Formallia truncata, C.A.Viraktamath, 2011

C. A. Viraktamath, 2011, Revision of the Oriental and Australian Agalliini (Hemiptera: Cicadellidae: Megophthalminae) 2844, Zootaxa 2844, pp. 1-118 : 51-52

Genus Formallia nov.

Type-species: Formallia truncata sp. nov.

Morphology. Long, slender leafhoppers measuring 5 to 6 mm in length. Vertex medially shorter than next to eye, posterior margin evenly rounded. Ocelli closer to adjacent eye than to each other. Face slightly wider than long, clypellus broader apically, projecting beyond lora, transclypeal suture complete. Lora projecting beyond normal curvature of genae. Pronotum arcuate, disc finely but conspicuously punctured. Scutellum either as long as or shorter than median length of pronotum. Forewings with three anteapical cells and four apical cells, inner anteapical cell closed posteriorly by cross vein, claval veins separate ( Fig. 16). Forefemora with intercalary setae forming sinuate row, one AV seta near base of femur stout and long ( Fig. 27). Hind femoral macrosetae 2+1; hind tibial macrosetae PD 13±1, AD 8±1, AV 8±1. Hind basitarsus with two platellae on distal transverse row.

Male genitalia. Ninth tergum well sclerotized, often with well developed anterior apodemes in some species. Male pygofer usually caudo-ventrally terminated into triangular plate with acute ventral angle. Dorsal surface of male subgenital plates with long hair-like setae, lacking ventral stout setae (except in F. longistyla sp. nov.). Connective broad at base, somewhat triangular and apically bilobed. Aedeagal shaft U-shaped, without processes, preatrium variously developed, gonopore apical or subapical. Anal tube and anal style short, anal collar process well developed.

Female genitalia. Posterior margin of female seventh sternite usually membranous and translucent. First pair of valvulae rather straight, dorsal sculptured area about 0.75 length, sculpture papillose, papillae for most part rounded loosely packed in oblique rows except papillae on one or two dorsal rows arranged irregularly ( Figs 60, 61). Second pair of valvulae serrate in distal half, teeth rather prominent, ventroapical area crenulated, one prominent tubercle in basal half before ovipore ( Figs 62, 63).

Distribution. Taiwan.

Remarks. This genus resembles Onukigallia Ishihara but differs in the following characters: finely but conspicuously punctate pronotum, caudo-ventral triangular process of pygofer, apically bilobed triangular connective, long hair-like setae confined to dorsal surface of male plates and ventral surface without stout or long hair-like setae.