Gynaecoserica loisau is a species of beetle of the family Scarabaeidae.Global Biodiversity Information Facility It is found in Myanmar.
Description Adults reach a length of about . They have an oblong body. The dorsal surface is yellowish brown, while the frons and elytral margins are dark brown, and the antennae and legs yellow. Except for the shiny head, the dorsal surface dull, and sparsely setose.
Etymology The species is named after its type locality, Mt. Loisau.
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