Abstract: This paper deals with 41 species of Meloidae belonging to 5 genera collected from Xinjiang Uygur Autonomous Region, among which 10 species are newly recorded from China. Of the five genera,there are 32 species (about 78% of the total number of species) belonging to the genus Mylabris. The faunal compositions include the Central Asian, Mongolian, European, Zhungel and palaearctic ingredients,among which about 56% (23 species) belong to the Central Asian ingredients. The cantharidin contents of 10 predominant species are analysed, and 7 species have been found to contain higher cantharidin contents and are of medical value.

Key words: Meloidae, Fauna, cantharidin, Xinjiang