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The scarab beetles of the subfamily Orphninae (Coleoptera: Scarabaeidae) from Sri Lanka are reviewed. Four species of the genus Orphnus Macleay, 1819, are recorded from the island: O. bicolor (Fabricius, 1801), O. parvus (Wiedemann, 1823), O. mysoriensis Westwood, 1845, and O. medvedevi sp. nov. Lectotypes are designated for the three former names. Synonymy of O. detegens Walker, 1859, and O. scitissimus Walker, 1859, is discussed. Keys, illustrations of habitus and male genitalia, and distributional record maps are given for all species.
The Afrotropical scarab beetle genus Cerhomalus Quedenfeldt, 1884 (Coleoptera: Scarabaeidae) is revised. Two new species are described: C. quedenfeldti sp. nov. and C. petrovitzi sp. nov. A new combination, Cerhomalus absconditus (Petrovitz, 1971) comb. nov., is established. The genus occurs in Central and West Africa with the majority of records from the Congo Basin. Keys, descriptions, illustrations of habitus and male genitalia, and distributional record map are given.