Formallia ishiharai, C.A.Viraktamath, 2011

C. A. Viraktamath, 2011, Revision of the Oriental and Australian Agalliini (Hemiptera: Cicadellidae: Megophthalminae) 2844, Zootaxa 2844, pp. 1-118 : 52-54

Formallia ishiharai sp. nov.

Figs 238–243.

Color. Pale brown; two small subglobose spots on vertex black. Fuscous markings on pronotum and scutellum as in Fig 238. In one male these markings coalesce making pronotum fuscous with pale brown hind margin; face in male ochraceous; ocelli with ventral brown spot. Females with antennal sockets black. Facial sutures infuscated; obpyriform spot on clypellus and series of submarginal spots on clypeus fuscous; inverted Y on face and area mesad of eyes, orange-yellow; additional fuscous spots on face near eyes or ocelli. Prothoracic and meso thoracic pleura of female darker than in male; Apical half of seventh sternite of female translucent and fuscous.

Ninth tergal and sternal apodemes strongly developed.

Male genitalia. Spine like process of male pygofer short and directed ventrally. Subgenital plates longer than pygofer, apically pointed. Styles with inner arm longer than outer and apex of inner arm dorsally produced into short spine, corresponding ventral point knob-like; ventral surface of inner arm corrugated. Preatrium of aedeagus somewhat rhomboidal, dorsal apodeme longer than broad, outer margins sinuate and in caudal view about as long as aedeagal shaft; aedeagal shaft with microscopic scale-like sculpture on outer surface (not shown in Fig 241).

Female genitalia. Hind margin of seventh sternite broadly convex. Ovipositor with 3–4 pairs of setae on mesal margin of pygofer.

Measurements. Male 5.6 mm long, 1.51 mm wide across eyes. Female 5.7 mm long, 1.5 mm wide across eyes.

Material examined. HOLOTYPE ♂, TAIWAN: Arisan , 8.vi.1934 John L. Buys ( NMNH) . PARATYPES: 1 ♂, same data as holotype except 6.iv.1932 ( NMNH) ; 4 ♂, 6 ♀, Arisan, 2130 m, 19.viii.1947, J.L. Gressitt ( BPBM) .

Remarks. F. ishiharai closely resembles F. truncata (see below) in characters of the head, pronoutm and scutellum, but is smaller and more slender. It can be distinguished by the elongate and apically pointed male subgenital plates, short spine-like process of the dorso-caudal margin of pygofer, attenuated extension of dorsal point of the inner arm of the style, preapical gonopore and the characters of the connective. This species is named in honour of the late Dr. Tomotsu Ishihara, well known hemipterist from Japan.