Mileewa clavata 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 : 522

Mileewa clavata He & Yang , sp. nov.

( Figs 1a–d , 2 )

Length: male 3.8 mm.

Dorsum chocolate brown; crown with a longitudinal short median yellow line, and three lateral oblique lines, yellowish; eyes dark brown; ocelli reddish; forewing whitish on outer margin, hyaline patch at apex of clavus; venter (face, thorax and abdomen) gray ( Figs 1a–d ).

Head slightly narrower than pronotum; crown conically produced in dorsal view with median length longer than interocular width; coronal suture long, 4/5 median length. Forewing distinctly broadened distally, apex truncate ( Fig. 1d ).

Male pygofer process subapically expanded then narrowed to pointed apex ( Fig. 2a ). Subgenital plates in ventral view slightly widening to near apex then tapered to pointed apex; with uniseriate row of macrosetae on lateral margin and several fine microsetae on ventral surface ( Fig. 2b ). Connective Y-shaped, stem elongated. Style slender, tapered distally to large spiniform process and some small elevated teeth subapically on ventral margin and with few fine setae basad of elevation ( Fig. 2c ). Aedeagus preatrium well developed; shaft tubular, broadened distally in lateral view with pair of symmetrical dorsal apical processes; gonopore apical ( Figs 2d–f ).

Etymology. The species name is a Latin adjective meaning club-shaped, referring to the aedeagus in lateral view.

Material examined. Holotype: ♂, China, Hainan Province, Yinggeling Mountain , 30 April 2017, coll. Yao-wen Zhang.

Remarks. The species can be distinguished by its apically broad forewings ( Fig. 1d ) and club shaped aedeagal shaft in lateral view with a pair of dorsal subapical processes ( Figs 2d–f ).

Figures

FIGURE 1. External features of Mileewa species. a–d, M. clavata sp. nov., a, habitus, dorsal view; b, habitus, lateral view; c, face; d, forewing; e–h, M. rubricosta sp. nov., e, habitus, dorsal view; f, habitus, lateral view; g, face; h, forewing; i–l, forewings, i, M. xiaofeiae; j, M. lackstripa; k, M. houhensis; l, M. alara. Scale lines = 500 μm.

FIGURE 2. Male genitalia of Mileewa clavata sp. nov. a, male pygofer, lateral view; b, subgenital plate, lateroventral view; c, style and connective, ventral view; d–f, aedeagus, d, dorsal view; e, lateral view; f, ventral view. Scale lines = 0.1 mm.