A new species of the genus Ascodipteron Adensamer, 1896 (Diptera: Hippoboscidae) is described from Fujian, namely A. guoliangi sp. nov. Habitus and diagnostic details, as well as the attachment sites on the host, are documented with photographs. A detailed comparison of the new species with related species is provided and the new species is accommodated in the most recent key to the world species of Ascodipteron.