In synonymy:
Aenigma Karsch, 1878 = Argoctenus L. Koch, 1878 (Simon, 1898a: 296, sub Nilus, confirmed by Roewer, 1955c: 117)
Aenigmaaranea Strand, 1929 = Argoctenus L. Koch, 1878 (Davies, 1985: 123)
Aetola Karsch, 1880 = Argoctenus L. Koch, 1878 (Roewer, 1955c: 117, sub Nilus)
Horioctenoides Main, 1954 = Argoctenus L. Koch, 1878 (Forster & Wilton, 1973: 119)
Miturgina Simon, 1889 = Argoctenus L. Koch, 1878 (Simon, 1897a: 130)
Nemoctenus Forster & Wilton, 1973 = Argoctenus L. Koch, 1878 (Raven & Stumkat, 2003: 119)

type Argoctenus igneus L. Koch, 1878; gender masculine

N.B.: transferred from the Ctenidae to the Zoridae by Lehtinen, 1967: 216 and to the Miturgidae (by the synonymy of the Zoridae) by Ramírez, 2014: 341; considered a senior synonym of Miturgina Simon, 1889c: 244 [urn:lsid:nmbe.ch:spidergen:05843] (type M. vittata Simon, 1889) by Simon, 1897a: 130; considered a senior synonym of Aenigmaaranea Strand, 1929: 11 [urn:lsid:nmbe.ch:spidergen:05846] (previously considered a junior synonym of Nilus O. Pickard-Cambridge, 1876, Pisauridae, by Simon, 1898a: 296) by Davies, 1985: 123; Aenigmaaranea is a superfluous replacement name for Aenigma Karsch, 1878; considered a senior synonym of Aenigma Karsch, 1878c: 825 [urn:lsid:nmbe.ch:spidergen:05844] (type A. australiana Karsch, 1878) by Simon, 1898a: 296 (sub Nilus); Aenigma is preoccupied in Coleoptera by Newman, 1836 (and several other times) and was replaced by Aetola Karsch, 1880c: 385 [urn:lsid:nmbe.ch:spidergen:05845], which was overlooked by the most authors; Aetola was considered a synonym by Roewer, 1955c: 117 (sub Nilus); considered a senior synonym of Horioctenoides Main, 1954: 42 [urn:lsid:nmbe.ch:spidergen:01789] (type H. bidentatus Main, 1954) and Nemoctenus Forster & Wilton, 1973: 290 [urn:lsid:nmbe.ch:spidergen:01796] (type Argoctenus aureus Hogg, 1911) by Raven & Stumkat, 2003: 119; see Forster & Wilton, 1973: 293, f. 1028, 1034-1038 for an undescribed species from New Zealand.

Transferred to other genera:
Argoctenus gracilis (Hickman, 1950) -- see Knotodo

Argoctenus aureus Hogg, 1911: 306, f. 94 (Df).
Argoctenus aurens Bryant, 1935d: 84, pl. 12, f. 17, pl. 13, f. 33 (f).
Nemoctenus aurens Forster & Wilton, 1973: 291, f. 1030-1033, 1043-1046 (Tf from Argoctenus, Dm).

Aenigma australiana Karsch, 1878c: 825 (Df).
Aetola australianus Karsch, 1880c: 385.
Nilus australianus Simon, 1898a: 290.
Aenigmaaranea australianus Strand, 1929: 11 (generic replacement name).
Argoctenus australianus Davies, 1985: 123 (Tf from Aenigmaaranea).

Horioctenoides bidentatus Main, 1954: 42, pl. 3, f. 1-4, 6-7 (Df).

Argoctenus devisi Rainbow, 1898a: 350, pl. 7, f. 12 (Df).

Argoctenus hystriculus Simon, 1909d: 164 (Df).

Argoctenus igneus L. Koch, 1878a: 990, pl. 86, f. 4 (Df).

Argoctenus nebulosus Simon, 1909d: 163 (Df).

Argoctenus pectinatus Hogg, 1900: 106, pl. 16, f. 1 (Df).

Argoctenus pictus L. Koch, 1878a: 992, pl. 86, f. 5 (Df).

Miturgina vittata Simon, 1889c: 244 (Dj).
Argoctenus vittatus Simon, 1897a: 130.

Cycloctenus vittatus Rainbow, 1920b: 262, pl. 30, f. 96-99 (Df).
Argoctenus vittatus Lehtinen, 1967: 216 (T from Cycloctenus; a junior homonym of Argoctenus vittatus (Simon, 1889) but possibly S of that name as well).