyacophila scissoides DE Kimmins, 1953 | Bitter root |
| Rhyacophila scissoides thailandica Schmid, 1970 | |
| Rhyacophila senggepa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila shakangpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila shekigawana M Kobayashi, 1973 | |
| Rhyacophila sherchokpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila sherpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila shikotsuensis M Iwata, 1927 | Bahama flatcoil |
| Rhyacophila shingripa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila shiraishiensis M Kobayashi, 1971 | |
| Rhyacophila shresthai H Malicky, 2004 | |
| Rhyacophila sikungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila similis (AV Martynov, 1935) | ⇒ Rhyacophila shikotsuensis M Iwata, 1927 |
| Rhyacophila sinensis AV Martynov, 1931 | Large clammyweed |
| Rhyacophila singularis L Botosaneanu, 1970 | |
| Rhyacophila sinuata DE Kimmins, 1953 | Bitter root |
| Rhyacophila siposi O Kiss, 2013 | |
| Rhyacophila soldani W Mey, 1989 | |
| Rhyacophila spinalis AV Martynov, 1930 | |
| Rhyacophila spinosellata W Mey, 1995 | |
| Rhyacophila steinmanni O Kiss, 2013 | |
| Rhyacophila stenostyla AV Martynov, 1930 | |
| Rhyacophila styligera DE Kimmins, 1953 | Bitter root |
| Rhyacophila sumatrana (Ulmer, 1930) | ⇒ Rhyacophila curvata KJ Morton, 1900 |
| Rhyacophila sumdopa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila suthepensis (H Malicky, 1987) | ⇒ Rhyacophila curvata KJ Morton, 1900 |
| Rhyacophila szaboi O Kiss, 2013 | |
| Rhyacophila szeptyckii H Malicky, 1993 | |
| Rhyacophila tachikawana M Kobayashi, 1973 | |
| Rhyacophila tamdaoensis H Malicky, 1995 | |
| Rhyacophila tamdaona J Olah, 1987 | |
| Rhyacophila tantichodoki H Malicky & ..., 1993 | |
| Rhyacophila tarkiya F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tashepa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tashidingpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tecta KJ Morton, 1900 | |
| Rhyacophila tenebrosa W Mey, 1998 | |
| Rhyacophila tengyelingpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila ternifolia C Sun & L Yang, 1995 | |
| Rhyacophila tetracantha C Sun & L Yang, 1995 | |
| Rhyacophila tetraphylla C Sun & L Yang, 1995 | |
| Rhyacophila tibori O Kiss, 2003 | |
| Rhyacophila tolungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tongmuensis | |
| Rhyacophila tonneri W Mey, 1989 | |
| Rhyacophila tosagan H Malicky & ..., 1993 | |
| Rhyacophila transquilla M Tsuda, 1940 | |
| Rhyacophila trashipa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila triangularis F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tridentata L Tian & Y Li, 1986 | |
| Rhyacophila triloba C Hwang, 1958 | |
| Rhyacophila trinacriformis L Tian & Y Li, 1986 | |
| Rhyacophila trulungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila truncata DE Kimmins, 1953 | Bitter root |
| Rhyacophila tsering F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tshiringpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tshogpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tsiudmarpo F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tsona F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tsongkhapa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tsudai HH Ross, 1956 | Green wild indigo |
| Rhyacophila tsusimaensis M Kobayashi, 1985 | |
| Rhyacophila tukuche SI Melnitsky, 2005 | |
| Rhyacophila tungkorpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila tungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila uchidai M Kobayashi, 1989 | |
| Rhyacophila ugyenpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila ulmeri L Navas, 1907 | Cliff dwarf-primrose |
| Rhyacophila uncata DE Kimmins, 1953 | Bitter root |
| Rhyacophila ungulata DE Kimmins, 1953 | Bitter root |
| Rhyacophila vajoni O Kiss, 2011 | |
| Rhyacophila vargai O Kiss, 2003 | |
| Rhyacophila verecunda M Tsuda, 1940 | |
| Rhyacophila vernestril W Mey, 1996 | |
| Rhyacophila verugia H Malicky & ..., 1993 | |
| Rhyacophila vicina L Botosaneanu, 1970 | |
| Rhyacophila voccia H Malicky & ..., 1993 | |
| Rhyacophila wangpo F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila wanichacheewai H Malicky, 1987 | |
| Rhyacophila wolongensis H Malicky, 1995 | |
| Rhyacophila wuyanensis C Sun & L Yang, 1998 | |
| Rhyacophila wuyiensis C Sun & L Yang, 1995 | |
| Rhyacophila xayide H Malicky & ..., 1989 | |
| Rhyacophila yamanakensis M Iwata, 1927 | Bahama flatcoil |
| Rhyacophila yamazakii M Tsuda, 1941 | |
| Rhyacophila yarlungpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila yigrongpa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila yipung F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila yishepa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila yonggyapa F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila yora H Malicky, 1989 | |
| Rhyacophila yoshinensis M Tsuda & T ..., 1967 | |
| Rhyacophila yosiiana M Tsuda, 1940 | |
| Rhyacophila yukii M Tsuda, 1942 | |
| Rhyacophila yullha F Schmid, 1970 | Threebract loosestrife |
| Rhyacophila zhungpa F Schmid, 1970 | Threebract loosestrife |
