Revisional notes on the subgenus Stephanorrhina (Aphelorrhina) Westwood, 1843 (Coleoptera, Scarabaeidae, Cetoniinae)

The subgenus Stephanorrhina (Aphelorrhina) Westwood, 1843 is studied and revised. The analysis of type material and original descriptions has revealed a number of misidentifications, which are corrected herein. S. (A.) haroldi Kolbe 1892 bona sp. is reinstated as the valid name for the species from western Democratic Republic of the Congo (Kasaï-Central). Two subspecies of haroldi are tentatively recognized: S. (A.) haroldi ruteri (Allard, 1986) comb. nov. and S. (A.) haroldi bouyeri (Allard, 1991) comb. nov. It was found that ALLARD (1986) misapplied the name neumanni Kolbe, 1897 to the Kasaian specimens of S. (A.) haroldi s. str., although S. (A.) neumanni was demonstrably described from around Kavirondo, Kenya, in eastern Africa. To complicate matters, ALLARD (1984; 1986) referred the eastern African taxon (i.e., neumanni) to as S. (A.) tibialis (Waterhouse, 1879) (lectotype designated) (=Coelorrhina excavata Harold, 1879 syn. nov.), whereas that species is restricted to Angola. In addition, ALLARD (1984) redescribed S. (A.) neumanni as S. (A.) tibialis adelphoides (Allard, 1984) syn. nov., not noting the identity of the two taxa (both described from western Kenya). We also found that S. bella camerunensis Krajcik, 2013 syn. nov. is, in fact, a synonym of S. (S.) julia (Waterhouse, 1879). Overall, five species are herein recognized: S. (A.) simillima (Westwood, 1842) from western Africa; S. (A.) bella (Waterhouse, 1879) (lectotype designated) from north-central Africa, with S. (A.) bella hecqi (Allard, 1984) as a potentially valid subspecies localized in Ituri, northeastern Democratic Republic of the Congo; S. (A.) haroldi with two subspecies, broadly ranging in south-central Africa from western Democratic Republic of the Congo to western Tanzania; S. (A.) tibialis from central and western Angola; and S. (A.) neumanni from the Lake Victoria region, with S. (A.) neumanni collinsi (Allard, 1984) comb. nov. as a potentially valid subspecies apparently localized in Rwanda and a few additional localities in Tanzania. All valid species and subspecies, including type specimens, are illustrated.