Caknesia sichuanensis, Zhang, Yalin & Huang, Min, 2006

Zhang, Yalin & Huang, Min, 2006, First report on the leafhopper genus Caknesia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Typhlocybini) from China, with description of a new species, Zootaxa 1223, pp. 65-68 : 66-68

Caknesia sichuanensis sp. nov.

Figs 1–13

Description

Head and upper side of thorax blackish brown, with yellow pattern as in Fig.1 . Face blackish brown, antennae yellowish. Ocelli not clearly visible. Abdomen black, with two light spots on 7th and 8th sternites medially. Legs yellowish. Forewing mostly brown, with whitish pattern on clavus, basal 2/3 of corium and remaining apical 1/3 ( Fig.2 ). Veins AA, CuA, and M (except apically), yellowish. Dark patch on light wax­field varying in length intraspecifically.

Male genitalia: Pygofer lobe with bent mesad extension on upper angle ( Figs 6, 7 ). Subgenital plate gradually narrowing from base to apex, with termination narrowed, bend dorsad ( Figs 9, 10 ). Caudal part of paramere tapering and somewhat sinuate, slightly broadened subapically ( Fig.11 ). Aedeagus with subtrianglar protrusion between dorsal apodeme and shaft ( Fig.13 ); shaft short, with a pair of long processes arising basally, decorated with sculpture on distal 1/3 ( Fig.12 ).

Measurement: Male 2.91 mm, female 2.88 mm long, including tegmen.

Type materials

Holotype: ♂, CHINA: Sichuan province: Mt. Emei, Alt. 1600 m, on Urticaceae , 31. x. 1999, coll. I. Dworakowska; paratypes, 4♂ 25Ψ, same date as holotype; 1♂, Alt. 800 m, 30. x. 1999; 1Ψ, Alt. 1300 m, 1. xi. 1999; 1♂, Alt. 600 m, 2. xi. 1999; 1♂, Alt. 700 m, 2. xi. 1999; all of above coll. I. Dworakowska; 1Ψ, Qingyingge, Alt. 1600 m, 11. ix. 1988, coll. Shulin ZHENG, Qiuyuan XU and Jingruo ZHOU.

Notes

The new species resembles C. wajha in color pattern, but can be distinguished from the latter by the structure of the male genitalia. In the new species the mesal protrusion of pygofer lobe is smaller and situated on the caudo­dorsal angle ( Figs 6, 14 ); and its aedeagal shaft is short, with a membranous termination, paired long basal processes, and an unpaired large dorsal protrusion ( Figs 13, 15 ).

Etymology

The specific name refers to the type locality of the species (Sichuan province).

Figures

FIGURES 1 – 15. 1 – 13: C. sichuanensis sp. nov. 1. Head, pronotum and scutellum in dorsal view. 2. Forewing. 3. Abdominal apodemes. 4. Male genital capsule, lateral view. 5. Paramere, connective, subgenital plate and sternite 9, dorsal view. 6. Male pygofer, lateral view. 7. Hind part of male pygofer, lateral view. 8. Connective. 9. Subgenital plate, dorsal view. 10. Apical part of subgenital plate. 11. Paramere. 12. Aedeagus, posterior view. 13. Aedeagus, lateral view. 14 – 15: C. wajha (after Dworakowska, 1994). 14. Male pygofer, lateral view. 15. Aedeagus, lateral view.