Hyalessa China, 1925

Wang, Xu, Hayashi, Masami & Wei, Cong, 2014, On cicadas of Hyalessa maculaticollis complex (Hemiptera, Cicadidae) of China, ZooKeys 369, pp. 25-41 : 27-28

Genus Hyalessa China, 1925

Pomponia (Oncotympana) Stål, 1870: 710. Type species: Pomponia (Oncotympana) pallidiventris Stål

Oncotympana : Distant 1905: 60, 70. Type species: Pomponia (Oncotympana) pallidiventris Stål

Sonata Lee, 2010: 20. Type species: Oncotympana fuscata Distant

Type species.

Hyalessa ronshana China.

Body small to large, head including eyes wider than pronotum. Anterolateral pronotal collar not dentate. Medial pronotal collar about one-fourth to one-third the length of inner area. Wings hyaline; fore wing with 8 apical cells, with fuscous spots at bases of apical cells second, third, fifth, and seventh, a marginal series of minute pale fuscous spots near apices of longitudinal veins to apical cells in most species; hind wing with 6 apical cells. Male operculum wider than long, lateral margin roundly produced laterad, overlapped or nearly touching to the other one centrally. Male abdomen slightly shorter than distance from head to cruciform elevation. Posterior margin of male abdominal tergite III much wider than mesonotum. Timbal concealed by timbal cover in dorsal view; timbal cover globolised, projecting beyond corresponding lateral margin of abdomen. Aedeagus thick and curved apically; apex with pair of sclerotized lateral processes and pair of (membranous) saccate hooks between them. Uncal lobe large, separated from the other one distally or connected to the other one from near base to subapex.

Remarks.

This genus is closely similar to Oncotympana Stål in habitus, but differs from the latter in the following characteristics: pronotum about or more than twice as long as head; anterolateral pronotal collar not dentate; male operculum shorter than wide but very large; uncal lobes bifurcated; aedeagus very thick, with apex with a pair of sclerotized lateral processes and a pair of (membranous) saccate hooks between them.

Key to the species of Hyalessa