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1944 June 21, James A. G. Rehn, South African Bird-Locust Records and Notes (Orthoptera; Acrididae; Cyrtacanthacridinae; Group Cyrtacanthacres), Notulae Naturae, Number 137, Academy of Natural Sciences of Philadelphia, page 3, The Lydenburg male and the other two females have the infuscate pattern definitely more recessive and less evident, although traceable.