In synonymy:
Mengea F. O. Pickard-Cambridge, 1903 = Allomengea Strand, 1912 (Strand, 1912b: 346, preoccupied, replacement name)
Pedina Menge, 1866 = Allomengea Strand, 1912 (Strand, 1912b: 346, preoccupied, replacement name)
Pedinella Dahl, 1909 = Allomengea Strand, 1912 (van Helsdingen, 1974: 301, preoccupied)

type Pedina cristata Menge, 1866; gender feminine; syn. of Allomengea scopigera (Grube, 1859)

N.B.: replacement name for Mengea F. O. Pickard-Cambridge, 1903b: 35 [urn:lsid:nmbe.ch:spidergen:05244], preoccupied in Strepsiptera by Grote, 1886; Mengea is a replacement name for Pedina Menge, 1866: 125 [urn:lsid:nmbe.ch:spidergen:05246], preoccupied in Echinodermata by Agassiz, 1838; Mengea was also replaced by Pedinella Dahl, 1909: 8 [urn:lsid:nmbe.ch:spidergen:05245], preoccupied in Protozoa (Ochrophyta) by Vysotskij, 1887; Pedinalla was considered a synonym by van Helsdingen, 1974: 301.

In synonymy:
Allomengea adornata Zhu, Li & Sha, 1986 = Allomengea dentisetis (Grube, 1861) (Eskov, 1992a: 53).
Allomengea cristata (Menge, 1866, T from Pedina) = Allomengea scopigera (Grube, 1859) (Simon, 1884a: 385, sub Tmeticus scopiger).
Allomengea marchica (Dahl, 1909) = Allomengea vidua (L. Koch, 1879) (Wiehle, 1956: 286, sub Mengea warburtoni).
Allomengea ontariensis (Emerton, 1925, T from Helophora) = Allomengea dentisetis (Grube, 1861) (Ivie, 1967: 130, sub A. pinnata).
Allomengea pigra (L. Koch, 1879) = Allomengea dentisetis (Grube, 1861) (van Helsdingen, 1974: 317).
Allomengea pinnata (Emerton, 1915) = Allomengea dentisetis (Grube, 1861) (Saito, 1987: 9).
Allomengea probabilis (O. Pickard-Cambridge, 1909, T from Centromerus) = Allomengea vidua (L. Koch, 1879) (Simon, 1926: 742, sub Mengea warburtoni).
Allomengea rufa (Westring, 1851, T from Linyphia) = Allomengea scopigera (Grube, 1859) (Simon, 1884a: 385, sub Tmeticus scopiger).
Allomengea sitkaensis (Keyserling, 1886, T from Helophora) = Allomengea scopigera (Grube, 1859) (Ivie, 1967: 130).
Allomengea warburtoni (O. Pickard-Cambridge, 1889) = Allomengea vidua (L. Koch, 1879) (Holm, 1973: 90, sub warburtoni).

Allomengea beombawigulensis Namkung, 2002: 174, 620, f. 17.27a-d (Df).
Allomengea beombawigulensis Namkung, 2003: 176, f. 17.27a-d (f).
Allomengea beombawigulensis Lee, Kang & Kim, 2009: 117, f. 1a-c (f).

Mengea coreana Paik & Yaginuma, in Paik, Yaginuma & Namkung, 1969: 819, f. 45-47 (Df).
Mengea coreana Paik, 1978e: 260, f. 111.1-3 (f).
Allomengea coreana Brignoli, 1983c: 288.
Allomengea coreana Eskov, 1992b: 167 (probably to Araneidae).
Allomengea coreana Namkung, 2002: 173, f. 17.26a-d (f, Dm).
Allomengea coreana Namkung, 2003: 175, f. 17.26a-d (mf).

Micryphantes dentisetis Grube, 1861: 168 (Dm).
Linyphia pigra L. Koch, 1879c: 36, pl. 1, f. 25-25a (Df) [urn:lsid:nmbe.ch:spidersp:059908].
Microneta pinnata Emerton, 1915b: 152, pl. 3, f. 1 (Dm) [urn:lsid:nmbe.ch:spidersp:059909].
Linyphia ontariensis Emerton, 1925: 68, f. 5a-e (Dmf) [urn:lsid:nmbe.ch:spidersp:059907].
Helophora ontariensis Blauvelt, 1936: 154, pl. 14, f. 101-102, pl. 15, f. 103-104 (f).
Helophora ontariensis Chamberlin & Ivie, 1947b: 56, f. 79 (f, T from Linyphia).
Linyphia pigra Roewer, 1955c: 1545 (nicht zu deuten = nomen dubium).
Micryphantes dentisetis Roewer, 1955c: 1589 (nicht zu deuten = nomen dubium).
Allomengea pinnata Holm, 1960b: 125 (T from Microneta).
Allomengea pinnata Ivie, 1967: 130 (S of Helophora ontariensis).
Allomengea pigra Holm, 1973: 89, f. 49-51 (f, T from Linyphia, removed from nomen dubium).
Allomengea pigra Staręga, 1974: 23, f. 9-11, photo 4 (f).
Allomengea pinnata van Helsdingen, 1974: 311, f. 17-23 (mf).
Allomengea dentisetis van Helsdingen, 1974: 317, f. 24-25 (mf, T from Micryphantes, removed from nomen dubium, S of Allomengea pigra).
Allomengea adornata Zhu, Li & Sha, 1986: 267, f. 3A-F (Dmf) [urn:lsid:nmbe.ch:spidersp:059905].
Allomengea dentisetis Saito, 1987: 9, f. 19-22 (mf, S of Allomengea pinnata).
Allomengea dentisetis Eskov, 1992a: 53 (S of Allomengea adornata).
Allomengea dentisetis Li, Song & Zhu, 1994: 80, f. 28 (f).
Allomengea dentisetis Tao, Li & Zhu, 1995: 242, f. 1-6 (mf).
Allomengea dentisetis Song, Zhu & Chen, 1999: 156, f. 85G-J (mf).
Allomengea adornata Hu, 2001: 482, f. 319.1-5 (mf).
Allomengea dentisetis Paquin & Dupérré, 2003: 133, f. 1456-1457 (mf).
Allomengea dentisetis Ono, Matsuda & Saito, 2009: 335, f. 1152-1156 (mf).

