The males of this species made an instant impression on our dragonfly pool at Livingstone, Zambia.
There is a scarcer lookalike, C. suave, distinguished by lacking “teeth” on the upper posterior edge of S10, which I can see on one of my shots. The lower appendages here are also slightly longer than the upper appendages (equal in C. suave). So, C. glabrum it is.
The female is rather plain in comparison to the gaudy male.