| abstract | A new species, Gamasodes pachysetis Yao & Jin sp. nov., is described based on deutonymphs and adults from Jiangsu and Taiwan provinces, China. A nominal species, Gamasodes spinigerTrÀgÄrdh, 1910, new to China, is redescribed also based on deutonymph and adults from Guizhou Province. A key to Gamasodes species of China is presented. |