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 (record 186946) with original publication details: Pl. Jard. Rio de Janeiro 4: 24 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:228946-2.
This name was in version 1 of The Plant List, record kew-186946, and has not been changed.