Key to species of Enracius

Males of E. richardsi new species are unknown.

1 Clypeus glabrous (Fig. 8); clypeofrontal ridge arcuate (Fig. 11); ocular canthus with lateral margin continuous with clypeus (Fig. 11); elytral striae deeply impressed (Fig. 8); apical ridge of pygidium glabrous; body 19–21 mm long; central southern coastal Western Australia from Fitzgerald River to Mount Ragged (Fig. 14)............................................................................................... Enracius richardsi Hutchinson & Allsopp, new species

- Clypeus setose (Figs. 1, 5); clypeofrontal ridge linear (Figs. 1, 5); ocular canthus with lateral margin angular to clypeus (Figs. 1, 5); elytral striae finely impressed (Figs. 1, 5); apical ridge of pygidium setose; body 13.5–17.5 mm long; southeastern Western Australia from Caiguna to the border with South Australia (Fig. 14)................ Enracius longipes Dechambre, 1999