2 literature references for Cyrtacanthacris aeruginosa (Stoll, C., 1813):

Author: Johnston, H.B.
Year: 1956
Title:
Source: Annotated catalogue of African grasshoppers, The Cambridge University Press, Cambridge 833 pp.
Author: Picker, Griffiths & Weaving
Year: 2005
Title:
Source: Field Guide to Insects of Southern Africa, Struik Publishers, South Africa 444 pp.