In synonymy:
Agathostola Simon, 1892 = Homoeomma Ausserer, 1871 (Simon, 1903a: 936)
Butantania Mello-Leitão, 1935 (removed from S of Dryptopelma=Cyclosternum) = Homoeomma Ausserer, 1871 (Pérez-Miles et al., 1996: 52, contra Raven, 1985a: 150)
Calopelma Chamberlin, 1917 = Homoeomma Ausserer, 1871 (Gerschman & Schiapelli, 1972: 241)
Cyclothoracoides Strand, 1929 = Homoeomma Ausserer, 1871 (Lucas & Indicatti, 2015: 210, contra Raven, 1985a: 151, who considered it a synonym of Hapalotremus)
Cyclothorax Mello-Leitão, 1923 = Homoeomma Ausserer, 1871 (Lucas & Indicatti, 2015: 210)

type Homoeomma stradlingi O. Pickard-Cambridge, 1881; gender neuter; see Gerschman & Schiapelli, 1972: 241

N.B.: considered a senior synonym of Agathostola Simon, 1892a: 163 [urn:lsid:nmbe.ch:spidergen:05987] (type A. strabo Simon, 1892) by Simon, 1903a: 936 and of Calopelma Chamberlin, 1917: 43 [urn:lsid:nmbe.ch:spidergen:05094] (type C. brasilianum Chamberlin, 1917) by Gerschman & Schiapelli, 1972: 241, of Butantania Mello-Leitão, 1935c: 358 [urn:lsid:nmbe.ch:spidergen:05092] (type B. hirsuta Mello-Leitão, 1935) by Pérez-Miles et al., 1996: 52 and of Cyclothoracoides Strand, 1929: 17 [urn:lsid:nmbe.ch:spidergen:05102] by Lucas & Indicatti, 2015: 210; Cyclothoracoides is a replacement name for Cyclothorax Mello-Leitão, 1923a: 341 [urn:lsid:nmbe.ch:spidergen:05101] (type C. cyclothorax Mello-Leitão, 1923 = Homoeomma montanum (Mello-Leitão, 1923)), proccupied in Acari/Mesostigmata by Frauenfeld, 1868.

Transferred to other genera:
Homoeomma alcirae Gerschman & Schiapelli, 1954 -- see Plesiopelma
Homoeomma humile Vellard, 1924 -- see Bumba
Homoeomma peruvianum (Chamberlin, 1916) -- see Urupelma
Homoeomma pictum (Pocock, 1903) -- see Anqasha
Homoeomma simoni Soares & Camargo, 1948 -- see Catanduba

In synonymy:
Homoeomma bicolor Sherwood, Gabriel & Longhorn, 2018 = Homoeomma chilense Montenegro & Aguilera, 2018 (Sherwood, Gabriel & Longhorn, 2019: 70).
Homoeomma cyclothorax (Mello-Leitão, 1923, T from Hapalotremus/Cyclothoracoides) = Homoeomma montanum (Mello-Leitão, 1923) (Cavallo & Ferretti, 2015: 880).
Homoeomma moreirae (Mello-Leitão, 1923, T from Calopelma) = Homoeomma brasilianum (Chamberlin, 1917) (Gerschman & Schiapelli, 1972: 245).
Homoeomma regina (Chamberlin, 1917, T from Eurypelma = Avicularia) = Homoeomma strabo (Simon, 1892) (Gerschman & Schiapelli, 1972: 251).
Homoeomma serratum (Gerschman & Schiapelli, 1958, T from Tmesiphantes) = Homoeomma uruguayense (Mello-Leitão, 1946) (Gerschman & Schiapelli, 1972: 253).

Calopelma brasiliana Chamberlin, 1917: 44, pl. 3-4 (Dm).
Calopelma brasilianum Mello-Leitão, 1923a: 146, f. 45-47 (m).
Calopelma moreirae Mello-Leitão, 1923a: 149 (Dm) [urn:lsid:nmbe.ch:spidersp:057651].
Calopelma brasiliana Bücherl, 1957: 388, f. 26-26a (m).
Homoeomma brasilianum Gerschman & Schiapelli, 1972: 245, f. 1-10 (m, T from Calopelma, S of Calopelma moreirae).
Homoeomma brasiliana Schmidt, 1986: 45, f. 41-42 (m).
Calopelma brasilianum Smith, 1986b: 75, f. 7h (m).
Calopelma moreirae Smith, 1986b: 75, f. 8h (m).
Calopelma brasilianum Smith, 1987d: 75, f. 7h (m).
Calopelma moreirae Smith, 1987d: 75, f. 8h (m).
Homoeomma brasilianum Schmidt, 1993d: 67, f. 106-107 (m).
Homoeomma brasilianum Schmidt, 1997g: 15, f. 25, 32 (m).
Homoeomma brasilianum Schmidt, 2003l: 169, f. 390-391 (m).

