This name is a synonym of Pergularia daemia (Forssk.) Chiov..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 2606189) with original publication details: Fl. Cap. 4(1): 758 1908.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:100378-1.
This name was in version 1 of The Plant List, record tro-2606189.