A Mint moth (Pyrausta aurata) sits on an African daisy (Osteospernum ecklonis).
From Wikipedia (http://en.wikipedia.org/wiki/Mint_moth):
The Mint moth (Pyrausta aurata) is a small moth from the family Crambidae, active by day.
The purplish-brown wings have a span from 10 to 15 millimetres, and a single golden yellow spot on each overwing and underwing. The moth is very similar to the related Pyrausta purpuralis, a slightly larger moth with a larger number of yellow spots.
As the name suggests, the Mint moth often uses mint as a food plant, though it can also be found on other species such as marjoram. In north-west Europe it can be seen from April until the end of September, and is capable of having two generations in each season.