Igerna atrovenosa (Melichar) C.A.Viraktamath, 2011

C. A. Viraktamath, 2011, Revision of the Oriental and Australian Agalliini (Hemiptera: Cicadellidae: Megophthalminae) 2844, Zootaxa 2844, pp. 1-118 : 63

Igerna atrovenosa (Melichar) comb. nov.

Figs 286–288, 570, 584, 599.

Agallia atrovenosa Melichar 1903: 152 . SYNTYPE ♂, SRI LANKA (HNHM, examined); Distant 1908: 195–196, fig. 128.

Color. Ochraceous with black markings. One quadrate spot on either side of median line on vertex closer to each other than to adjacent eye, spot surrounding ocelli, antennal cavity, submarginal stripe on fronto-clypeus joined ventrally, clypellus except lateral margins, black; lateral areas of genae yellow; lateral frontal sucli, black. Pronotum with anterior margin, two elongate oval large spots on posterior half, black, often meeting anterior marginal band. Scutellum with basal triangles black. Forewings with claval cells dark brown, corial veins dark brown, more conspicuously so in male than in female, inner claval submargin yellow. Legs infuscated.

Morphology. Face slightly longer than broad. Ocelli closer to each other than to adjacent eyes.

Male genitalia. Caudal lobe of pygofer with marginal stout microsetae; caudo-ventral margin oblique, shallowly excavated in middle. Subgenital plates triangular, inner margins almost parallel sided, posteriorly narrowed, covered with stout microseate. Styles elongate, slender. Aedeagus with dorsal apodeme well developed, broader than shaft at base, shaft closely appressed to dorsal apodeme and of uniform width, arcuate, some times broadened in mid section dorsally, with apical pair of bifurcate, caudo-ventrally directed processes, gonopore subapical.

Female genitalia. Seventh sternite dark pigmented, hind margin rather straight.

Measurements. Male 4.5 mm long, 1.3 mm wide across eyes. Female 5.1 mm long, 1.5 mm wide across eyes.

Material examined. SRI LANKA: SYNTYPE ♂, Newara-Eliya, Pattipola ( HNHM). Additonal material : SRI LANKA: 1 ♂, 1 ♀, Pattipola , 25.viii.1979, Dworakowska ( UASB) .

Remarks. This is one of the larger agalliine leafhoppers of the Oriental region, others being I. violacea , I. aurora and I. fasciata (Osborn) . It can be readily recognised by the coloration and male genitalia. It closely resembles I. aurora sp. nov. and I. delineata sp. nov. (see below) but differs from the former in the structure of the style, subgenital plate and from the latter in the structure of the aedeagus.