In synonymy:
Bonnetiella Caporiacco, 1949 = Microlinyphia Gerhardt, 1928 (van Helsdingen, 1970: 4)
Pusillia Chamberlin & Ivie, 1943 = Microlinyphia Gerhardt, 1928 (Wiehle, 1956: 297)
In synonymy:
Microlinyphia africanibia (Strand, 1913, T from Linyphia) = Microlinyphia sterilis (Pavesi, 1883) (van Helsdingen, 1970: 18)
Microlinyphia ampullacea (Walckenaer, 1837, T from Theridion) = Microlinyphia pusilla (Sundevall, 1830) (Thorell, 1870a: 50, sub Linyphia)
Microlinyphia baltistana (Caporiacco, 1934, T from Linyphia) = Microlinyphia pusilla (Sundevall, 1830) (van Helsdingen, 1970: 9)
Microlinyphia bonita (Chamberlin & Ivie, 1943) = Microlinyphia pusilla (Sundevall, 1830) (van Helsdingen, 1970: 9)
Microlinyphia carnica (Caporiacco, 1922, T from Linyphia) = Microlinyphia pusilla (Sundevall, 1830) (van Helsdingen, 1970: 9)
Microlinyphia cayuga (Emerton, 1914) = Microlinyphia impigra (O. Pickard-Cambridge, 1871) (Wiehle, 1956: 331, sub Linyphia)
Microlinyphia circumcincta (O. Pickard-Cambridge, 1871) = Microlinyphia impigra (O. Pickard-Cambridge, 1871) (O. Pickard-Cambridge, 1881a: 578, sub Linyphia)
Microlinyphia culta (O. Pickard-Cambridge, 1893) = Microlinyphia impigra (O. Pickard-Cambridge, 1871) (Pack-Beresford, 1929: 42, sub Linyphia)
Microlinyphia fuliginea (Blackwall, 1833) = Microlinyphia pusilla (Sundevall, 1830) (O. Pickard-Cambridge, 1874d: 329, sub Linyphia)
Microlinyphia globosa (Wider, 1834) = Microlinyphia pusilla (Sundevall, 1830) (Simon, 1929: 744, sub Linyphia)
Microlinyphia inexplicabilis (Denis, 1941) = Microlinyphia johnsoni (Blackwall, 1859) (Wunderlich, 1987a: 147)
Microlinyphia interpolis (O. Pickard-Cambridge, 1904, T from Linyphia) = Microlinyphia sterilis (Pavesi, 1883) (van Helsdingen, 1970: 17)
Microlinyphia lineata (Blackwall, 1862, T from Tetragnatha) = Microlinyphia johnsoni (Blackwall, 1859) (Wunderlich, 1987a: 147)
Microlinyphia maeklini (Thorell, 1875, T from Linyphia) = Microlinyphia impigra (O. Pickard-Cambridge, 1871) (van Helsdingen, 1970: 51)
Microlinyphia mandibulata provoana (Chamberlin & Ivie, 1943) = Microlinyphia mandibulata (Emerton, 1882) (van Helsdingen, 1970: 39)
Microlinyphia parenzani (Caporiacco, 1932, T from Lepthyphantes) = Microlinyphia pusilla (Sundevall, 1830) (van Helsdingen, 1982b: 169)
Microlinyphia pascuensis (Walckenaer, 1841) = Microlinyphia pusilla (Sundevall, 1830) (Simon, 1884a: 241, sub Linyphia )
Microlinyphia pratensis (Wider, 1834) = Microlinyphia pusilla (Sundevall, 1830) (Westring, 1851: 37, sub Linyphia )
Microlinyphia pusilla quadripunctata (Strand, 1903) = Microlinyphia pusilla (Sundevall, 1830) (Nentwig et al., 2019: 39)
Microlinyphia ramblae Schmidt, 1975 = Microlinyphia johnsoni (Blackwall, 1859) (Wunderlich, 1987a: 147)
Microlinyphia signata (Hahn, 1834) = Microlinyphia pusilla (Sundevall, 1830) (Thorell, 1870a: 50, sub Linyphia)
Microlinyphia singularis (Caporiacco, 1949, T from Bonnetiella) = Microlinyphia sterilis (Pavesi, 1883) (van Helsdingen, 1970: 18)
Microlinyphia suspiciosa (Pavesi, 1833, T from Linyphia) = Microlinyphia sterilis (Pavesi, 1883) (van Helsdingen, 1970: 17)