this is probably aurivillii (type not seen but dequaei is something different and gahani is very different (lack of apical black). I say probably as there are may be two species in this area (the common one found in Cameroon and proposed by many dealers from there and a may be a second found in Gabon, slightly different but lacking material for variability study ). I am busy with this genus (if you have interesting material ?)
s'il n'y pas de solution c'est qu'il n'y a pas de problème ! akuna matata ....
this is not dequaei! femora seem not a clear character. I have a small series of dequaei and a series too of "aurivillii" (with a reserve until not seeing the types and a doubt of a second potential sp in the area of the type locality), they are two different species !
good characters are the pronotal sculpture, the shape of the black basal patches and in a lesser view the length of the back apical patches.
s'il n'y pas de solution c'est qu'il n'y a pas de problème ! akuna matata ....