Tropidocephala serendiba ( Melichar, 1903 )

Tropidocephala serendiba ( Melichar, 1903) View in CoL

Figs 15–16 View Fig View Fig , 23 View Fig , Table 1 View Tab

Orchesma serendiba Melichar, 1903: 95 View in CoL , pl. 2 fig. 5.

Orchesma signata Distant, 1912: 192 View in CoL .

Tropidocephala signata View in CoL – Muir 1921: 480.

Orchesma serendiba View in CoL – Metcalf 1943: 98.

Tropidocephala serendiba View in CoL – Fennah 1975: 85.

Material examined

CHINA • 1 ♂, 3 ♀♀; Yunnan Province, Mengla County, Menglun Town ; 21°55′ N, 101°15′ E; 12 Mar. 2017; Ying-Jian Wang leg.; IEGU GoogleMaps • 6 ♂♂, 6 ♀♀; Yunnan Province, Yingjiang National Wetland Park ; 24°41′ N, 97°56′ E; 16 Aug. 2018; Hong-Xing Li leg.; IEGU GoogleMaps • 1 ♂; Yunnan Province, Jinghong City, Menglong Town ; 21°35′ N, 100°41′ E; 21 Jun. 2019; Hong-Xing Li leg.; IEGU GoogleMaps .

Redescription

MEASUREMENTS. Body length including forewing: male 4.0– 4.2 mm (N = 8), female 4.2–4.5 mm (N = 9).

COLORATION. General ( Fig. 15A–B View Fig ) color rust yellow or rust brown. Vertex, pronotum and mesonotum ( Fig. 15A–D View Fig ) rust yellow. Middle carinae of vertex grayish yellow, with black fine line on both sides. Frons, genae and clypeus ( Fig. 15D–E View Fig ) rusty yellow with reddish. Eyes ( Fig. 15A–E View Fig ) dark brown, ocelli reddish brown. Antennae ( Fig. 15A–E View Fig ) light yellowish brown, apical part of first segment and middle part of second segment each with black brown ring-like stripe. Pronotum ( Fig. 15A, C View Fig ) yellowish-white near tegula, carinae gray, each with fine line on both sides. Middle carinae of mesonotum ( Fig. 15A, C View Fig ) light brown, with fine line on both sides, lateral carinae brown. Forewings ( Fig. 15F View Fig ) yellowish brown, 2 large transparent spots near basal and middle parts, apical ½ with multiple transparent spots, apical posterior area with dark gray marking, inner side of crossveins with 2 dark brown burl spots, burl spots with yellowish-white particles.

HEAD AND THORAX. Vertex ( Figs 15C View Fig , 16A View Fig ) triangular, longer in midline nearly equal to base width. Frons ( Figs 15E View Fig , 16B View Fig ) elliptic, widest in middle, base narrower than end, longer in middle line than wide at widest part (2.2:1), with obvious median carinae. Antennae ( Figs 15E View Fig , 16B View Fig ) with first segment shorter than second segment about 1:2.0. Pronotum ( Figs 15C View Fig , 16A View Fig ) shorter than vertex about 0.9: 1 in midline, with 5 carinae. Mesonotum ( Figs 15C View Fig , 16A View Fig ) longer than 1.4× pronotum and vertex combined, median carinae extend to terminal part of scutellum. Forewings ( Fig. 15F View Fig ) slightly broadened apically, longer than maximal width (2.6:1).

MALE GENITALIA. Pygofer ( Fig. 16C–D View Fig ) ventral margin longer than dorsal margin in lateral view, in posterior view with opening longer than wide, with rod-like medioventral process, simple. Anal segment ( Fig. 16C–E View Fig ) cylindric, without anal process, lateral margins deep concave in the middle, wider than long in lateral view, anal style long. Genital styles ( Fig. 16F–G View Fig ) broad lamellar, apex slightly wider than base, inner margin concave, inner apical angle with slender process toward inner side, basal angle with large process, tapering to apex, outer margin with many serrated processes. Aedeagus ( Fig. 16H–I View Fig ) with phallobase, phallus slender, tubular, curved ventrally medially, apical part cuspidal, protruding from dorsal of phallobase; phallobase wide and long, bend accordingly to phallus.

Host plant

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

Distribution

China (Yunnan Province), Vietnam.