Larva: A typical C-shaped creamy white grub with a yellowish-brown head. Less than 25 millimetres in length at maturity; occurring in the fibrous root zone of host plants. The V-shaped arrangement of the last two rows of spines on the last body segment distinguishes this grub from all others.

Pupa: About the same size as the adult and somewhat resembling the adult except that the legs, antennae and wings are closely folded to the body. The body, which at first is a pale cream colour, gradually becomes tan and finally the metallic green of the adult. The pupae are found about 5-8 centimetres beneath the soil surface.

Adult: Oval outline from above, almost 10 millimetres long and 6 millimetres wide, abdomen, thorax and head metallic green with metallic copper-brown wing coverings and contrasting white tufts of hair along the sides and rear of the abdomen, active on warm sunny days from late June to late summer.