69 Gnathoncus communis (Marseul, 1862) head, dorsal view 70 antennal club, ventral view showing sensory structures of the antenna 71 mentum, ventral view 72 prosternum 73 mesoventrite 74 lateral disc of metaventrite + metepisternum 75 protibia, dorsal view 76 ditto, ventral view 77 mesotibia, dorsal view 78 ditto, ventral view 79 metatibia, dorsal view 80 ditto, ventral view.