Sarimini from Vietnam: first record of the genus Tetrichina with a new species, and a new species of Dactylissus (Hemiptera, Fulgoromorpha, Issidae)

Two new planthopper species of the family Issidae, tribe Sarimini are described from Central Vietnam. Dactylissus sinuatus Constant & Pham, sp. nov. from Hon Ba Nature Reserve in Khanh Hoa Province, represents the second species of the genus Dactylissus Gnezdilov & Bourgoin, 2014 so far known only from Hon Ba, and Tetrichina honbana Constant & Pham, sp. nov. from Hon Ba Nature Reserve, Nui Chua National Park in Khanh Hoa Province and Ta Kou Nature Reserve in Binh Thuan Province, represents the first record of the genus Tetrichina Chang & Chen, 2020 in Vietnam.

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.