The gracilicornis group
The gracilicornis group is characterized by the following combination of characters: the pronotal puncturation much finer anteriorly than that posteriorly, the pronotal pubescence at midline directed posteriorly in apical 1/ 4 and anteriorly in basal ¾, the pronotal pubescence at posterolateral parts directed straight anteriorly (Fig. 9), the pronotal basal impression small and shallow, weakly visible and the posterior margin of tergite VIII with row of apical spines.