Dominance? Are these results true? In my opinion, black clypeal spot is depending from climate. In central Europe, clypeus is yellow, except a few specimens from extreme south. In southern Europe, clypeal spot is large.
By the way: the black and red belt color in the karate photo is not a sign of status, but a mean in contest, to can distinghuish fighter A and fighter B. The status belt colors are white, yellow, green, blue, brown, black (or others, depeding from stile of Karate).
P.s. And about number of genera: a genus is not defined by number of species in this genus.