Comaserica costifera is a species of beetle of the family Scarabaeidae. It is found in Madagascar.
Adults reach a length of about 4 mm. They have a compact, egg-shaped body. The upper and lower surfaces are reddish-yellow, shiny and somewhat opalescent. The elytra are sparsely and shortly pale-ciliated. The upper surface is glabrous. The pronotum is fairly densely, finely and evenly punctate.