title: First record of the cicada genus Semia Matsumura (Hemiptera, Cicadidae) from Vietnam, with the description of one new species and a key to species.
abstract: The first record of the genus Semia Matsumura (Cicadidae: Cicadinae, Cicadini) from Vietnam is presented. One new species, Semia spinosasp. n., is described from southern Vietnam. Photos of the adult, illustrations of the male genitalia, a distribution map and biological data are provided. A key to the species of Semia based on the male adults is also given.
authors.affiliation: Department of Insect Systematics, Institute of Ecology and Biological Resources (IEBR), 18 Hoang Quoc Viet St, Hanoi, Vietnam.
authors.forename: Hong-Thai
authors.initials: HT
authors.lastname: Pham
authors.forename: Masami
authors.initials: M
authors.lastname: Hayashi
authors.forename: Jeng-Tze
authors.initials: JT
authors.lastname: Yang