Gynaecoserica ziyardamensis is a species of beetle of the family Scarabaeidae. It is found in Myanmar.
Adults reach a length of about 4âÂÂ4.4 mm. They have a moderately oblong body. The surface is dark reddish brown, with the elytra partly yellowish. The dorsal surface (except for the head) is dull and sparsely erectly setose.
The species is named after its type locality, the Zi Yar Dam.