Phlyctinus callosus, commonly known as the African black beetle, is a species of insect belonging to the family Scarabaeidae. It is native to southern Africa and is considered a major pest in agricultural and horticultural crops. The adult beetles are small, measuring around 10-12 mm in length, and have a shiny black body. The larvae of Phlyctinus callosus feed on the roots of various plants, causing damage to the crops.