In synonymy:
Protadia Simon, 1892 = Argenna Thorell, 1870 (Wiehle, 1953: 110, by S of the type species)

type Argenna mengei Thorell, 1870; gender feminine; syn. of Argenna subnigra (O. Pickard-Cambridge, 1861)

N.B.: considered a senior synonym of Protadia Simon, 1892a: 239 [urn:lsid:nmbe.ch:spidergen:05520] (type Dictyna patula Simon, 1874) by Wiehle, 1953: 110; Altella Simon, 1884 may be a junior synonym (Wunderlich, 1995b: 424, Wunderlich, 2004j: 1429).

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 Lathys
Argenna prominula Tullgren, 1948 -- see Hackmania
Argenna saphes Chamberlin, 1948 -- see Hackmania

In synonymy:
Argenna albopunctata (Menge, 1869) = Argenna patula (Simon, 1874) (Lehtinen, 1967: 216, used younger name, probably eligible for selection under ICZN Article 79).
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 obesa Emerton, 1911: 399, pl. 4, f. 4 (Dmf).
Argenna aktia Chamberlin & Ivie, 1935b: 25, pl. 12, f. 97-98 (Dmf).
Lathys hesperus Chamberlin, 1948: 14 (Dmf).
Argenna obesa Kaston, 1948: 503, f. 1888-1890 (mf).
Argenna obesa Chamberlin & Gertsch, 1958: 10, pl. 1, f. 1-5 (mf).
Argenna obesa Paquin & Dupérré, 2003: 65, f. 527-529 (mf).

Dictyna albopunctata Menge, 1869: 248, pl. 48, f. 148 (Dmf; nomen oblitum) [urn:lsid:nmbe.ch:spidersp:054598].
Dictyna patula Simon, 1874a: 197 (Df).
Lethia patula O. Pickard-Cambridge, 1878a: 108.
Dictyna crassipalpis Dahl, 1883: 54, f. 31 (Dmf).
Argenna albopunctata Bertkau, 1883: 378.
Argenna patula Bertkau, 1883: 379.
Argenna lendlii Kulczyński, in Chyzer & Kulczyński, 1891: 160, pl. 6, f. 30 (Dmf).
Protadia patula Simon, 1892a: 240.
Protadia patula Jackson, 1913: 20, pl. 1, f. 5-7, 9 (Dm).
Argenna crassipalpis Reimoser, 1919: 25.
Protadia patula Locket & Millidge, 1951: 68, f. 21C, 29C-D, F (mf).
Argenna patula Wiehle, 1953: 110, f. 234-238 (mf).
Argenna patula Brændegaard, 1966: 56, f. 49-50 (mf).
Argenna patula Lehtinen, 1967: 216 (S of Dictyna albopunctata).
Argenna crassipalpis Azheganova, 1968: 43, f. 68-69 (mf).
Argenna crassipalpis Loksa, 1969: 55, f. 36D, 37A (mf).
Argenna patula Miller, 1971: 71, pl. IV, f. 9 (f).
Argenna patula Palmgren, 1977a: 22, f. 5.13-16 (mf).
Argenna patula Roberts, 1985: 54, f. 16b (mf).
Argenna patula Zhou & Song, 1987: 21, f. 6a-e (mf).
Argenna patula Hu & Wu, 1989: 66, f. 48.1-3 (mf).
Argenna patula Heimer & Nentwig, 1991: 374, f. 971 (mf).
Argenna patula Roberts, 1998: 91, f. (mf).
Argenna patula Song, Zhu & Chen, 1999: 363, f. 213G-J (mf).
Argenna patula Trotta, 2005: 164, f. 251-252 (mf).
Argenna patula Almquist, 2007: 303, f. 266a-g (mf; misidentified A. subnigra per Jonsson in litt.).
Argenna patula Dolanský & Krejčí, 2014: 16, f. 1 (m).
Argenna patula Grbić, Hänggi & Krnjajić, 2021: 23, f. 4A-B (m).

