Six specimens of Macroglossinae bat, which were collected from Mengla County （Bubeng and Mamushu), Xishuangbanna, Southern Yunnan, China in March 1992 and December 1999, were compared with Macroglossinae species recorded in China. All of these specimens have very long tongues with a brush-like tongue tip and tridentate papillae in the center of the tongue, and forearms that are 47.31～51.01 mm long, which are similar to Eonycteris spelaea. However there are many differences from Eonycteris spelaea; a claw on the second digit, wing membrane ending at the base of the third toe, no groove on upper lip, a non-projected nose, very short tail covered by fur, rear skull significantly inclined posterior and down-wards, upper alveolar line spreads rearward clearly exceeding upper edge of lambdoidal ridge and reaching upper edge of interparietale and long slim teeth. These characteristics are identical with those of Macroglossus sobrinus recorded in Northeast India and Southeast Asia. They should represent a new genus and species records under Chiroptera, Pteropodidae, and Macroglossinae for China. This paper presents a detailed description of this species, and adds new information about Eonycteris spelaea.