Aphenoserica fallax is a species of beetle of the family Scarabaeidae. It is found in Cameroon, Equatorial Guinea, Gabon, the Democratic Republic of the Congo and the Republic of the Congo.
Adults reach a length of about 8 mm. They are dull above, faintly shimmering below, with a yellow and black spotted elytra, a metallic-shining head shield, a greenish pronotum and yellow legs. The underside is without scales, while the upper side is only sparsely scaled.