Aulacoserica grandis is a species of beetle of the family Scarabaeidae. It is found in Cameroon.
Adults reach a length of about 11âÂÂ12 mm. They are brown and shiny. The frons is rather sparsely punctured and the antennae are yellowish-brown. The pronotum is rather densely punctate and the elytra have rows of punctures, with the intervals shallow and somewhat more widely spaced than the pronotum.