Permocupedidae is a family of Protocoleopteran stem group beetles. They first appeared during the Early Permian, and were one of the dominant groups of beetles during the Middle Permian. They became rare in the Late Permian, with only one species known from the Triassic, from the Middle Triassic (Anisian) Röt Formation of Germany. They are thought to have been xylophagous (wood eating), which is presumed to be the ancestral ecology of beetles.