Notes below still coming?
Agreed with your ID assuming I would be able to verify it momentarily, but am in purgatory until then ...

The so-called Garden Fruit Chafer must be the most familiar cetoniine chafer in our region. It has three subspecies here, as follows:

(1) Pachnoda sinuata flaviventris [ excellent photos at http://ispot.org.za/node/136601 ] is by far the most widespread: from ECape through KZN, FS, the "Transvaal provinces", inland MOZ, ZIM & BOTS, plus being a fairly recent coloniser of the WCape. It seems more generalist than the other two subspecies, and (controversially) co-occurs in places with either of the other two subspecies. It seems that the subspecies barrier is based more on habitat specialisation than geographic separation (controversially so). This "common version" is yellow and black, with the underside yellow, and the black spots at the shoulders separated from the main black area above.

(2) Pachnoda sinuata calceata [this observation] differs from No. 1 mainly therein that the dark patches on the dorsal side are not black or dark brown, but a dark shiny green. This "western version" occurs only in the drier parts, in NCape and NAM.

(3) Pachnoda sinuata sinuata, the "forest version", is a scarcer subspecies and a forest specialist in the coastal regions of Transkei, KZN and MOZ. It differs from No. 1 therein that the underside is a very dark yellow to brown, and the black spots at the shoulders are incorporated into the main black area above.