Riana is probably right! because what I did not see is the dimensions which are rather big whereas at hottentota the dimensions are clearly smaller easily 10 to 12 mm less! Besides, it seems to me that the space between the tubercles of antennas is more spread in ferrugator than in hottentota what seems to me the case here?
On the other hand, the background coloring is more like that of C hottentota (in my eyes!) Than that of ferrugator ...... The Ceroplesis and their complexity ..... it's full of surprise ....