This name is a synonym of Attalea osmantha (Barb.Rodr.) Wess.Boer.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 186923) with original publication details: Pl. Jard. Rio de Janeiro 1: 30 1891.
This name was in version 1 of The Plant List, record kew-186923, and has not been changed.