Chinaocerus dentaedeagus, Li & Wang & Wang & Dai, 2022

Li, Min, Wang, Jiajia, Wang, Xianyi & Dai, Renhuai, 2022, Description of a new species of the leafhopper genus Chinaocerus (Hemiptera: Cicadellidae) from Yunnan, China, Zootaxa 5190 (3), pp. 431-437 : 433

Chinaocerus dentaedeagus sp. nov.

Figs 13–21

Description. Body length (including tegmina): male, 5.0– 5.2 mm, female, 5.4–5.5 mm. Coloration. General color yellow green. Crown ( Figs. 13, 15 ) anterior margin with pair of distinct but small black spots, eyes ( Figs. 13, 15 ) brown, ocelli ( Figs. 13, 15 ) black. Face ( Fig. 15 ) dull yellow. Pronotum ( Fig. 13 ) olive green, anterior triangles small. Mesonotum ( Fig. 13 ) yellow, anterior triangles black, pair of small round discal spots anterad of scutellar suture. Forewings ( Fig. 13 ) brown, veins dark brown. Legs ( Fig. 14 ) yellow.

Male dorsal basal abdominal apodemes ( Fig. 16 ) shorter than ventral ones and attaining posterior margin of sternite III.

Male genitalia. Pygofer ( Fig. 17 ) with posteroventral margin obtusely emarginate, apex acutely angulate in lateral view. Anal tube processes moderately slender and nearly straight, extended 2/3 distance to pygofer apex. Subgenital plate ( Fig. 17 ) narrow and elongate, with long fine setae on apical margin. Connective ( Fig. 18 ) Yshaped, with long stem. Style ( Fig. 19 ) curved dorsally with acute indentation just distad of lateral lobe, with few short apical setae in lateral view. Aedeagus shaft ( Figs. 20, 21 ) straight for most of length in lateral view, expanded distally in posterior view with laterall lamella finely dentate, apex acute in lateral and posterior view, with one pair of slender lateral preapical processes extended ventrolaterad to basal half of shaft.

Measurements (mm). Male: body length 5.0–5.2, face length 1.1–1.2, width 1.3–1.4; distance between ocelli 0.70–0.80; distance fromcellus to eyes 0.20–0.30; medial length of pronotum 0.50–0.55, width 0.80–0.85; scutellum length 0.80–0.85, width 0.70–0.75.

Type material. Holotype, ♂, Xinping County, Mt. Ailao , Yunnan Province, China (101° 30′ 34″ E, 23° 58′ 06″ N; H: 2071 m), 4–5 June 2019, coll. Xianyi Wang & Qin Zuo. Paratypes, 2♂♂, Pingbian County, Mt. Daweishan , Yunnan Province, China. (101° 41′ 18″ E, 22° 59′ 12″ N; H: 1500 m), 14–16 June 2019, coll. Xianyi Wang & Jiajia Wang. 2♂♂, Yingjiang County, Yunnan Province, China (97° 39′ 56″ E, 24° 35′ 57″ N; H: 1385 m), 30 May 2019, coll. Xiaoling Zhou & Chao Zhang. 1♂, Lvchun County, Mt. Huanglianshan , Yunnan Province, China. (102° 17′ 27″ E, 22° 56′ 03″ N; H: 1815 m), 8–9 June 2019, coll. Jiajia Wang & Chao Zhang. ( No. IDW20017) .

Remarks. The new species is similar to C. shii , but it can be distinguished from the latter by the serrate lateral margins and single pair of elongate lateral processes of the aedeagus.

Etymology. The new species name is derived from the words “ dent- ” and “ aedeagus ”, referring to the aedeagus subapex with dentate lamellar.

Distribution. China (Yunnan province). ( Fig. 22 ).

Figures

FIGURE 22. Geographical distribution of Chinacerus

FIGURES 13–21. C. dentaedeagus sp. nov. 13. adult, dorsal view; 14. adult, lateral view; 15. face; 16. dorsal and ventral abdominal apodemes, dorsal view; 17. male pygofer and male subgential plate, lateral view; 18. connective, dorsal view; 19. style, dorsal view; 20. aedeagus, dorsal view; 21. aedeagus, lateral view.