Petaurista siangensis
Range
Arunachal Pradesh, north-east India
The Mebo giant flying squirrel is one of three recently discovered giant flying squirrel species of Arunachal Pradesh in north-east India, along with the Mishmi giant flying squirrel and the Mechuka giant flying squirrel (Wikipedia, general species account).
The cached account is a single sentence and gives no description, measurements, habitat, diet or breeding information, so this entry is limited to where the species was found (Wikipedia, general species account).