Chinaocerus tubulatus Zhang & Webb, 2018

Zhang, Bin, Chi, Wenfeng & Webb, M. D., 2018, Description of two new idiocerine leafhoppers of the genus Chinaocerus (Hemiptera: Cicadellidae) from southwestern China, Zootaxa 4457 (4), pp. 583-588 : 584-585

Chinaocerus tubulatus Zhang & Webb sp. nov.

( Figs 1–2 , 5–6 , 9–18 )

Male. Yellowish brown. Vertex ( Fig. 1 ) with two small black spots closer to adjacent eyes than to median line. Face pale yellow ( Fig. 5 ); eyes and ocelli lemon yellow. Pronotum ( Fig. 1 ) yellowish brown with pair of triangular black marks on anterior margin, posterior margin grayish white. Scutellum with basal triangles blackish brown, a round dark spot on either side of median line. Forewings ( Fig. 1 ) yellowish brown, veins dark brown except inner claval vein white.

Male genitalia. Pygofer lobe ( Figs 11–12 ) broad, ventral margin with 14–15 denticles; anal collar ( Figs 11– 12 ) with arms tapered to acute apex with subapical ventral tooth. Apophysis of style ( Fig. 13 ) bearing approximately 13–14 fine lateral setae distally. Aedeagus ( Fig. 16–17 ) with well developed dorsal apodeme and short preatrium; shaft tubular, dorsally curved with elongate dorsal lamella on each side and short elongate subapical process on each side above gonopore.

Male dorsal basal abdominal apodemes ( Fig. 10 ) shorter than ventral ones, attaining posterior margin of sternite III.

Female. Color ( Fig. 2 ) similar to male but face brighter yellow, triangular black marks on pronotum smaller and scutellum markings paler.

Female genitalia. Posterior margin of sternite VII convexly rounded medially. Second valvulae ( Fig. 18 ) regularly broadened in lateral view, bearing approximately 13 teeth along dorsal margin.

Measurements (mm). Male: body length 5.4–5.5, face length 1.43–1.5, width 1.8–1.85; distance between ocelli 0.44–0.55; distance from ocellus to eyes 0.32–0.33; medial length of pronotum 0.58–0.63, width 1.55–1.58; scutellum length 0.85–87, width 1.13–1.25. Female: body length 5.85–5.95, face length 1.55–1.56, width 1.93– 1.95; distance between ocelli 0.54–0.57; distance from ocellus to eyes 0.33–0.35; medial length of pronotum 0.63– 0.68, width 1.63–1.65; scutellum length 0.95–0.98, width 1.23–1.25.

Material examined. Holotype: ♂, China, Yunnan Province, Pianma County, 11. viii.2017, Bin Zhang . Paratypes: 1♂, 3♀♀, same date as holotype.

Host plant. Unknown.

Distribution. China: Yunnan.

Diagnosis. Chinaocerus tubulatus differs from other species by its more tubular aedeagal shaft.

Etymology. The specific epithet is derived from the Latin word tubulatus , referring to the tube-like aedeagal shaft.

Figures

FIGURE 1–4. Chinaocerus dorsal habitus. 1–2. Chinaocerus tubulatus; 3–4. Chinaocerus sexspinosus; 1, 3. Male; 2, 4. Female.

FIGURE 5–8. Chinaocerus face. 5–6. Chinaocerus tubulatus; 7–8. Chinaocerus sexspinosus; 5, 7. Male; 6, 8. Female.

FIGURE 9–18. Chinaocerus tubulatus sp. nov. 9. Forewing; 10. Dorsal and ventral abdominal apodemes, dorsal view; 11. Genital capsule, lateral view; 12. Genital capsule, dorsal view; 13. Style, lateral view; 14. Connective lateral view; 15. Connective ventral view; 16. Aedeagus, lateral view; 17. Aedeagus, ventral view; 18. Apex of second valvula of ovipositor, lateral view.