Pronotum broadened in anterior half by an obvious lateral flange extension; body shape relatively short; fore tibia with a very pronounced toothed flange; head with conspicuous hairs, a prominent depression at vertex, frons with complex sculpturing and eyes strongly angled outwards ventrally in frontal view; yellowish colouration at junction of meso- and meta sternal plates.

The listing of this species for SA is based on an early collection labelled as 'S. Australia' and determined by H.J.Carter. It is supported by a dead and degraded salt lake specimen collected from near Scrubby Peak and tentatively identified as C. amplicollis. A series of specimens with weakly bidentate pronotum margin flanges formerly placed with C. amplicollis are now treated as a different taxon (see C. sp. Bidentate pronotum).