Homoeomma chilensis Montenegro & Aguilera, in Montenegro, Aguilera & Casanueva, 2018: 14, f. 1a-f, 2a-h, 3a-g, 4a-c (Dmf).
Homoeomma bicolor Sherwood, Gabriel & Longhorn, 2018: 21, f. 1-16, 20 (Dmf) [urn:lsid:nmbe.ch:spidersp:050736].
Homoeomma chilensis Sherwood, Gabriel & Longhorn, 2019: 70 (S of Homoeomma bicolor).
Homoeomma chilense Montenegro & Aguilera, 2024a: 341, f. 1d, 2e, 3e, 4d, 10a-b, 11a, c (mf).
Homoeomma chilense Montenegro & Aguilera, 2024b: 86, f. 1a-d (m).

Tmesiphantes elegans Gerschman & Schiapelli, 1958: 4, f. 6-10 (Dm).
Homoeomma elegans Gerschman & Schiapelli, 1972: 245, f. 40-44 (Tm from Tmesiphantes).
Homoeomma elegans Schmidt, 1993d: 67, f. 118-119 (m).
Homoeomma elegans Schmidt, 1997g: 15, f. 30, 37 (m).
Homoeomma elegans Schmidt, 1999f: 8, f. 7-8 (m).
Homoeomma elegans Schmidt, 2003l: 169, f. 392-393 (m).

Homoeomma espinozai Montenegro & Aguilera, 2024b: 90, f. 8a-f, 9, 10d (Dm).

Homoeomma familiaris Bertkau, 1880a: 37, pl. 1, f. 11 (Df).
Grammostola familiaris Mello-Leitão, 1921a: 303.
Grammostola mollicoma Bücherl, 1951: 112 (S, subsequently rejected).
Homoeomma familiaris Schiapelli & Gerschman, 1961: 203, f. 9 (removed f from S of Grammostola mollicoma, returned to H.).
Homoeomma familiare Schmidt, 2003l: 170, f. 394 (f).

Butantania hirsuta Mello-Leitão, 1935c: 359, f. 5-8 (Dm).
Butantania hirsuta Bücherl, 1957: 388, f. 25 (m).
Butantania hirsuta Lucas & Bücherl, 1973: 242, f. 3-4 (m).
Butantania hirsuta Schmidt, 1986: 42, f. 18 (m).
Butantania hirsuta Smith, 1986b: 75, f. 6h (m).
Butantania hirsuta Smith, 1987d: 75, f. 6h (m).
Dryptopelma hirsutum Schmidt, 1993d: 65, f. 87 (m).
Homoeomma hirsutum Pérez-Miles et al., 1996: 52, f. 26 (m).
Cyclosternum hirsutum Schaefer, 1996: 24, f. 14 (m).
Homoeomma hirsutum Schmidt, 2003l: 170, f. 396 (m).

Homoeomma mínimum Montenegro & Aguilera, 2024b: 88, f. 4a-f, 5a-b, 10b (Dmf).

Cyclothorax cyclothorax Mello-Leitão, 1923a: 342 (Dm, generic name preoccupied) [urn:lsid:nmbe.ch:spidersp:002032].
Tmesiphantes montanus Mello-Leitão, 1923a: 139, f. 48-50 (Dmf).
Cyclothoracoides cyclothorax Strand, 1929: 17 (replacement generic name).
Strongylothorax cyclothorax André, 1937: 27 (superfluous replacement generic name).
Tmesiphantes montanus Bücherl, Timotheo & Lucas, 1971: 126, f. 38-41 (mf).
Homoeomma montanum Gerschman & Schiapelli, 1972: 249, f. 11-17 (mf, T from Tmesiphantes).
Tmesiphantes montanus Smith, 1986b: 100, f. 109h (m).
Tmesiphantes montanus Smith, 1987d: 100, f. 109h (m).
Homoeomma montanum Schmidt, 1993d: 67, f. 108-110 (mf).
Homoeomma montanum Schmidt, 1997g: 15, f. 26, 33, 39 (mf).
Homoeomma montanum Bertani, 2000: 30, f. 13-14 (m).
Homoeomma montanum Schmidt, 2003l: 170, f. 395, 397-398 (mf).
Homoeomma montanum Cavallo & Ferretti, 2015: 880 (S of Hapalotremus/Cyclothoracoides cyclothorax).

Mygale nigrum Walckenaer, 1837: 214 (D).
Mygale nigrum Walckenaer, 1841: 427 (Df).
Mygale versicolor C. L. Koch, 1842: vol. 9: 57, pl. 307, f. 727 (Dm).
Lasiodora versicolor C. L. Koch, 1850: 72.
Homoeomma versicolor Ausserer, 1871a: 211.
Homoeomma versicolor Ausserer, 1875: 196, pl. 7, f. 38 (m).
Homoeomma nigrum Pocock, 1903b: 111.
Homoeomma nigrum Smith, 1986b: 87, f. 55h (m; see note under H. stradlingi).
Homoeomma nigrum Smith, 1987d: 87, f. 55h (m).