Mengea niyangensis Hu, 2001: 523, f. 349.1-4 (Df).

Linyphia rufa Westring, 1851: 38 (Dmf; preoccupied by Walckenaer, 1841, see Linyphia rufa) [urn:lsid:nmbe.ch:spidersp:059912].
Linyphia scopigera Grube, 1859: 470 (Dm).
Pedina cristata Menge, 1866: 125, pl. 23, f. 49 (Dmf) [urn:lsid:nmbe.ch:spidersp:059913].
Tmeticus scopiger Simon, 1884a: 385, f. 158-159 (mf, S of Linyphia rufa Westring and Pedina cristata).
Linyphia sitkaensis Keyserling, 1886b: 86, pl. 13, f. 180 (Df) [urn:lsid:nmbe.ch:spidersp:059910].
Mengea scopigera F. O. Pickard-Cambridge, 1903b: 35 (generic replacement name).
Pedinella scopigera Dahl, 1909: 8 (generic replacement name).
Allomengea scopigera Strand, 1912b: 346 (generic replacement name).
Mengea scopigera Simon, 1929: 627, 742, f. 948-950 (mf).
Helophora sitkaensis Chamberlin & Ivie, 1947b: 56 (T from Linyphia).
Mengea scopigera Locket & Millidge, 1953: 403, f. 242B-C, E (mf).
Mengea scopigera Wiehle, 1956: 283, f. 468-471 (mf).
Mengea scopigera Brændegaard, 1958: 89, f. 87-88 (mf).
Mengea scopigera Beer, 1964: 527, f. 4 (f).
Allomengea scopigera Ivie, 1967: 130 (S of Helophora sitkaensis).
Allomengea scopigera van Helsdingen, 1974: 302, f. 8-11 (mf).
Allomengea scopigera Palmgren, 1975: 36, f. 7.21-24 (mf).
Allomengea scopigera Millidge, 1977: 48, f. 197 (m).
Allomengea scopigera Millidge, 1984b: 244, f. 68, 80 (f).
Allomengea scopigera Roberts, 1987: 166, f. 87a, c (mf).
Allomengea scopigera Tanasevitch, 1990: 81, f. 13.21-22 (mf).
Allomengea scopigera Heimer & Nentwig, 1991: 114, f. 326 (mf).
Allomengea scopigera Agnarsson, 1996: 152, f. 168A-B (mf).

Linyphia vidua L. Koch, 1879c: 24, pl. 1, f. 11-11b (Df).
Tmeticus warburtonii O. Pickard-Cambridge, 1889c: 115, pl. A, f. 5a-k (Dmf) [urn:lsid:nmbe.ch:spidersp:059911].
Tmeticus warburtoni F. O. Pickard-Cambridge, 1892: 393.
Pedinella marchica Dahl, 1909: 8 (Dmf) [urn:lsid:nmbe.ch:spidersp:059906].
Centromerus probabilis O. Pickard-Cambridge, 1909a: 174, 190, pl. A, f. 20-23 (Df) [urn:lsid:nmbe.ch:spidersp:059914].
Mengea warburtoni Simon, 1929: 627, 742, f. 951-952 (mf, S of Centromerus probabilis).
Mengea warburtoni Miller, 1951: 224, pl. II, f. 22-27 (mf).
Mengea warburtoni Locket & Millidge, 1953: 404, f. 242A, D (mf).
Linyphia vidua Roewer, 1955c: 1547 (nicht zu deuten = nomen dubium).
Mengea warburtoni Wiehle, 1956: 286, f. 472-475 (mf, S of Pedinella = Mengea marchica).
Mengea warburtoni Casemir, 1962: 20, pl. I, f. 6 (f).
Allomengea warburtoni Merrett, 1963b: 383, f. 40A-D (m).
Mengea warburtoni Miller, 1971: 232, pl. XLVI, f. 28 (m).
Allomengea warburtoni Holm, 1973: 90 (S of Linyphia vidua, removed from nomen dubium; used younger name without explanation).
Allomengea vidua van Helsdingen, 1974: 306, f. 12-16 (mf).
Allomengea warburtoni Palmgren, 1975: 37, f. 7.19-20 (mf).
Allomengea vidua Pakhorukov, 1981: 72, f. 1 (f).
Allomengea vidua Roberts, 1987: 166, f. 87b, d (mf).
Mengea warburtoni Izmailova, 1989: 80, f. 61 (f).
Allomengea vidua Heimer & Nentwig, 1991: 114, f. 325 (mf).
Allomengea vidua Paquin & Dupérré, 2003: 134, f. 1458-1459 (mf).
Allomengea vidua Lecigne, 2020: 57, pl. 3L (f).