Tropidocephala dingi Sun, Yang & Chen, 2014

Figs 3–4, Table 1

Tropidocephala speciosa Ding, 2006: 167, fig. 78.

Tropidocephala dingi Sun, Yang & Chen, 2014: 44, figs 1–12.

Material examined

CHINA • 2 ♂♂; Hainan Province, Diaoluoshan National Forest Park; 18°44′ N, 109°50′ E; 13 Aug. 2015; Zheng-Xiang Zhou, Qiang Luo and Ya-Lin Yao leg.; IEGU • 1 ♂, 1 ♀; Hainan Province, Bawangling National Forest Park; 19°04′ N, 109°07′ E; 24 Aug. 2015; Zheng-Xiang Zhou leg.; IEGU • 1 ♀; Hainan Province, Yinggeling National Natural Reserve; 19°02’N, 109°34′ E; 7 Apr. 2017; Hong-Xing Li leg.; IEGU • 1 ♂; Hainan Province, Diaoluoshan National Forest Park; 18°44′ N, 109°50′ E; 14 Apr. 2017; Yong-Shun Ding leg.; IEGU • 7 ♂♂, 2 ♀♀; Hainan Province, Baisha Li autonomous County, Qifang Town, Xinjian Village; 19°15′ N, 109°19′ E; 16 Apr. 2017; Hong-Xing Li leg.; IEGU .

Redescription

MEASUREMENTS. Body length including forewing: male 3.1–3.5 mm (N = 11), female 3.5–3.8 mm (N = 4).

COLORATION. General color deep yellow (Fig. 3A–B). Vertex, pronotum and mesonotum (Fig. 3A–D) deep yellow, outer margins of vertex turquoise, median carinae of vertex, pronotum and mesonotum foul-white, lateral carinae of pronotum foul-white, each carinae with dark brown stripes on both sides. Frons (Fig. 3E) orange-red, apical part turquoise, outer margin and median carinae foul-white. Clypeus (Fig. 3E) yellowish. Genae (Fig. 3B, D) dark red. Eyes (Fig. 3A–D) dark brown, ocelli reddish brown. Antennae (Fig. 3A–E) light yellowish brown, apical part of first segment, apical and near middle parts of second segment with black brown ring-like stripes. Forewings (Fig. 3F) light yellowish brown, basal ⅓ with large dark brown spot, 2 large transparent spots near basal and middle parts, apex of each apical cells with transparent spot, 3 dark brown burl spots in central crossveins, burl spots with several white granular processes, Sc 2, R 1, Rs of terminal part with small dark brown spots. Front and middle legs coxa (Fig. 3B, D) light yellow, rest orange yellow, hind legs dark yellowish-white.

HEAD AND THORAX. Vertex (Figs 3C, 4A) triangular, longer in midline nearly equal to base width. Frons (Figs 3E, 4B) elliptic, base obviously narrower than end, longer in middle line than wide at widest part (1.9:1), median carinae simple. Antennae (Figs 3E, 4B) with first segment shorter than second segment about 1:2.0. Pronotum (Figs 3C, 4A) shorter than vertex about 0.8: 1 in midline. Mesonotum (Figs 3C, 4A) longer than 1.3× pronotum and vertex combined, median carinae extend to terminal part of scutellum. Forewings (Fig. 3F) slightly broadened apically, longer than maximal width (2.8:1).

MALE GENITALIA. Pygofer (Fig. 4C–D) ventral margin longer than dorsal margin in lateral view, posterior margin undulant, in posterior view with opening longer than wide, with broad lamellar medioventral process. Anal segment (Fig. 4C–E) ring-like, dorsal margin concave, without anal process, two lateral angles wide and convex, anal style long. Genital styles (Fig. 4F–G) broad lamellar, dorsal side with a long fingerlike process, directed outward, inner apical angle with a small angular process, outer apical angle broad and round, basal angle with long fingerlike process, tapering to apex. Aedeagus (Fig. 4H–I) with phallobase, phallus slender, tubular, curved ventrally medially, apical part cuspidal; phallobase wide and long, apical ⅔ ventrally curved, bend accordingly to phallus, apical part round.

Host plant

Miscanthus sp. ( Poales, Poaceae).

Distribution

China (Hainan, Yunnan provinces).