Tropidocephala lamellata Lv, Li, Zhang, Yang & Chen, 2025, sp. nov.
Creators: name: Lv, Sha-Sha
name: Li, Hong-Xing
name: Zhang, Yu-Bo
name: Yang, Lin
name: Chen, Xiang-Sheng
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Delphacidae
Tropidocephala
Tropidocephala lamellata

description: Tropidocephala lamellata sp. nov.
urn:lsid:zoobank.org:act: B622B879-B42B-4FC6-BE8F-3E7E0F0CD292
Figs 9–10
Diagnosis
The salient features of the new species include: vertex (Figs 9C, 10A) slightly longer than pronotum; middle carinae of vertex, pronotum and mesonotum (Fig. 9A, C) with short dark lines on both sides; forewing (Fig. 9F) without transparent spots, inner side of forewing crossveins without dark brown burl spots; genital styles (Fig. 10E, F) broad and lamellar, with a lamellar process; phallobase (Fig. 10G–H) 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.
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 • 1 ♀; Hainan Province, Diaoluoshan National Forest Park; 18°44′ N, 109°50′ E; 14 Apr. 2017; Yong-Shun Ding leg.; IEGU.
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) greenish-yellow, median carinae of vertex and mesonotum and tricarinate of pronotum each with short dark brown stripe on both sides. Frons (Fig. 9E) 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) and genae (Fig. 9B, D) dark brown or black. Antennae (Fig. 9A–E) 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) dark brown, inner side yellowish-white. Forewings (Fig. 9F) brown-black, base with turquoise yellow-green diagonal stripe.
HEAD AND THORAX. Vertex (Figs 9C, 10A) triangular, apical part round, longer in midline than wide at base (2.0:1). Frons (Figs 9E, 10B) 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, 10B) with first segment shorter than second segment about 1:1.9. Pronotum (Figs 9C, 10A) shorter than vertex about 0.7: 1 in midline. Mesonotum (Figs 9C, 10A) approximately equal length to pronotum and vertex combined, median carinae extend to terminal part of scutellum. Forewings (Fig. 9F) slightly narrowed apically, longer than maximal width (2.5:1).
MALE GENITALIA. Pygofer (Fig. 10C–D) 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) cylindric, without anal process, wider than long in lateral view, posterior margin oblique, anal style long and large. Genital styles (Fig. 10E–F) 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) 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).
description: Published as part of Lv, Sha-Sha, Li, Hong-Xing, Zhang, Yu-Bo, Yang, Lin & Chen, Xiang-Sheng, 2025, Review of the Chinese species of the genus Tropidocephala Stål, 1853 (Hemiptera: Fulgoromorpha: Delphacidae), with descriptions of two new species, pp. 114-154 in European Journal of Taxonomy 981 on pages 131-134, DOI: 10.5852/ejt.2025.981.2815, http://zenodo.org/record/15132598