Tambinia conus, Wang, Rong-rong & Liang, Ai-Ping, 2011

Wang, Rong-rong & Liang, Ai-Ping, 2011, Taxonomic review of the genus Tambinia Stal (Hemiptera, Fulgoromorpha, Tropiduchidae) with descriptions of four new species from the Pacific region, ZooKeys 132, pp. 13-31 : 18-20

Tambinia conus sp. n. Figs 1A2 A–H

Description.

Body length (from apex of vertex to tip of forewings): ♂ 6.5 mm (N=1).

Colour. General colour tawny yellow, vertex (Figs 1A, 2A) with two short reddish stripes, pronotum (Figs 1A, 2A) with a pair of orange spots outside lateral carinae, median carinae on vertex and pronotum orange, mesonotum (Figs 1A, 2A) with a pair of orange spots beside lateral carinae near posterior margin, genae (Fig. 2B) with orange patch between eye and lateral margin of frons, forewings (Figs 1A, 2D) with many reddish spots marked from basal part to nodal line, tips of spines on hind tibiae and tarsi black.

Head and thorax. Head (Figs 1A, 2A, 2B) projecting before eyes approximately median length of eye, strongly dorsoventrally depressed. Vertex (Figs 1A, 2A) slightly longer in middle than the widest breadth (1.1: 1), distinctly longer than pronotum at midline (1.6: 1); anterior margin projected at an obtuse angle in dorsal view, lateral margins ridged and converged anteriorly; median carina thin and percurrent, wit h a pair of short sublateral carinae basally between median carina and lateral margins; posterior margin straight. Frons (Fig. 2C) longer in middle than the widest breadth (1.4: 1), disc flat and smooth, covered with sparsely microsetae (Fig. 2B); lateral margins sinuous, diverging from apex, slightly concave at level of eyes, then diverging further to reach their widest point before converging to the clypeus; median carina slender, gradually thinning and obsolete posteriorly, almost reaching to frontoclypeal suture. Clypeus (Fig. 2C) triangular, with broad median carina. Pronotum (Figs 1A, 2A) distinctly shorter than mesonotum in midline (0.4: 1), carinae strongly ridged, lateral carinae diverging posteriorly, median carina distinct, reaching posterior margin. Pronotum and mesonotum together medially 2.2 times as long as median length of vertex. Hind tibiae each with 2 distinct lateral spines; spinal formula of hind leg 5 –5– 2. Forewings (Figs 1A, 2D) relatively elongate and narrow, 2.7 times as long as maximum breadth, with corium smooth, not granulate, Sc+R forking at 2/5 apical, Cu1 forking after level of junction of claval veins, cell Sc with a short cross vein at its apical angle, with 13 apical cells and 6 subapical cells, claval veins uniting basad of middle of clavus.

Male genitalia. Pygofer (Figs 2 F–H) narrow and relatively high, wider ventrally than dorsally, anterior margin moderately concave, posterior margin nearly straight on ventral half in lateral view. Anal tube (Figs 2F, 2G) distinctly elongate, surpassing to apex of gonostylus, ventral margin slightly bent ventrad in lateral view; lateral margins narrowing distad, apical margin distinctly forked in dorsal view; anal styles relatively short and stout, not surpassing apex of anal tube in dorsal view. Gonostylus (Figs 2F, 2H) very narrow, apical part dorsoposteriorly directed in lateral view; median conical process distinctly elongate and strong, sclerotized, nearly reaching to middle part of gonostylus in ventral view. Periandrium (Fig. 2F) distinctly short, ring-shape, with a long process directed caudad at ventral side, surround aedeagusat medially. Aedeagus (Fig. 2F) with shaft sinuate and apical half dorsoposteriorly directed in lateral view, apical part forking at endosoma, forming two process, which dorsal one distinctly longer than the ventral one; endosoma membranous, slightly expanded.

Material examined.

Holotype ♂, PAPUA NEW GUINEA: Madang Province, Finisterre Range, Teptep, stream NE of town, 2100-2560 m, 23 Mar 1989, Stop #89-40A, D. H. Kavanaugh and G. E. Ball collectors, PAPUA NEW GUINEA EXPEDITION-1989 (CAS).

Etymology.

This new species is named for the presence of a strong median conical process at apically inner margin of gonostylus (Figs 2F, 2H).

Distribution.

Papua New Guinea.

Remarks.

This species is similar to Tambinia languida Stål, 1859 collected from Sri Lanka, but can be distinguished from the latter in the vertex with two short reddish stripes, pronotum with a pair of orange spots outside lateral carinae, carinae of vertex and pronotum orange, mesonotum with a pair of orange spots beside lateral carinae near posterior margin, forewings with many reddish spots marked from basal part to nodal line and the frons with ratio of median length to the widest breadth 1.4:1 (in Tambinia languida , vertex and pronotum without pigmentation, mesonotum sometimes suffused with ochraceous, the frons with ratio of median length to the widest breadth 2:1, see Stål, 1859: 317; Melichar, 1914: 85).