New thagriine leafhoppers from the Oriental Region, with a key to 30 species (Homoptera: Cicadellidae: Coelidiinae)

Five new species of Thagria from the Oriental region are described and illustrated. These include melichari from Thailand, unidentata from Indonesia, marissae from southern China, bifida from Nepal, and insolentis from an undetermined locality in the Oriental region. There are presently 166 species in this large and unique genus. A key to males of 30 species is included.