Acanthoscelides senex (Motschulsky, 1874) . Combination confirmed (J.M. Kingsolver, pers. comm.).

Bruchus senex Motschulsky, 1874: p. 234 . “Brésil” [Brazil]. Syntype (s) deposited in the ZMUM; examination of types and confirmation of placement in Acanthoscelides from Kingsolver (pers. comm.).

Bruchus senex: Pic (1902a), p. 51 (mentioned); Pic (1913), p. 49 (catalog); Pic (1938c), p. 25 (mentioned).

Acanthoscelides senex: Blackwelder (1946), p. 761 (catalog, comb. nov.); Udayagiri & Wadhi (1989), p. 63 (catalog); Romero-Nápoles et al. (2021), p. 214 (catalog).