Acoptodera (s. str.) subgen. n.

Description. As for genus, but labrum slightly transverse, with rounded sides and deeply incised apical margin with 6 apical setae (Fig. 7a); head without wrinkles, medial part of head with large setiferous pores bearing very long setae; scape (first antennomere) with 9–10 long additional setae; anterior emargination of pronotum widely interrupted in the middle; elytral edge serrate, with the fringe of very long and thick setae.