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

Tropidocephala lamellata sp. nov.

urn:lsid:zoobank.org:act:B622B879-B42B-4FC6-BE8F-3E7E0F0CD292

Figs 9–10 View Fig View Fig

Diagnosis

The salient features of the new species include: vertex ( Figs 9C View Fig , 10A View Fig ) slightly longer than pronotum; middle carinae of vertex, pronotum and mesonotum ( Fig. 9A, C View Fig ) with short dark lines on both sides; forewing ( Fig. 9F View Fig ) without transparent spots, inner side of forewing crossveins without dark brown burl spots; genital styles ( Fig. 10E, F View Fig ) broad and lamellar, with a lamellar process; phallobase ( Fig. 10G–H View Fig ) with a fingerlike process at basal ⅓.

Etymology

The specific epithet is derived from the Latin word ‘ lamellata ’, referring to genital styles with a lamellar process.

Type material

Holotype

CHINA • ♂; Hainan Province, Qiongzhong Li and Miao autonomous County, Yinggen Town , Xinjian Village ; 19°01′ N, 109°54′ E; 14 Apr. 2017; Hong-Xing Li leg.; IEGU.

GoogleMaps

Paratypes

CHINA • 1 ♂; Hainan Province, Bawangling National Forest Park ; 19°04′ N, 109°07′ E; 24 Aug. 2015; Zheng-Xiang Zhou leg.; IEGU • 2 ♂♂, 8 ♀♀; Hainan Province, Qiongzhong Li and Miao autonomous County, Yinggen Town , Xinjian Village ; 19°01′ N, 109°54′ E; 14 Apr. 2017; Hong-Xing Li leg.; IEGU GoogleMaps • 1 ♀; Hainan Province, Diaoluoshan National Forest Park ; 18°44′ N, 109°50′ E; 14 Apr. 2017; Yong-Shun Ding leg.; IEGU GoogleMaps .

GoogleMaps

Description

MEASUREMENTS. Body length including forewing: male 3.2–3.4 mm (N = 4), female 3.6–3.9 mm (N = 9).

COLORATION. Vertex, pronotum and mesonotum ( Fig. 9A–D View Fig ) greenish-yellow, median carinae of vertex and mesonotum and tricarinate of pronotum each with short dark brown stripe on both sides. Frons ( Fig. 9E View Fig ) yellowish greenish or pale yellowish greenish, apical part brownish black, each side of middle carinae with long dark brown spot near base. Clypeus ( Fig. 9E View Fig ) and genae ( Fig. 9B, D View Fig ) dark brown or black. Antennae ( Fig. 9A–E View Fig ) light yellowish brown, apex of first segment and basal ½ of second segment with dark brown ringlike spot. Outer side of tegula ( Fig. 9A, C View Fig ) dark brown, inner side yellowish-white. Forewings ( Fig. 9F View Fig ) brown-black, base with turquoise yellow-green diagonal stripe.

HEAD AND THORAX. Vertex ( Figs 9C View Fig , 10A View Fig ) triangular, apical part round, longer in midline than wide at base (2.0:1). Frons ( Figs 9E View Fig , 10B View Fig ) oblong, widest in middle, base obviously narrower than end, longer in middle line than wide at widest part (2.0:1), with obvious median carinae. Antennae ( Figs 9E View Fig , 10B View Fig ) with first segment shorter than second segment about 1:1.9. Pronotum ( Figs 9C View Fig , 10A View Fig ) shorter than vertex about 0.7: 1 in midline. Mesonotum ( Figs 9C View Fig , 10A View Fig ) approximately equal length to pronotum and vertex combined, median carinae extend to terminal part of scutellum. Forewings ( Fig. 9F View Fig ) slightly narrowed apically, longer than maximal width (2.5:1).

MALE GENITALIA. Pygofer ( Fig. 10C–D View Fig ) ventral margin longer than dorsal margin in lateral view, in posterior view with opening slightly wider than long, outer margins each with triangular lamellar process, medioventral process round, lamellar. Anal segment ( Fig. 10C–D View Fig ) cylindric, without anal process, wider than long in lateral view, posterior margin oblique, anal style long and large. Genital styles ( Fig. 10E–F View Fig ) broad and lamellar, with lamellar process, apex wider, lateral margins curved; basal part with broad long lamellar process, tapering to apex, base wide and flat with many dentate processes. Aedeagus ( Fig. 10G– H View Fig ) with phallobase, phallus slender, tubular, curved ventrally near middle, apical part cuspidal, basal part slightly broad; phallobase long, bend accordingly to phallus, basal ⅓ with fingerlike process.

Host plant

Unknown.

Distribution

China (Hainan Province).

Remarks

This species is similar to Tropidocephala jiawenna , but differs from the latter in: (1) mesonotum with outer side of lateral carinae without dark brown stripes, scutellum greenish-yellow (mesonotum with outer side of lateral carinae with dark brown stripes, scutellum dark brown in T. jiawenna ); (2) forewing without transparent spots (forewing with many different-sized transparent spots in T. jiawenna ); (3) genital styles broad and lamellar, apical part lamellar (genital styles slender, apical part fingerlike in T. jiawenna ).