Family Hydroptilidae
- Genus Acostatrichia Mosely 1939
- Acostatrichia plaumanni Mosely 1939
- Acostatrichia simulans Mosely 1939
- Genus Alisotrichia Flint 1964
- Alisotrichia benji Rueda Martín 2011
- Alisotrichia cainguas Angrisano & Sganga 2009
- Alisotrichia gabriel Angrisano & Burgos 2002
- Genus Anchitrichia Flint 1970
- Anchitrichia trifurcata Angrisano 1984
- Genus Angrisanoia Özdikmen 2008
- Angrisanoia acuti (Angrisano & Sganga 2009)
- Angrisanoia cebollati (Angrisano 1995)
- Genus Ascotrichia Flint 1983
- Ascotrichia frontalis Flint 1983
- Genus Betrichia Mosely 1939
- Betrichia argentinica Flint 1972
- Betrichia uruguayensis Angrisano 1995
- Betrichia zilbra Mosely 1939
- Genus Bredinia Flint 1968
- Bredinia alza Harris, Holzenthal & Flint 2002
- Genus Celaenotrichia Mosely 1934
- Celaenotrichia edwardsi Mosely 1934
- Genus Costatrichia Mosely 1937
- Costatrichia hamulifera (Flint 1983)
- Costatrichia noite Angrisano 1995
- Genus Flintiella Angrisano 1995
- Flintiella andreae Angrisano 1995
- Genus Hydroptila Dalman 1819
- Hydroptila argentinica Flint 1983
- Hydroptila bidens Flint 1983
- Hydroptila catamarcensis Flint 1983
- Hydroptila coscaroni Flint 1983
- Hydroptila producta Mosely 1939
- Hydroptila pulestoni Flint 1980
- Hydroptila sauca Flint 1980
- Genus Ithytrichia Eaton 1873
- Ithytrichia ferni Rueda Martín 2006
- Genus Leucotrichia Mosely 1934
- Leucotrichia alisensis Rueda Martín 2011
- Leucotrichia lerma Angrisano & Burgos 2002
- Leucotrichia yungarum Angrisano & Burgos 2002
- Genus Metrichia Ross 1938
- Metrichia argentinica Schmid 1958
- Metrichia bidentata (Flint 1983)
- Metrichia bulbosa (Jacquemart 1963)
- Metrichia cuniapiru Angrisano 2005
- Metrichia disparilis (Flint 1983)
- Metrichia neotropicalis Schmid 1958
- Metrichia patagonica (Flint 1983)
- Metrichia pitu Angrisano & Sganga 2009
- Genus Neotrichia Morton 1905
- Neotrichia abbreviata Flint 1983
- Neotrichia abbreviatoides Angrisano 1995
- Neotrichia aequispina Angrisano 1995
- Neotrichia angulata Flint 1983
- Neotrichia baritu Angrisano 1984
- Neotrichia brevispina Flint 1983
- Neotrichia bullata Flint 1974
- Neotrichia chana Angrisano 1995
- Neotrichia charrua Angrisano 1984
- Neotrichia chilensis Flint 1983
- Neotrichia dikeros Flint 1983
- Neotrichia durior Flint 1983
- Neotrichia elongata Flint 1983
- Neotrichia falcifera Flint 1974
- Neotrichia filifera Flint 1983
- Neotrichia gotera Flint 1983
- Neotrichia lucrecia Angrisano 1995
- Neotrichia noteuna (Mosely 1939)
- Neotrichia novara (Mosely 1939)
- Neotrichia palma Flint 1982
- Neotrichia picada Flint 1983
- Neotrichia sala Angrisano 1984
- Neotrichia salada Flint 1982
- Neotrichia sicilicula Flint 1983
- Neotrichia tertia (Mosely 1939)
- Neotrichia tubulifera Flint 1980
- Genus Ochrotrichia Mosely 1934
- Ochrotrichia pora Angrisano & Sganga 2009
- Genus Orthotrichia Eaton 1873
- Orthotrichia cristata Morton 1905
- Genus Oxyethira Eaton 1873
- Oxyethira (?) argentinensis Flint 1982
- Oxyethira (?) hozosa Harris & Davenport 1999
- Oxyethira (?) mocoi Angrisano 1995
- Oxyethira (?) poapi Angrisano & Sganga 2009
- Oxyethira (?) tamandua Angrisano & Sganga 2009
- Subgenus Dactylotrichia Kelley 1984
- Oxyethira (Dactylotrichia) acegua Angrisano 1995
- Oxyethira (Dactylotrichia) baritu Angrisano 1995
- Oxyethira (Dactylotrichia) costaricensis Kelley 1983
- Oxyethira (Dactylotrichia) misionensis Angrisano 1995
- Oxyethira (Dactylotrichia) santiagensis Flint 1982
- Subgenus Dampfitrichia Mosely 1937
- Oxyethira (Dampfitrichia) circaverna Kelley 1983
- Oxyethira (Dampfitrichia) lagunita Flint 1980
- Oxyethira (Dampfitrichia) ulmeri (Mosely 1937)
- Subgenus Loxotrichia Mosely 1937
- Oxyethira (Loxotrichia) copina Angrisano 1995
- Oxyethira (Loxotrichia) parce (Edwards & Arnold 1961)
- Oxyethira (Loxotrichia) ritae Angrisano 1995
- Oxyethira (Loxotrichia) zilaba (Mosely 1939)
- Subgenus Oxytrichia Mosely 1939
- Oxyethira (Oxytrichia) bidentata Mosely 1934
- Oxyethira (Oxytrichia) andina Kelley 1983
- Oxyethira (Oxytrichia) obscura Flint 1974
- Oxyethira (Oxytrichia) petei Angrisano 1995
- Genus Peltopsyche Müller 1879
- Peltopsyche antennata (Mosely 1939)
- Peltopsyche epara (Oláh & Flint 2012)
- Peltopsyche squamosa (Mosely 1939)
- Genus Ragatrichia Oláh & Johanson 2011
- Ragatrichia garuhape (Angrisano & Sganga 2009)
- Ragatrichia yatay (Angrisano 1989)
- Genus Rhyacopsyche Müller 1879
- Rhyacopsyche hagenii Müller 1879
