Henanocerus lineatus

Zhang, Bin & Wang, Chin-Fah, 2018, Henanocerus lineatus gen. nov. and sp. nov., a new leafhopper feeding on Populus tomentosa Carrière from China (Hemiptera, Cicadellidae), Zootaxa 4442 (4), pp. 584-588: 587

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Henanocerus lineatus

sp. nov.

Henanocerus lineatus  sp. nov. ( Figs 1–18View FIGURE 1–4View FIGURE 5–18)

Male holotype. Coloration. Vertex with brown to dark brown maculae, face yellowish brown with several dark maculae on frons, frontoclypeus with several black stripes on lateral margin, anteclypeus, lora and gena pale yellowish brown. Pronotum grayish brown with pair of triangular black spots on anterior margin several black stripes on median portion and lateral margin. Mesonotum yellowish brown with basal triangles black. Scutellum with black macula on median region. Forewings grayish brown, veins dark brown with white spots. Legs brown with dark markings.

Male abdomen with pair of lobe-like basal apodemes on third segment.

Male genitalia. Pygofer narrow at base, ventral margin straight, posterodorsal margin rounded, ventral process with ventrally curved not reaching caudal margin. Processes of anal collar with two acute teeth. Subgenital plates with numerous fine setae along upper margin. Ventral margin of style with some small serrations, apex of dorsal margin with macrosetae along apical margin, the surface of median region bearing a row of fine lateral setae. Aedeagus shaft with two lamellate processes, each with lateral margins serrated.

Female. Second valvulae bearing approximately 15 teeth along dorsal margin.

Measurement (mm). Male: Length 5.8-6.3, face length 1.75–1.79, width 2.0–2.1; distance between ocelli 0.5–0.6; distance from ocellus to eyes 0.29–0.32; medial length of pronotum 0.7–0.75, width 1.75–1.83; scutellum length 0.7– 0.95, width 1.2–1.22, length of clypeus 0.43-0.45, width across base 0.25-0.28, width across apex 0.32-0.33. Female: body length 6.2–6.5, face length 1.78–1.82, width 2.2–2.3; distance between ocelli 0.6–0.63; distance from ocellus to eyes 0.33–0.39; medial length of pronotum 0.80–0.85, width 0.80–0.850; scutellum length 1.10–1.20, width 1.21–1.32, length of clypeus 0.49-0.51, width across base 0.3-0.31, width across apex 0.32-0.35.

Material examined. Holotype: ♂, CHINA: Henan province, Baiyunshan Mt. , 1600 m, 15-18. viii. 2008, collected by B. Zhang; paratypes: 6 ♂♂, 9 ♀♀, same date as holotype  .

Etymology. The specific epithet refers to the black markings on head and thorax.

Remarks. Numerous dark brown to black markings on the head and thorax, the pair of lamellate processes on the aedeagal shaft and a narrow ventral process on the pygofer distinguish this species from other species of Idiocerini  .