(after Gross 1975): Rather elliptical in outline, convex above and below, lateral margins of head, pronotum, corium and abdomen denticulate. Above with numerous black bristly hairs, abdomen below with whitish finer hairs. Head rather strongly deflexed, grooves on either side of anteclypeus extended posteriorly to at least level of middle of eyes. On the lateral margins in front of each eye a prominent flattened process produced exteriorly and terminating in about 4-5 spines, in front of this the lateral and anterior margins of the juga denticulate.