Austroagallia prachuabensis, C.A.Viraktamath, 2011

C. A. Viraktamath, 2011, Revision of the Oriental and Australian Agalliini (Hemiptera: Cicadellidae: Megophthalminae) 2844, Zootaxa 2844, pp. 1-118 : 30-31

Austroagallia prachuabensis sp. nov.

Figs 144–147.

Color. Pale ochraceous. Two small round spots on vertex black; median stripe, inner margins of eyes, submarginal row of spots on fronto-clypeus, facial sutures, spot on ventral margin of antennal pits, pale-brownish. Ocelli brownish, margin on inner side marked with brown. Pronotum with pair of larger (compared to spots on vertex) black spots on posterior submargin, rest either pale ochraceous or suffused with pale brown or pale yellow on median line and along anterior margin. Scutellum with basal triangles either pale brown or yellow, posterior half paler than anterior half. Claval veins, inner claval cell and cubitus suffused with brown; other veins either suffused with pale brown or concolorous with tegmina. Tip of labium, claws and abdominal tergites medially piceous.

Morphology. Face as long as wide, shagreen. Pronotum finely punctured, less than twice as wide as long, anterior margin strongly convex, posterior margin very slightly concave in middle or straight. Scutellum shorter than pronotum.

Male genitalia. Pygofer simple, caudally triangularly produced. Styles as in A. sinuata , both inner and outer arms of equal length. Aedeagal shaft with lateral angulate, laminate expansions, apically pointed beyond gonopore; gonopore subapical. Anal collar process with dorsal broad tooth and ventrally drawn out into process directed ventrally and mesally, apex broad and crenulated ( Fig.145).

Measurements. Male 3.1 mm long, 1.00 mm wide across eyes. Female 3.4 mm long, 1.1 mm wide.

Material examined. THAILAND: HOLOTYPE ♂, Prachuab, 6.vii.1962, E.S. Ross & D. Q. Cavagnaro ( CAS) . PARATYPES: 3 ♂, 3 ♀, data as for holotype ( CAS) . Additonal material: 3 ♂, 4 ♀, INDIA: Karnataka: Bangalore ( UASB) ; 1 ♂, Mysore ( UASB) .

Remarks. A. prachuabensis closely resembles A. sinuata from which it can be distinguished by the following characters: (1) male subgenital plates slightly more elongate and pointed in A. prachuabensis compared to shorter and apically rounded plates in A. sinuata ; (2) anal collar process bears basally broad and stout upper denticle in A. prachuabensis compared to slender, basally narrow upper denticle in A. sinuata ; (3) apex of the anal collar hook forms a shallow concave curve ventrally in A. prachuabensis but it is deeply concave, almost U-shaped ventrally in A. sinuata ; (4) The lamellate aedeagal shaft process is broad in A. prachuabensis but it is comparatively narrow in A. sinuata .

Some specimens are lighter in color and lack the brown markings on the head and thorax.