In synonymy:
Proshapalopus Mello-Leitão, 1923 = Crypsidromus Ausserer, 1871 (Bertani, 2023b: 105)

type Crypsidromus isabellinus Ausserer, 1871; gender masculine

N.B.: removed from the synonymy of Lasiodora C. L. Koch, 1850 by Bertani, 2023b: 105 (contra Pérez-Miles et al., 1996: 52); not a senior synonym of Metriopelma Becker, 1878 (Pérez-Miles et al., 1996: 52, contra Valerio, 1982: 408); considered a senior synonym of Proshapalopus Mello-Leitão, 1923a: 145 [urn:lsid:nmbe.ch:spidergen:03387] (type P. anomalus Mello-Leitão, 1923 = Crypsidromus isabellinus Ausserer, 1871) by Bertani, 2023b: 105; Proshapalopus was removed from the synonymy of Holothele Karsch, 1879 by Rudloff, 1997a: 12 and Bertani, 2001: 286, contra Raven, 1985a: 157 (sub Stichoplastus).

In synonymy:
Crypsidromus anomalus (Mello-Leitão, 1923, T from Proshapalopus) = Crypsidromus isabellinus Ausserer, 1871 (Bertani, 2023b: 105).
Crypsidromus melloleitaoi (Bücherl, Timotheo & Lucas, 1971, T from Cyclosternum) = Crypsidromus nondescriptus (Mello-Leitão, 1926) (Bertani, Nagahama & Fukushima, 2012: 468, after Silva-Moreira et al., 2010: 69, sub Vitalius).

Crypsidromus brevibulbus Valerio, 1980b: 279, f. 23, 31-32, 49 (Dm).
Metriopelma brevibulbus Schmidt, 2003l: 175, f. 429 (m).
Crypsidromus brevibulbus Bertani, 2023b: 107 (T from Lasiodora).

Crypsidromus carinatus Valerio, 1980b: 281, f. 26, 37-38, 52 (Dm).
Metriopelma carinatum Schmidt, 2003l: 175, f. 435 (m).
Crypsidromus carinatus Bertani, 2023b: 107 (T from Lasiodora).

Crypsidromus icecu Valerio, 1980b: 280, f. 25, 35-36, 51, 59 (Dmf).
Metriopelma icecu Schmidt, 2003l: 176, f. 433-434 (mf).
Crypsidromus icecu Bertani, 2023b: 107 (T from Lasiodora).

Crypsidromus isabellinus Ausserer, 1871a: 194 (Df).
Pamphobeteus isabellinus Mello-Leitão, 1923a: 227, 235.
Proshapalopus anomalus Mello-Leitão, 1923a: 146, f. 60-62 (Dm) [urn:lsid:nmbe.ch:spidersp:002107].
Pamphobeteus isabellinus Bücherl, 1957: 403, f. 85 (m).
Crypsidromus isabellinus Schmidt, 1986: 46, f. 51 (m).
Crypsidromus isabellinus Schmidt, 1993d: 61, f. 46 (m).
Proshapalopus anomalus Schmidt, 1997g: 17, f. 119-120 (m).
Proshapalopus anomalus Bertani, 2001: 289, f. 70-73, 177 (m, Df, T from Holothele).
Lasiodora isabellina Schmidt, 2003l: 173, f. 415 (m).
Proshapalopus anomalus Schmidt, 2003l: 131, f. 152-154 (mf).
Crypsidromus isabellinus Gabriel, 2016: 80, f. 70 (f).
Crypsidromus isabellinus Bertani, 2023b: 105, f. 285-288 (f, T from Lasiodora, S of Proshapalopus anomalus).

Phormictopus multicuspidatus Mello-Leitão, 1929c: 91, f. 1-2 (Dm).
Cyclosternum multicuspidatum Bücherl, Timotheo & Lucas, 1971: 123, f. 21-24, 33-34 (m, Df, T from Phormictopus).
Proshapalopus multicuspidatus Bertani, 2001: 288, f. 24, 66-69, 176 (mf, T from Cyclosternum).
Proshapalopus multicuspidatus Schmidt, 2003l: 185, f. 477-479 (mf).
Proshapalopus multicuspidatus Galleti-Lima et al., 2023: 6, f. 4E-F (m).
Crypsidromus multicuspidatus Bertani, 2023b: 106 (T from Proshapalopus).

Hapalopus nondescriptus Mello-Leitão, 1926a: 319, f. 7-8 (Dm).
Cyclosternum melloleitaoi Bücherl, Timotheo & Lucas, 1971: 125, f. 29-31 (Dm; omitted by Brignoli; according to Silva-Moreira et al., 2010 this name was based on the holotype of Hapalopus nondescriptus, and is therefore a junior synonym of that name, but Silva-Moreira et al., 2010 provided no evidence justifying a placement of the species in either genus) [urn:lsid:nmbe.ch:spidersp:001941].
Vitalius nondescriptus Bertani, Nagahama & Fukushima, 2012: 468, f. 1-11 (m, Df, T from Hapalopus, S of Cyclosternum melloleitaoi).
Proshapalopus nondescriptus Galleti-Lima et al., 2023: 6, f. 4A-C (m, T from Vitalius).
Crypsidromus nondescriptus Bertani, 2023b: 105 (T from Proshapalopus, by S of the genus).

Crypsidromus puriscal Valerio, 1980b: 280, f. 24, 33-34, 50, 58 (Dmf).
Metriopelma puriscal Schmidt, 2003l: 176, f. 431-432 (mf).
Crypsidromus puriscal Bertani, 2023b: 107 (T from Lasiodora).

Crypsidromus rubitarsus Valerio, 1980b: 281, f. 27, 39-40, 53 (Dm).
Metriopelma rubitarsus Schmidt, 2003l: 176, f. 436 (m).
Crypsidromus rubitarsus Bertani, 2023b: 108 (T from Lasiodora).