Altella polita Banks, 1898b: 233, pl. 14, f. 20 (Df).
Argenna polita Gertsch, in Roewer, 1955c: 1303.

Argenna sibirica Esyunin & Stepina, 2014a: 781, f. 1.1-6, 2.1-2 (Dm).

Drassus subniger O. Pickard-Cambridge, 1861a: 430 (Dm).
Ciniflo puta O. Pickard-Cambridge, 1863: 8570 (Df) [urn:lsid:nmbe.ch:spidersp:054600].
Argenna mengei Thorell, 1870b: 123 (Dmf).
Drassus subnigra O. Pickard-Cambridge, 1873b: 439, pl. 33, f. 3 (m).
Ciniflo mengei O. Pickard-Cambridge, 1873b: 441, pl. 33, f. 7 (m).
Lethia mengei Simon, 1874a: 206.
Lethia subnigra O. Pickard-Cambridge, 1875e: 246.
Lethia albispiraculis O. Pickard-Cambridge, 1878a: 109, pl. 11, f. 1 (Df).
Argenna pallida L. Koch, 1881b: 56, pl. 2, f. 8 (Df) [urn:lsid:nmbe.ch:spidersp:054599].
Argenna pallida Bertkau, 1883: 377, pl. 11, f. 3, 6-7.
Argenna albispiralis Bertkau, 1883: 378.
Argenna testacea Bertkau, 1883: 378, pl. 11, f. 1-2, 4-5 (Df).
Argenna minima Kulczyński, in Chyzer & Kulczyński, 1891: 159, pl. 6, f. 31 (Df).
Protadia subnigra Kulczyński, 1898: 54, pl. 1, f. 5-8 (mf).
Argenna pallida Bösenberg, 1902: 245, pl. 22, f. 351 (f, Dm).
Argenna subnigra Bösenberg, 1902: 245, pl. 22, f. 352 (mf).
Argenna mengei Bösenberg, 1902: 246, pl. 22, f. 353 (f).
Argenna subnigra Miller, 1947: 26, pl. II, f. 2a-d (mf).
Argenna subnigra Locket & Millidge, 1951: 67, f. 21D, 29A-B, E (mf).
Argenna subnigra Wiehle, 1953: 107, f. 230-233 (mf).
Argenna subnigra Lehtinen & Kleemola, 1962: 103, f. 2 (f).
Argenna subnigra Brændegaard, 1966: 58, f. 51 (f).
Argenna subnigra Lehtinen, 1967: 215 (S of Argenna pallida).
Argenna subnigra Loksa, 1969: 55, f. 23A, 36F-G, 37B (mf).
Argenna subnigra Miller, 1971: 71, pl. IV, f. 7-8 (mf).
Argenna subnigra Palmgren, 1977a: 23, f. 5.1-4 (mf).
Argenna subnigra Roberts, 1985: 54, f. 16a (mf).
Argenna subnigra Heimer & Nentwig, 1991: 374, f. 970 (mf).
Argenna subnigra Millidge, 1993c: 153, f. 52 (f).
Argenna subnigra Roberts, 1998: 90, f. (mf).
Argenna subnigra Merrett, 1998: 120 (S of Lathys puta).
Argenna subnigra Trotta, 2005: 164, f. 249-250 (mf).
Argenna subnigra Almquist, 2007: 304, f. 267a-f (mf; misidentified A. patula per Jonsson in litt.).
Argenna subnigra Yin et al., 2012: 964, f. 489a-e (mf).
Argenna subnigra Dolanský & Krejčí, 2014: 16, f. 1 (m).
Argenna subnigra Kuzmin & Esyunin, 2016b: 30, f. 1-8 (mf).
Argenna subnigra Esyunin, 2017b: 267, f. 2 (f).
Argenna subnigra Zamani, Nadolny & Dolejš, 2022: 555, f. 1H-I (f).

Argenna yakima Chamberlin & Gertsch, 1958: 11, pl. 1, f. 10-11 (Dmf).
Argenna yakima Lehtinen, 1967: 215 (may belong to Arctella Holm, 1945).