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Daniel, G.M., Davis, A.L. and Scholtz, C.H. 2016.

Three new Sisyphus species (Coleoptera: Scarabaeidae: Scarabaeinae) from shaded vegetation in southern Africa

. Zootaxa. 4147, 1 (Aug. 2016), 67–74. DOI:https://doi.org/10.11646/zootaxa.4147.1.4.