Jinia Wei et Nie is endemic to Eastern China. Three species are known, J. fulvana Wei et Nie, J. zhengi Wei et Nie and J. nigromacula sp. nov. J. fulvana Wei et Nie is redescribed based on the holotype to correct errors in the original description. The new species is described, and it is similar to J. fulvana Wei et Nie, but differs mainly from the later in thorax with distinct black maculae, forewing entirely hyaline with apex not infumate, ovipositor as long as middle basitarsus and basal serrulae with distinct subbasal teeth. A distribution map of th...