Plectris aeneofusca is a species of beetle of the family Scarabaeidae. It is found in Ecuador.
Adults reach a length of about 20âÂÂ22 mm. They are brown, with the pygidium and abdomen green. The whole body has a strong metallic sheen. The head is coarsely punctate and the frons is bristled posteriorly. The antennae are reddish-brown. The pronotum is extensively covered with yellowish-haired punctures and the elytra have numerous small spots of yellowish hairs. Interspersed among these are occasional longer, erect hairs.