Identification of Canobolas

The recently published key to Australian genera of Chrysomelinae (Reid 2006a), with its correction (Reid 2006b), needs to be modified to accommodate Canobolas, as follows:

27(25) Length 3.5–7.0mm; anterior of prosternum laterally strongly obliquely ridged; eyes strongly transverse (width>2.8x length); gena with long ridge and deep groove between eye and mouth; third tarsomere not bilobed.... 27a - Length <3.5mm; anterior of prosternum without lateral oblique ridges, or these faintly indicated; eyes less transverse (width <2.8x length); gena with short ridge and groove, or not grooved; third tarsomere deeply bilobed, or apex rarely shallowly concave (some Geomela) ................................................................................................. 28 27a(27) Anterior of metaventrite and first ventrite without femoral plates; pygidium without median groove ................... ....................................................................................................................................................... Cyclonoda Baly - Anterior of metaventrite and first ventrite with femoral plates; pygidium with deep median groove..................... ................................................................................................................................................. Canobolas gen. nov.