Takama horna, Song, Yuehua & Li, Zizhong, 2011

Song, Yuehua & Li, Zizhong, 2011, First report on the leafhopper genus Takama Dworakowska & Viraktamath (Hemiptera: Cicadellidae: Typhlocybinae) from Hainan Island, China, with the description of two new species, Zootaxa 3127, pp. 64-68 : 65-66

Takama horna Song & Li sp. nov.

( Figs. 1–10 )

Body light yellowish-white. Crown ( Fig. 1 ) narrower than greatest width of pronotum, anterior margin slightly produced medially; posterior margin almost parallel to anterior margin. Vertex ( Fig. 1 ) light yellowish-white, with two brownish patches. Eyes ( Fig. 1 ) black. Pronotum ( Fig. 1 ) concolorous with vertex, with obvious large impressions medially, nearly diamond shaped; two small, indistinct light brownish spots anterad of large impressed pattern. Face ( Fig. 2 ) light yellowish-white; frontoclypeal area broad, with several dark transverse streaks on each side; anteclypeus nearly pentagonal, distinctly expanded medially. Scutellum ( Fig. 1 ) with brownish black basal triangles. Dorsal part of abdomen yellowish, and ventral part slightly brownish. Forewing ( Fig. 3 ) light yellowish white, semitransparent. Hindwing ( Fig. 4 ) colourless, transparent.

Abdominal apodemes ( Fig. 5 ) short and slim, extended to 3rd sternite, each with small branch at base.

Male genitalia: Pygofer with dorsal appendage ( Fig. 6 ) large and long, curved ventrally in lateral view with apex extremely sharp. Subgenital plate ( Fig. 7 ) with 4 basal macrosetae on outer margin. Style ( Fig. 8 ) long, apex distinctly curved. Aedeagal shaft ( Figs. 9, 10 ) tubular, sinuate, with pair of slim processes apically and appendage arising from upper part of atrial rim, bifurcate near middle. Apical part of upper atrial appendage ( Fig. 10 ) expanded in dorsal view, horn-like. Gonopore ( Figs. 9, 10 ) at apex, dorsad. Aedeagus ( Figs. 9, 10 ) with preatrium inconspicuous; basal penis process longer than aedeagal shaft, broadened in dorsal view.

Specimen examined. Holotype, male, China, Hainan Prov., National Nature Reserve, Mt. Wuzhi, 700 m, 14 July 2007, coll. Yujian Li.

Measurement. Body length male 3.5 mm.

Remarks. The new species is similar to T. similis Dworakowska (1979) , but differs in having the terminal part of the upper atrial appendage of the aedeagus ( Fig. 10 ) horn-like, the pygofer dorsal appendage ( Fig. 6 ) very long and curved ventrally, and the abdominal apodemes ( Fig. 5 ) small, with a slim branch at the base.

Etymology. The specific name is derived from the Latin word “ horna ” (cornute, horny), referring to the hornlike aedeagus appendage ( Figs. 9, 10 ).

Figures

FIGURES 1 – 10. Takama horna sp. nov. 1. Head and thorax, dorsal view. 2. Face. 3. Fore wing. 4. Hindwing. 5. Abdominal apodemes. 6. Pygofer dorsal appendage, lateral view. 7. Subgenital plate. 8. Style. 9. Aedeagus, lateral view. 10. Aedeagus and connective, dorsal view.