Tropidocephala yunnanensis, Lv & Li & Zhang & Yang & Chen, 2025

Tropidocephala yunnanensis sp. nov.

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Figs 21–22 View Fig View Fig

Diagnosis

The salient features of the new species include: vertex ( Figs 21C View Fig , 22A View Fig ) slightly longer than pronotum; middle carinae of vertex, pronotum and mesonotum ( Fig. 21A, C View Fig ) with dark lines on both sides; inner side of forewing ( Fig. 21F View Fig ) crossveins without dark brown burl spots; medioventral process of pygofer ( Fig. 22C View Fig ) small, triangular; anal segment ( Fig. 22C View Fig ) with apical margin of two lateral angle round; genital styles ( Fig. 22F–G View Fig ) long and narrow, slightly wavy.

Etymology

The specific epithet name is derived from the name of the type locality, Yunnan Province.

Type material

Holotype

CHINA • ♂; Yunnan Province, Mengla County, Mohan Town ; 21°11′ N, 101°41′ E; 31 Aug. 2017; Yan Zhi leg.; IEGU.

GoogleMaps

Paratypes

CHINA • 16 ♂♂, 6 ♀♀; Yunnan Province, Yingjiang County, Nabang Town ; 24°45′ N, 97°34′ E; 18 Aug. 2018; Hong-Xing Li leg.; IEGU • 2 ♂♂, 2 ♀♀; Yunnan Province, Mengla County, Mohan Town ; 21°11′ N, 101°41′ E; 16 Jun. 2019; Feng-E Li leg.; IEGU GoogleMaps • 7 ♂♂, 1 ♀; Yunnan Province, Sun River National Forest Park ; 22°36′ N, 101°06′ E; 27 Jun. 2019; Hong-Xing Li; IEGU GoogleMaps .

GoogleMaps

Description

MEASUREMENTS. Body length including forewing: male 2.4–2.5 mm (N = 25), female 2.6–2.8 mm (N = 9).

COLORATION. Vertex and pronotum ( Fig. 21A–D View Fig ) deep tawny with greenish, mesonotum ( Fig. 21A–D View Fig ) deep tawny, median carinae of vertex, pro- and mesonotum each with dark brown stripe on both sides. Frons ( Fig. 21E View Fig ) light brownish yellow with virescent. Clypeus ( Fig. 21E View Fig ) yellowish. Apical part of rostrum ( Fig. 21E View Fig ) brown-black. Antennae ( Fig. 21A–E View Fig ) grayish yellow, apical part of first segment and apical and middle of second segment each with dark brown ring-like marking. Outer side of tegula dark brown, inner side tawny. Forewings ( Fig. 21F View Fig ) grayish white, transparent, faint yellowish brown spots or stripes along the longitudinal and transverse veins, a small dark brown spot on tip of each terminal cells.

HEAD AND THORAX. Vertex ( Figs 21C View Fig , 22A View Fig ) longer in midline than wide at base (1.3:1). Frons ( Figs 21E View Fig , 22B View Fig ) oblong, longer in middle line than wide at widest part (1.6:1), basal margin triangular, median carinae simple. Antennae ( Figs 21E View Fig , 22B View Fig ) with first segment shorter than second segment about 1:1.6. Pronotum ( Figs 21C View Fig , 22A View Fig ) shorter than vertex about 0.8: 1 in midline. Mesonotum ( Figs 21C View Fig , 22A View Fig ) longer than 1.6× pronotum and vertex combined, median carinae extend to terminal part of scutellum. Forewings ( Fig. 21F View Fig ) slightly broadened apically, longer than maximal width (2.5:1).

MALE GENITALIA. Pygofer ( Fig. 22C–D View Fig ) ventral margin longer than dorsal margin in lateral view, in posterior view with opening longer than wide, with short and triangular medioventral process, without lateroventral process. Anal segment ( Fig. 22C–E View Fig ) cylindric, without anal process, wider than long in lateral view, apical margin of two lateral angle round, anal style long and big. Genital styles ( Fig. 22F– G View Fig ) small, long and narrow, basal part wide, apical part narrow, apical margin serrated, convex outward at basal ½. Aedeagus ( Fig. 22H–I View Fig ) with phallobase, phallus wide and long, tubular, basal ⅓ wider, curved ventrally; phallobase slender, basal ⅔ wider, bend accordingly to phallus.

Host plant

Unknown.

Distribution

China (Yunnan Province).

Remarks

This species is similar to Tropidocephala touchi Kuoh, 1979 , but differs from the latter in: (1) anal segment broad, cylindric, apical margin of two sides rounded in posterior view (anal segment small, annular, apical margin of two sides triangular in posterior view in T. touchi ); (2) pygofer with short and triangular medioventral process (pygofer without short and triangular medioventral process in T. touchi ); (3) basal part of aedeagus without a arcuate slender process directed dorsad (basal part of aedeagus with a arcuate slender process directed dorsad in T. touchi ).