Gynaecoserica feresimplex is a species of beetle of the family Scarabaeidae. It is found in Thailand.
Adults reach a length of about 3.5âÂÂ4.4 mm. They have an oblong body. The dorsal surface is dark-yellowish brown, with the frons dark greenish brown and the antennae and legs yellow. Except for the shiny head, the dorsal surface is dull and sparsely setose.
The species name is derived from Latin fere (meaning nearly) and simplex (meaning simple) and refers to its similarity with Microserica simplex.