Adults are oblong oval, reddish-brown and covered with cream-coloured, dense scale-like setae which give them an overall greyish colour. The body is from 10-12 mm long (McQuate and Jameson, 2011b). Larvae are white, C-shaped grubs with a conspicuous head and short legs (Mau and Kessing, 1991). Pupae are 6.0-12.0 mm long, and covered with dense, short setae (Habeck, 1964). Eggs are oval, 1.5 x 1.0 mm, and white, becoming duller before hatching (Habeck, 1963).