In synonymy:
Bion O. Pickard-Cambridge, 1898 = Witica O. Pickard-Cambridge, 1895 (Simon, 1903a: 1003)
Physiola Simon, 1895 = Witica O. Pickard-Cambridge, 1895 (Simon, 1898a: 207)
Salassia Gétaz, 1893 = Witica O. Pickard-Cambridge, 1895 (Simon, 1895a: 784, sub Salassina, confirmed by Levi, 1986b: 37)
Salassina Simon, 1895 = Witica O. Pickard-Cambridge, 1895 (Levi, 1986b: 37)

type Witica talis O. Pickard-Cambridge, 1895; gender masculine (see Bonnet, 1959: 4827); syn. of Witica crassicauda (Keyserling, 1865)

N.B.: considered a senior synonym of Physiola Simon, 1895a: 784 [urn:lsid:nmbe.ch:spidergen:05547] (type P. nigrans Simon, 1895 = Witica crassicauda (Keyserling, 1865)) by Simon, 1898a: 207, of Bion brevis O. Pickard-Cambridge, 1898a: 244 [urn:lsid:nmbe.ch:spidergen:06047] (type B. brevis O. Pickard-Cambridge, 1898 = Witica crassicauda (Keyserling, 1865)) by Simon, 1903a: 1003 and of Salassina Simon, 1895a: 784 [urn:lsid:nmbe.ch:spidergen:05316] (type Epeira crassicauda Keyserling, 1865) by Levi, 1986b: 37 (removed from the synonymy with Edricus O. Pickard-Cambridge, 1890); Salassina was considered a junior synonym of Salassia Gétaz, 1893: 105 [urn:lsid:nmbe.ch:spidergen:05546] (type S. tricuspis Gétaz, 1893 = Witica crassicauda (Keyserling, 1865) and preoccupied in Gastropoda by Folin, 1871) by Simon, 1895a: 784.

In synonymy:
Witica brevis (O. Pickard-Cambridge, 1898, T from Bion) = Witica crassicauda (Keyserling, 1865) (Simon, 1903a: 1003, sub W. talis).
Witica nigrans (Simon, 1895) = Witica crassicauda (Keyserling, 1865) (Simon, 1903a: 1003, sub W. talis).
Witica talis O. Pickard-Cambridge, 1895 = Witica crassicauda (Keyserling, 1865) (Levi, 1986b: 41).
Witica tricuspis (Gétaz, 1893, T from Edricus) = Witica crassicauda (Keyserling, 1865) (Levi, 1986b: 41).

Nomen dubium:
Witica alobatus (Franganillo, 1931b: 44, f, Cuba, originally in Salassina) -- Alayón & Sherwood, 2022: 610.

Epeira cayana Taczanowski, 1873: 135, pl. 5, f. 15 (Df).
Edricus cayana Roewer, 1942a: 762.
Witica cayana Levi, 1986b: 44, f. 6-7, 13-15 (Tf from Edricus, Dm).
Witica cayanus Cabra-García & Hormiga, 2020: 1040, f. 48B, 55B, 105C-D (f).

Epeira crassicauda Keyserling, 1865: 806, pl. 18, f. 3-4 (Df) [N.B.: crassicauda is not an adjective].
Salassia tricuspis Gétaz, 1893: 105 (Df) [urn:lsid:nmbe.ch:spidersp:054688].
Cyclosa crassicauda Keyserling, 1893: 270, pl. 14, f. 200 (f).
Witica talis O. Pickard-Cambridge, 1895a: 160, pl. 16, f. 13 (Dm) [urn:lsid:nmbe.ch:spidersp:054687].
Salassina crassicauda Simon, 1895a: 784, f. 853 (f).
Physiola nigrans Simon, 1895a: 876, f. 938-939 (Dmf) [urn:lsid:nmbe.ch:spidersp:058447].
Bion brevis O. Pickard-Cambridge, 1898a: 244, pl. 30, f. 5 (Dm) [urn:lsid:nmbe.ch:spidersp:058448].
Vitica thalis Simon, 1903a: 1003 (lapsus, S of Bion brevis and Physiola = Witica nigrans).
Edricus crassicauda F. O. Pickard-Cambridge, 1904: 500, pl. 47, f. 21 (f).
Edricus tricuspis F. O. Pickard-Cambridge, 1904: 500.
Edricus tricuspis Banks, 1914a: 678, pl. 30, f. 23 (f).
Edricus crassicauda Petrunkevitch, 1930a: 318, f. 192-193 (f).
Witica thalis Petrunkevitch, 1930a: 337, f. 225-226 (m, lapsus).
Witica crassicauda Levi, 1986b: 41, f. 1-5, 8-12, 16-17 (mf, T from Edricus, S of Edricus tricuspis and Witica talis).
Witica crassicauda Levi, 2002: 537, f. 51-52, 245-246 (mf).