Gynaecoserica perdita is a species of beetle of the family Scarabaeidae. It is found in India (Sikkim).
Adults reach a length of about 4.3-5.4 mm. They have a brown, oval body with small dark brown and copper-green spots. The upper surface is dull, except for the shiny head, and sparsely hairy.
The species name is derived from Latin perditus (meaning lost).