Pomponia Stål, 1866

Thai, Pham Hong & Yang, Jeng-Tze, 2009, A contribution to the Cicadidae fauna of Vietnam (Hemiptera: Auchenorrhyncha), with one new species and twenty new records, Zootaxa 2249, pp. 1-19 : 8

Genus Pomponia Stål, 1866

Pomponia Stal, 1866 , Hem. Afr. IV, 6.

Type species: Dundubia linearis Walker, 1850 , List Hom., 1: 48.

The genus Pomponia is mainly distributed through the Oriental Region and contains 37 species ( Boulard, 2005b; Chou et al., 1997; Duffels and van der Laan, 1985; Metcalf, 1963b, Sanborn et al., 2007). This genus comprises a very heterogeneous group of species ( Duffels and Hayashi, 2006). Among them, species of the Pomponia linearis group defined by Duffels & Hayashi (2006) share the following characters: a broad pale transverse band across the postclypeus; acute lateral pygofer lobes; a trapezoidal uncus with medial incision suggesting the fusion of two short, broad lobes; and a pair of claspers, each with two spines, protruding from below the uncus.

Four described species occur in Vietnam: Pomponia linearis ( Walker, 1850) , Pomponia piceata Distant, 1905 , Pomponia lactea (Distant, 1887) , and Pomponia orientalis ( Distant, 1912) . Below we present a key to species of genus Pomponia from Vietnam, and describe a new species belonging to this species group.

Key to species of genus Pomponia from Vietnam

1(2) Opercula in male with outer margins sinuate and obliquely directed inwardly, apices narrowly rounded, inner margins widely separated .............................................................................................................................. P. orientalis

2(1) Opercula in male with the outer margins rounded .................................................................................................. 3

3(4) Body very large,length ≥ 35mm; uncus lobe with two spines................................................................................... 5

4(3) Body smaller, length <30mm; uncus lobe with one spine........................................................................... P. lactea

5(6) Posterior margin of opercula transverse; exterior margin of uncus lobe with small spine, interior margin with larger than spine......................................................................................................................................... P. linearis

6(5) Posterior margin of opercula acute ............................................................................................................................ 7

7(8) Exterior lobe of uncus with large spine, interior margin with smaller than spine..................................... P. piceata

8(7) Exterior and interior margin of uncus lobe with pair of spines the same length .................... P. backanensis sp.nov.