Abstract
BACKGROUND: Gaurenoglaea is a genus belonging to the tribe Xylenini. Since its establishment more than ten years ago, this genus has included only two species. NEW INFORMATION: A new species of the genus Gaurenoglaea Ronkay, Ronkay, Gyulai & Hacker, 2010, G.medogensis sp. nov. is described and illustrated from Xizang Autonomous Region, south-western China. The new species can be distinguished from the previous Gaurenoglaea species by the differences of forewing cilia and aedeagus. A key to the Gaurenoglaea species, based on morphology, is provided.