In synonymy:
Protadia Simon, 1892 = Argenna Thorell, 1870 (Wiehle, 1953: 110)
Transferred to other genera:
Argenna alxa Tang, 2011 -- see Tricholathys
Argenna hingstoni (Hu & Li, 1987) -- see Titanoeca
Argenna lorna Chamberlin & Gertsch, 1958 -- see Hackmania
Argenna matanuska Chamberlin & Ivie, 1947 -- see Andronova
Argenna prominula Tullgren, 1948 -- see Hackmania
Argenna saphes Chamberlin, 1948 -- see Hackmania
In synonymy:
Argenna aktia Chamberlin & Ivie, 1935 = Argenna obesa Emerton, 1911 (Roewer, 1955c: 1303)
Argenna albispiraculis (O. Pickard-Cambridge, 1878) = Argenna subnigra (O. Pickard-Cambridge, 1861) (Simon, 1914: 62)
Argenna albopunctata (Menge, 1869) = Argenna patula (Simon, 1874) (Lehtinen, 1967: 216, used younger name, probably eligible for selection under ICZN Article 79)
Argenna crassipalpis (Dahl, 1883, T from Dictyna) = Argenna patula (Simon, 1874) (Wiehle, 1953: 110)
Argenna hesperus (Chamberlin, 1948, T from Lathys) = Argenna obesa Emerton, 1911 (Roewer, 1955c: 1303)
Argenna lendli Kulczyński, 1891 = Argenna patula (Simon, 1874) (Roewer, 1955c: 1302)
Argenna mengei Thorell, 1870 = Argenna subnigra (O. Pickard-Cambridge, 1861) (Simon, 1914: 62)
Argenna minima Kulczyński, 1891 = Argenna subnigra (O. Pickard-Cambridge, 1861) (Lessert, 1910b: 25, sub Protadia)
Argenna pallida L. Koch, 1881 = Argenna subnigra (O. Pickard-Cambridge, 1861) (Lehtinen, 1967: 216)
Argenna puta (O. Pickard-Cambridge, 1863, T from Lathys) = Argenna subnigra (O. Pickard-Cambridge, 1861) (Merrett, 1998: 120)
Argenna testacea Bertkau, 1883 = Argenna subnigra (O. Pickard-Cambridge, 1861) (Bösenberg, 1902: 245)