There is no preapical groove on the mesotibia, so yes, that rules out Apomecynini.
There are also no spines on the elytra or the pronotum. There are 2 tufts of black hairs on the pronotal disc (vaguely visible on the image). Any suggestion for the genus?
The description by Pascoe of D.puncticollis doesn't fit. Perhaps Dyemus basicristatus Breuning, 1937 could be the one, judging from the name "cristatus" and the tufts of hairs on the pronotum of my specimen? Anyone has the Breuning 1937 paper ?