Genus Emathia Stål, 1866

Emathia Stål, 1866: 8 . Type species: Emathia aegrota Stål, 1866 .

Cicadalna Boulard, 2006: 529 . syn. n. Type species: Cicadalna takensis Boulard, 2006 .

Diagnosis. Head about as long as pronotum, including eyes about as wide as base of mesonotum. Rostrum almost reaching the posterior coxae. Pronotum a little shorter than mesonotum, with barely developed lateral margin, not amplified. Abdomen short, about as long as forebody. Timbal covers incomplete, narrow and exposed inwardly; male opercula small, not extending beyond posterior margin of abdominal sternite II. Wings hyaline, with 8 and 6 apical cells on fore wing and hind wing, respectively.

Remarks. The genus Cicadalna was erected by Boulard (2006) for the type species, Cicadalna takensis . Later, the same authour reviewed Cicadalna and placed it in the tribe Cicadini of the subfamily Cicadinae (Boulard 2013) . However, the incomplete timbal covers, small opercula, shape of male genitalia and wing venation are inseparable between Cicadalna from Emathia, and no other sound morphological characters are available to separate these two genera. Accordingly, Cicadalna is treated here as a junior synonym of Emathia .