The genus Geranomyia Haliday, 1833 is globally distributed, with 351 known species, of which 26 occur in China. Herein, an overview of the genus Geranomyia from Mount Jiulong, Zhejiang, China, is presented. Two new species are described and illustrated. Geranomyia jiulongensis sp. nov. and G. subablusa sp. nov. are distinguished from other Geranomyia species by the characters of the thorax and male genitalia. An updated key to the Geranomyia of China is presented.