Tropidocephala jiawenna Kuoh, 1979

Figs 7–8, Table 1

Tropidocephala jiawenna Kuoh, 1979: 175, fig. 1.

Tropidocephala jiawenna – Kuoh et al. 1983: 34, fig. 15. — Ding 2006: 170, fig. 80.

Material examined

CHINA • 6 ♂♂, 16 ♀♀; Yunnan Province, Hekou County, Hekou Town; 22°30′ N, 103°58′ E; 24 Nov. 2016; Hong-Xing Li, Yong-Shun Ding and Ya-Lin Yao leg.; IEGU .

Redescription

MEASUREMENTS. Body length including forewing: male 3.1–3.2 mm (N = 6), female 3.2–3.5 mm (N = 16).

COLORATION. Vertex (Fig. 7A, C) turquoise, lateral carinae dark brown, median carinae with 2 blackish brown stripes on both sides. Frons (Fig. 7E) cyan, apical part black. Genae (Fig. 7B, D) and clypeus (Fig. 7E) black. Rostrum (Fig. 7E) dark yellow. Ventral side of eyes (Fig. 7A–E) blackish brown, dorsal side tawny. Antennae (Fig. 7A–E) yellowish, apical part of first segment with dark brown ringlike marking, second segment with black brown stripe oblique from base to center, apical part with dark brown ringlike marking. Pronotum (Fig. 7A, C) bluish green with dark yellow, tricarinate with blackish brown stripe on both side, lateral posterior margin with black brown short oblique spot on both sides. Mesonotum (Fig. 7A, C) dark yellow with turquoise, median carinae with blackish brown stripe on both sides, outer side of lateral carinae each with 2 dark brown stripes, scutellum blackish brown. Forewings (Fig. 7F) straw-yellow, semi-transparent, basal and proximal parts each with blackish brown spot, inner side of crossveins with 3 dark brown burl spots, burl spot with lateral sides small, middle part big, apex of apical and postcostal cells with several different-sized transparent spots.

HEAD AND THORAX. Vertex (Figs 7C, 8A) triangular, longer in midline than wide at base (1.4:1). Frons (Figs 7E, 8B) oblong, base obviously narrower than the end, widest at middle level of eyes, longer in middle line than wide at widest part (2.0:1), with obvious median carinae. Antennae (Figs 7E, 8B) with first segment shorter than second segment about 1:2.1. Pronotum (Figs 7C, 8A) shorter than vertex about 0.8: 1 in midline. Mesonotum (Figs 7C, 8A) longer than 0.9 × pronotum and vertex combined, median carinae extend to terminal part of scutellum. Forewings (Fig. 7F) slightly broadened apically, longer than maximal width (2.8:1).

MALE GENITALIA. Pygofer (Fig. 8C–D) ventral margin slightly longer than dorsal margin in lateral view, in posterior view with opening longer than wide, with lamellar medioventral process, lateroventral process finger-like, directed inward. Anal segment (Fig. 8C–E) short, ringlike, without anal process, wider than long in lateral view, anal style long. Genital styles (Fig. 8F–G) wide, outer margin suddenly narrowed at basal ⅔, with small process; inner apical part with long rod-like process; basal part with slender fingerlike process, inner margin with serrated processes. Aedeagus (Fig. 8H–I) with phallobase, phallus slender, tubular, curved ventrally medially, apical part cuspidal; phallobase bend accordingly to phallus, basal part thick, tapering at apex, with fingerlike process at base ⅓.

Host plant

Imperata cylindrica (L.) P. Beauv. ( Poales, Poaceae).

Distribution

China (Guizhou, Yunnan provinces).