T. magnus group

Large to extremely large species (13–35 mm), body dark brown with reddish or reddish brown elytra (Figs. 106, 124). Head with interior ocular puncture situated far from inner margin of eye (Figs. 114, 119), ocular groove between interior ocular puncture and inner border of eye very short and shallow, temples with one large setiferous postocular puncture (Fig. 107, 125), labrum lobate (Figs. 115, 120).