Diramus uncatus Wang & Wei

Wang, Yang, Wei, Cong & Zhang, Yalin, 2013, Diramus, a new genus of the leafhopper subfamily Evacanthinae (Hemiptera: Cicadellidae), with description of three new species from Thailand, Zootaxa 3640 (3), pp. 473-478 : 476

Diramus uncatus Wang & Wei , sp. nov.

Figs 11–15 , 26–30 , 33

Description. Body length (including forewing): ɗ, 5.3–5.4mm. Vertex ( Fig. 11 ) mostly blackish ochreous, with small whitish patches near anterior margin and middle of lateral margin. Forewing ( Fig. 15 ), mostly dark ochreous, with whitish patch near costal margin; clavus with yellowish green patch.

Male pygofer ( Figs. 26 , 33 ) with slender ventral process arising near base, about two-thirds length of ventral margin in lateral view; caudal margin with large forked process near apex of pygofer in addition to the ventral process. Aedeagal shaft ( Figs 27, 28 ) in ventral view with paired apical processes remarkably elongated and recurved anteriorly, more than half of circle, fishhook-like in shape. Other characteristics as shown in Figs 11–15 , 26–30 , 33 .

Type material. THAILAND: Holotype ɗ (QSBG), Lampang, Chae Son, 487m, 1–8.viii.2007, coll. Bumuen Kwunnui & Acharaporn Sukpeng. Paratype: 1ɗ (NWAFU), same data as holotype except 485m, 1–7.xi.2007.

Remarks. This species can be easily recognized by the blackish ochreous vertex with three whitish patches, the remarkably recurved apical processes of aedeagal shaft, and the large forked process on the caudal margin near apex of pygofer in addition to the ventral process.

Etymology. The specific name refers to the remarkably recurved apical processes of aedeagus.

Figures

FIGURES 1 – 15. Male, habitus, face, head and forewing. 1 – 5: D. khaokus sp. nov.; 6 – 10: D. nigromaculatus sp. nov.; 11 – 15: D. uncatus sp. nov.

FIGURES 16 – 30. Male genitalia. 16 – 20: D. khaokus sp. nov.; 21 – 25: D. nigromaculatus sp. nov.; 26 – 30: D. uncatus sp. nov.; 16, 21, 26: male pygofer, lateral view; 17, 22, 27: aedeagus, lateral view; 18, 23, 28: aedeagus, ventral view; 19, 24, 29: connective and style, dorsal view; 20, 25, 30: subgenital plate, ventral view.

FIGURES 31 – 33. Male pygofer side. 31: D. khaokus sp. nov.; 32: D. nigromaculatus sp. nov.; 33: D. uncatus sp. nov.