Scaphoideus trilobatus, Viraktamath, C. A. & Mohan, G. S., 2004

Viraktamath, C. A. & Mohan, G. S., 2004, A revision of the deltocephaline leafhopper genus Scaphoideus (Hemiptera: Cicadellidae) from the Indian subcontinent, Zootaxa 578, pp. 1-48 : 42-43

Scaphoideus trilobatus sp. nov.

Figs 198–205 .

Brownish ochraceous. Vertex ochraceous with marginal dark brown stripe, broken at places to form spots, a transverse band across eyes orange. Face ochraceous with upper half with a series of five transverse bands dorsad of bases of antennae. Pronotum with a darker short anterior band and an indistinct transverse band in posterior half. Scutellum paler in posterior half with lateral marginal fuscous spots. Front wing brownish hyaline with white transparent spots. A spot on costa at basal 0.33, veins at apical half of front wing, spots on clavus, a larger spot in apical cells, and marginal band apically, all dark brown.

Head narrower than pronotum, triangular, obtusely angled in front with rather sharp margin separating face from vertex. Vertex shorter than inter­ocular width, disk depressed, with a transverse impressed line across inner margins of ocelli, area anterior to line dull, region posterior to it polished.

Male genitalia: Pygophore longer than high, caudal lobe rounded, ventral margin convex, a ventral forked sclerotized band placed obliquely in caudal half. Subgenital plate triangular, 3.4 times as long as broad at base, very narrow in distal 0.33, five long setae in an arc in basal half. Style broad at base, preapical lobe well­developed, apophysis slender, elongate, rather straight with serrated ventral margin and a subapical triangular prominence. Connective with a dorsal keel, stem longer than arms, paraphyses bladelike, close together, curved caudo­dorsally in lateral aspect with overlapping distal tips. Aedeagus with well­developed triangular platelike dorsal apodeme, shaft tubular, flanked laterally by lamellate processes, shorter than shaft; gonopore apical.

Measurements: Male 6.80 mm long and 1.55 mm wide across eyes.

Material examined: MYANMAR: Holotype ɗ, N.E. BURMA: Kambaiti, 7000ft (2123m), 20.v.1934, R. Malaise, Brit. Mus. 1935­630 ( BMNH). Paratype: 1ɗ, data as holotype ( BMNH).

Remarks: S. trilobatus shares the structure of the paraphyses with that of coronatus Kitbamroong and Freytag. It can be readily distinguished from the other species of Scaphoideus by the impressed line on the disc of the vertex. It differs from coronatus in the shape of the aedeagus, subgenital plate, and curvature of the paraphyses.

Figures

FIGURES 193 – 205.. Species of Scaphoideus. 193 – 197. S. stigmaticus Distant. 193. Male pygophore; 194. Valve, subgenital plate and style, dorsal view; 195. Aedeagus, lateral view; 196. Same, caudal view; 197. Female ovipositor of holotype. 198 – 205. S. trilobatus sp. nov. 198. Caudal lobe of male pygophore; 199. Subgenital plate; 200. Style; 201. Apophysis of style; 202. Connective and paraphyses; 203. Same, lateral view; 204. Aedeagus lateral view; 205. Same, caudal view. Scale line indicates 0.1 mm.