Tropidocephala sinuosa Yang & Yang, 1986

Tropidocephala sinuosa Yang & Yang, 1986

Figs 19–20 View Fig View Fig , Table 1 View Tab

Tropidocephala sinuosa Yang & Yang, 1986: 28 , fig. 14.

Tropidocephala sinuosa – Ding 2006: 176, fig. 85.

Material examined

CHINA • 4 ♂♂, 2 ♀♀; Hainan Province, Datian National Natural Reserve ; 19°06′ N, 108°47′ E; 14 Apr. 2013; Bin Li and Ji-Chun Xing leg.; IEGU GoogleMaps .

Redescription

MEASUREMENTS. Body length including forewing: male 3.5–3.7 mm (N = 4), female 3.9–4.2 mm (N = 2).

COLORATION. General color light yellow to orange ( Fig. 19A–B View Fig ). Forewings ( Fig. 19F View Fig ) transparent, yellowish brown, with large yellow spot near the middle, smoky brown band near apex.

HEAD AND THORAX. Vertex ( Figs 19C View Fig , 20A View Fig ) triangular, apex far out in front of eyes, longer in midline than wide at base (2.8:1). Frons ( Figs 19E View Fig , 20B View Fig ) nearly diamond-shaped, widest in middle, base obviously narrower than end, longer in middle line than wide at widest part (2.7:1), with obvious median carinae. Antennae ( Figs 19E View Fig , 20B View Fig ) with first segment shorter than second segment about 1:2.1. Pronotum ( Figs 19C View Fig , 20A View Fig ) shorter than vertex about 0.3: 1 in midline. Mesonotum ( Figs 19C View Fig , 20A View Fig ) longer than 0.6× pronotum and vertex combined, median carinae extend to terminal part of scutellum. Forewings ( Fig. 19F View Fig ) slightly broadened apically, longer than maximal width (2.6:1).

MALE GENITALIA. Pygofer ( Fig. 20C–D View Fig ) ventral margin longer than dorsal margin in lateral view, in posterior view medioventral process small, lamellar, lateral margins with long spiny process. Anal segment ( Fig. 20C–E View Fig ) large, without anal process, longer than wide in lateral view, anal style long and large. Genital styles ( Fig. 20F–G View Fig ) slender, undulant, apical part cuspidal, with triangular process at basal ⅓. Aedeagus ( Fig. 20H–I View Fig ) with phallobase, phallus slender, tubular, curved ventrally medially, tapering to apex; phallobase wide and long, bend accordingly to phallus, basal part with slender process, apex of right side with lobate process toward ventrally.

Host plant

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

Distribution

China (Hainan, Taiwan provinces).