Ujna liboensis He & Yang, 2021

He, Hong-Li, Yan, Bin, Yang, Mao-Fa & Webb, M. D., 2021, Four new species of Mileewini leafhoppers (Hemiptera: Cicadellidae: Mileewinae) from China, with a checklist to Chinese species, Zootaxa 4949 (3), pp. 521-540 : 531

Ujna liboensis He & Yang , sp. nov.

( Figs 6, 7)

Length: male, 4.0 mm; female, 4.2-4.3 mm.

Dorsum pale brown to brown; crown with whitish yellow stripe medially, on each side from ocelli to near apex and adjacent each eye; ocelli and eyes dark brown in male or ocelli reddish and eyes yellowish in female ( Figs 6a, 6e). Face whitish yellow except for dark anterior area ( Figs 6c, 6d). Pronotum and mesonotum with pale fine medial stripe ( Figs 6a, 6e). Forewing brownish hyaline, with subapical costal area pale with a red costa oblique stripe ( Fig. 6g).

Crown distinctly angularly produced, median length longer than interocular width, slightly narrower than pronotum; coronal suture distinct, 1/2 median length.

Face with transclypeal suture indistinct ( Figs 6c, 6d). Forewing similar in width throughout length with apex rounded ( Fig. 6g).

Male pygofer with posterior margin concave medially; with small setae on posteroventral area; with a long, dorsally curved ventral process, apex hook-shaped ( Fig. 7a). Subgenital plates slender, with row of lateral macrosetae and several short fine setae and apically with long fine setae ( Fig. 7b). Connective T-shaped with stem and arms short. Style slender, sickle shaped with apex pointed; with several microsetae ( Fig. 7c). Aedeagus with short preatrium and dorsal apodeme; shaft laterally compressed with basal dorsal triangular projection on each side and one ventral bifurcate process near midlength, crescent-shape in ventral view, gonopore apical ( Figs 7d, 7e).

Female. Valvulae as in Figs 6 i- 6l.

Etymology. The specific epithet refers to the type locality.

Material examined. Holotype: ♂, China, Guizhou Province, Libo County (513 m), 30 October 2018, coll. Yan Jiang. Paratypes: 2♀♀, data same as holotype .

Remarks. This species is similar to Ujna liangae Yang et al., 2014 in having the forewing with a red costal oblique stripe and similar genitalia, but its aedeagus is broader in lateral view with processes dorsal rather than ventral in U. liangae .