2 literature references for Appressalia erithreensis Sjöstedt, 1932:

Author: Johnston, H.B.
Year: 1956
Title:
Source: Annotated catalogue of African grasshoppers, The Cambridge University Press, Cambridge 833 pp.
Author: Sjöstedt
Year: 1932
Title: Orthopterentypen in Naturhistorichen Reichsmuseum zu Stockholm. 2. Acrididae
Source: Arkiv för Zoologi (Ark. Zool.) 24A(1):89 pp., 22 pls.