Homoeomma orellanai Montenegro & Aguilera, in Montenegro, Aguilera & Casanueva, 2018: 17, f. 5a-e, 6a-i, 7a-g, 8a-b (Dmf).
Homoeomma orellanai Montenegro & Aguilera, 2024a: 341, f. 1e-f, 2f, 3f, 10c-d, 11b (mf).
Homoeomma orellanai Montenegro & Aguilera, 2024b: 87, f. 1e-h (m).

Homoeomma poqui Montenegro & Aguilera, 2024b: 89, f. 6a-f, 7a-b, 10c (Dmf).

Agathostola strabo Simon, 1892a: 163 (Dm).
Homoeomma strabo Simon, 1903a: 936.
Eurypelma regina Chamberlin, 1917: 49, pl. 4, f. 1 (Dmf) [urn:lsid:nmbe.ch:spidersp:057652].
Plesiopelma regina Mello-Leitão, 1923a: 182.
Homoeomma strabo Gerschman & Schiapelli, 1972: 251, f. 23-34 (mf, S of Eurypelma/Plesiopelma regina).
Plesiopelma regina Smith, 1986b: 66, f. 102h (m).
Plesiopelma regina Smith, 1987d: 66, f. 102h (m).
Homoeomma strabo Schmidt, 1993d: 67, f. 113-115 (mf).
Homoeomma strabo Schmidt, 1997g: 15, f. 28, 35, 40 (mf).
Homoeomma strabo Peters, 2003: 207, f. 837-839 (mf).
Homoeomma strabo Schmidt, 2003l: 125, f. 93-95 (mf).
Homoeomma strabo Peters, 2005b: 74, f. 242-247 (mf).

Homoeomma stradlingi O. Pickard-Cambridge, 1881c: 683, pl. 60, f. 1-7 (Dmf).
Homoeomma stradlingi Gerschman & Schiapelli, 1972: 244, f. 35-39 (m, removed from S of H. nigrum, considered an unidentifiable member of this genus).
Homoeomma stradlingi Schmidt, 1993d: 67, f. 116-117 (m).
Homoeomma stradlingi Pérez-Miles et al., 1996: 52, f. 24-25 (m).
Homoeomma stradlingi Schmidt, 1997g: 15, f. 29, 36 (m).
Homoeomma stradlingi Schmidt, 2003l: 170, f. 399-400 (m).

Homoeomma toriyamai Montenegro & Aguilera, 2024b: 87, f. 2a-f, 3a-b, 10a (Dmf).

Hapalotremus uruguayensis Mello-Leitão, 1946c: 7, f. 10-11 (Dm).
Hapalotremus uruguayensis Bücherl, 1957: 391, f. 35-35a (m).
Tmesiphantes serratus Gerschman & Schiapelli, 1958: 3, f. 1-5 (Dm) [urn:lsid:nmbe.ch:spidersp:057653].
Homoeomma uruguayensis Gerschman & Schiapelli, 1972: 253, f. 45-51 (m, Df, T from Hapalotremus, S of Tmesiphantes serratus).
Homoeomma uruguayensis Gerschman & Schiapelli, 1973b: 74, f. 25-31 (mf).
Hapalotremus uruguayensis Schmidt, 1986: 41, f. 13-14 (m).
Homoeomma uruguayense Schmidt, 1993d: 67, f. 120-122 (mf).
Homoeomma uruguayense Schmidt, 1997g: 15, f. 31, 38, 41 (mf).
Homoeomma uruguayensis Vol, 1999a: 12, f. M (f).
Homoeomma uruguayense Schmidt, 1999f: 8, f. 9 (f).
Homoeomma uruguayense Schmidt, 2003l: 170, f. 401-403 (mf).
Homoeomma uruguayense Ferretti, Copperi & Pompozzi, 2019: 437, f. 1a-i, 2a-e, 3a-e (mf).

Hapalopus villosus Keyserling, 1891: 7, pl. 1, f. 2 (Dm).
Ischnocolus pilosus Keyserling, 1891: 9 (Df).
Ischnocolus nigrescens Keyserling, 1891: 10 (Df; see below).
Crypsidromus perfidus Keyserling, 1891: 14 (Df; see below).
Crypsidromus funestus Keyserling, 1891: 15 (Df; see below).
Homoeomma villosum Simon, 1903a: 936.
Homoeomma villosum Pocock, 1903b: 112.
Homoeomma villosum Mello-Leitão, 1923a: 167 (Dmf).
Homoeomma villosum Gerschman & Schiapelli, 1972: 255, f. 18-22 (m; N.B.: three species described by Keyserling, 1891--Ischnocolus nigrescens, Crypsidromus perfidus, and C. funestus--that were considered by Simon and Pocock as synonyms of H. v. are based on juveniles thought by Gerschman & Schiapelli, 1972: 237 to be unidentifiable members of Grammostola).
Homoeomma villosum Schmidt, 1993d: 67, f. 111-112 (m).
Homoeomma villosum Schmidt, 1997g: 15, f. 27, 34 (m).
Homoeomma villosum Schmidt, 2003l: 170, f. 404-405 (m).