Pachycnema lineola is a species of beetle of the family Scarabaeidae. It is found in South Africa (Northern Cape, Western Cape).
Adults reach a length of about . They are similar to Pachycnema namaqua. The head and pronotum are black, the latter has a very distinct lateral margin of white scales in both sexes, but the anterior margin has none, and in the basal one there is a short median band of them above the scutellum which is densely scaly. The elytra are reddish brown and opaque. The abdomen and pygidium are clothed with white or flavous scales.