Austroagallia Evans

C. A. Viraktamath, 2011, Revision of the Oriental and Australian Agalliini (Hemiptera: Cicadellidae: Megophthalminae) 2844, Zootaxa 2844, pp. 1-118 : 18-19

Genus Austroagallia Evans

Austroagallia Evans, 1935: 70 . Type-species: Austroagllia torrida Evans , by monotypy.

Peragallia Ribaut, 1948: 59. Type specis: Bythoscopus sinuatus Mulsant and Rey , by original designation; synonymy by Le Quesne, 1964: 73.

Color. Usually light brown in color with two round spots on vertex and two on posterior half of pronotum, black ( Fig. 5).

Morphology. Small leafhoppers. Head wider than pronotum. Hind margin of vertex sinuately curved laterally behind eyes. Ocelli distinctly closer to each other than to adjacent eyes, situated in deep depressions facing laterally. Fronto-clypeus rather narrow, surface shagreen and face usually not forming single convex surface. Clypellus slender, elongate. Gena narrow and elongate. Pronotum arcuate often with punctures. Forewings with three anteapical cells, inner anteapical cell opened basally. No cross vein between claval veins. Forefemora with intercalary setae arranged in arched row, AV setae not prominently stout. Macrosetae of hind tibia PD 6±1, AD 6±1, AV 5±1. Hind basitarsus with two rows of spine-like setae ( Fig. 34) on planta (except in A. robusta ) and one platella on distal transverse row.

Male genitalia. Pygofer lobe either smoothly rounded or dorsocaudally produced into rounded lobe. Styles slender distally forked with inner arm either as long as or shorter than outer arm. Aedeagus asymmetrical, either with laminate processes or with finger-like short apical or subapical or both processes. Preatrium usually poorly developed. Gonopore apical or subapical. Anal collar well developed, either distally rounded with crenulate border or strongly hooked or branched.

Female genitalia. Hind margin of seventh sternite usually straight or slightly sinuate, ninth sternite often well sclerotized. First pair of valvulae with elongate, alveolate sculpturing occupying more than half length, submarginal in middle section ( Figs 45, 46). Second pair of valvula with dorsal surface toothed, some teeth bearing denticles, dorsal margin of toothed area bisinuate ( Figs 47–50).

Distribution. Australian, Afrotropical, Oceanic, Oriental and Palaearctic.

Remarks. This genus closely resembles Igerna Kirkaldy. It can be distinguished from the latter by the following combination of characters: (1) face not forming an even regular convex surface; (2) ocelli situated in comparatively deep depressions and prominent; (3) gena comparatively narrow; (4) frontoclypeus comparatively narrow; (5) anal collar of male with distally hooked or branched or with crenulated border; (6) aedeagus with rather weakly developed preatrium and strongly asymmetrical. Coloration is very uniform except in darker specimens (even in the same species) additional smaller spots anterior to pronotal spots may be found, the head pronoutm and forewings are marked with additional brown markings. The genus also shares the sinuate hind margin of vertex with Stonasla White , Nehela White , Japanagallia Ishihara , and the New World Brasopsis Linnavuori and Agalliopsis Kirkaldy. It differs from Stonasla in not having the gena laterally expanded and from Nehela , Japanagallia and Agalliopsis in having asymmetrical male genitalia. The genus Brasopsis is known only from the unique female type.