This name is a synonym of Cattleya araguaiensis Pabst.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 35804) with original publication details: Bol. CAOB 3(3): 6 1991.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:309583-2.
This name was in version 1 of The Plant List, record kew-35804, and has not been changed.