Diastatotropis Lacordaire, 1866

Recognition. Body elongate. Head comparatively long, rostrum longer, extended apically, without depression in the middle, with one central longitudinal carina or without this carina (in case of D. nitidipennis Waterhouse, 1882 and D. planifrons Waterhouse, 1882). Eyes spherical, not emarginate. Antennae of males reach usually to posterior margin of pronotum or further, antennae of females shorter, not reaching posterior margin of pronotum. Funicle thin, antennal club 3-segmented or antennomeres gradually extended. Dorsal transverse carina of pronotum distinct. Medium- or large-sized species, from 6 mm (small specimens of D. rubricollis (Fairmaire, 1893)) to more than 18 mm ( D. olivaceus Waterhouse, 1877).