Two new Parahiraciini planthoppers from Central Vietnam in the genera Gelastyrella and Pseudochoutagus (Hemiptera, Fulgoromorpha, Issidae)

Two new planthopper species of the family Issidae, tribe Parahiraciini, are described from Central Vietnam: <i>Gelastyrella vuquangensis</i> <b>sp. nov.</b> from Vu Quang National Park in Ha Tinh Province, and <i>Pseudochoutagus nuichuanus</i> <b>sp. nov.</b> from Nui Chua National Park in Khanh Hoa Province. Illustrations of habitus and terminalia of the new species are given, as well as a distribution map and photographs of live specimens and their habitat.