Anterior margin of prosternum and proepisterna distinctly excavated or flattened with raised outer margin; head at rest (hypognathous position) with at least rear of mouthparts covered by prosternum

Anterior margin of prosternum and proepisterna not as above, usually simple and meeting cervix well behind mouthparts


Colaspis lebasi Lef., headHermesia inermis Bow., lateral view of prothorax