A new cicada species of the genus Purana Distant, 1905 (Hemiptera: Cicadidae), with a key to the Purana species from Vietnam Author Pham, Hong-Thai Author Schouten, Marieke Author Yang, Jeng-Tze text Zootaxa 2012 3580 83 88 journal article 10.5281/zenodo.283058 8fb9cdfe-5932-4742-945e-41355ab62e26 1175-5326 283058 Genus Purana Distant, 1905 Purana Distant, 1905a : 60 . Type species: Dundubia tigrina Walker, 1850 (Malabar) . Formosemia Matsumura, 1917: 193 . Type species: Leptopsaltria apicalis Matsumura, 1907 ( Formosa ) . Diagnosis. Head including eyes as wide as mesonotum and as long as space between eyes; postclypeus prominent and convex, its base almost at right angles to anterior lateral angles of vertex; pronotum narrowed anteriorly, its lateral margins angulated or toothed; mesonotum much longer than pronotum; male abdomen moderately conical above, gradually attenuated posteriorly, longer than space between apex of head and base of cruciform elevation; tubercles on sternites 3 and 4 large and prominent; male opercula broader at base than long; rostrum reaching or a little passing posterior coxae; fore and hind wings hyaline.