type Linyphia obscura Blackwall, 1841; gender masculine

N.B.: the synonymy with Poeciloneta Kulczyński, 1894, proposed by Breitling, 2019b: 29 and Breitling, 2021: 22, is not accepted here as it is based mainly on COI (see FAQ 7).

In synonymy:
Obscuriphantes ollivieri (Denis, 1957, T from Lepthyphantes) = Obscuriphantes bacelarae (Schenkel, 1938) (Bosmans, Cardoso & Crespo, 2010: 34).
Obscuriphantes uncinatus (Schenkel, 1936) = Obscuriphantes obscurus (Blackwall, 1841) (Hu & Wu, 1989: 148, sub Lepthyphantes).

Lepthyphantes bacelari Schenkel, 1938b: 6, f. 2 (Df; named after Mrs. Amelia Bacelar).
Lepthyphantes ollivieri Denis, 1958c: 254, f. 7-8 (Df) [urn:lsid:nmbe.ch:spidersp:011263].
Obscuriphantes bacelarae Bosmans, Cardoso & Crespo, 2010: 34, f. 57-63 (Dm, f, T from Lepthyphantes, S of Lepthyphantes bacelarae).

Linyphia obscura Blackwall, 1841a: 665 (Dm).
Linyphia obscura Blackwall, 1864a: 244, pl. 17, f. 162 (Dm).
Linyphia obscura Thorell, 1875c: 23 (Df).
Bathyphantes obscurus Förster & Bertkau, 1883: 274.
Lepthyphantes obscurus Simon, 1884a: 292, f. 52-53 (mf).
Lepthyphantes obscurus Becker, 1896: 44, pl. 6, f. 5 (mf).
Lepthyphantes obscurus Bösenberg, 1901: 78, pl. 6, f. 85 (mf).
Lepthyphantes obscurus Simon, 1929: 588, 732, f. 892-893 (mf).
Lepthyphantes uncinatus Schenkel, 1936b: 267, f. 88 (Dm) [urn:lsid:nmbe.ch:spidersp:061478].
Lepthyphantes obscurus Denis, 1943b: 17, f. 7 (f).
Lepthyphantes obscurus Locket & Millidge, 1953: 384, f. 229A-C (mf).
Lepthyphantes obscurus Wiehle, 1956: 188, f. 315-318 (mf).
Lepthyphantes obscurus Merrett, 1963b: 360, f. 13A-E (m).
Lepthyphantes obscurus Tystshenko, 1971: 218, f. 664, 684 (mf).
Lepthyphantes obscurus Miller, 1971: 225, pl. XLIII, f. 21-22 (mf).
Lepthyphantes obscurus Wanless, 1971: 21, f. 1G, 5E (f).
Lepthyphantes obscurus Wanless, 1973: 130, f. II.6, VII.12 (f).
Lepthyphantes obscurus Palmgren, 1975: 58, f. 10.10-12 (mf).
Lepthyphantes obscurus Utochkin & Pakhorukov, 1976: 87, f. 15 (f).
Lepthyphantes obscurus Roberts, 1987: 150, f. 78b (mf).
Lepthyphantes obscurus Hu & Wu, 1989: 148, f. 121.1-2 (m, S of Lepthyphantes obscurus).
Lepthyphantes obscurus Tanasevitch, 1990: 97, f. 25.12, 26.15-16 (mf).
Lepthyphantes obscurus Heimer & Nentwig, 1991: 178, f. 482 (mf).
Lepthyphantes obscurus Zhao, 1993: 158, f. 76 (m).
Lepthyphantes obscurus Roberts, 1995: 359, f. (mf).
Lepthyphantes obscurus Zhao, 1995: 873, f. 412 (m).
Lepthyphantes obscurus Marusik, Hippa & Koponen, 1996: 17, f. 17-18, 22-23 (mf).
Lepthyphantes obscurus Roberts, 1998: 370, f. (mf).
Lepthyphantes obscurus Esyunin & Efimik, 1999: 230, f. 20-26 (mf).
Obscuriphantes obscurus Saaristo & Tanasevitch, 2000: 260, f. 15-16, 22 (mf, T from Lepthyphantes).
Lepthyphantes obscurus Hu, 2001: 509, f. 338 (m).
Obscuriphantes obscurus Merrett, 2004b: 21, f. 9 (m).
Obscuriphantes obscurus Saaristo, in Marusik & Koponen, 2008a: 10, pl. 3 (m).
Obscuriphantes obscurus Bosmans, Cardoso & Crespo, 2010: 36, f. 64-68 (mf).
Obscuriphantes obscurus Geci et al., 2023: 541, f. 17 (f).

Lepthyphantes obscurus dilutior Simon, 1929: 589, 732 (Df).

Lepthyphantes pseudoobscurus Marusik, Hippa & Koponen, 1996: 17, f. 14-16, 19-21 (Dmf).
Lepthyphantes pseudoobscurus Esyunin & Efimik, 1999: 232, f. 27-28 (m).
Obscuriphantes pseudoobscurus Saaristo & Tanasevitch, 2000: 260 (Tmf from Lepthyphantes).