Asymmetrasca hypercurvata, Liu and Zhang

Liu, Yang, Fletcher, Murray J., Dietrich, Christopher H. & Zhang, Ya-Lin, 2014, New species and records of Asymmetrasca (Hemiptera: Cicadellidae: Typhlocybinae: Empoascini) from China and name changes in Empoasca (Matsumurasca), Zootaxa 3768 (3), pp. 327-350 : 333-334

Asymmetrasca hypercurvata, Liu and Zhang , sp. nov.

( Figs 30–37 , 98–100 )

Type specimens. China: holotype ♂, Fujian Prov.: Huanggang, Mt. Wuyi, 16.viii. 2008, 780 m, coll. Xia Gao & Xiaoting Li; paratypes: 1♂, same data as holotype; 2♂♂, Zhejiang Prov.: Qingliangfeng, Lin’an, 6.viii.2008, 1100 m, coll. Daozheng Qin. All in NWAFU.

Length: ♂ 3.0 mm–3.1 mm.

General color of body yellow-greenish ( Fig. 100 ). Crown yellowish, with dark green markings on each side of coronal suture obvious ( Fig. 98 ). Eyes black. Pronotum broad, with irregular patches of cream-yellowish on anterior margin. Lateral parts of scutellum with cream-yellowish triangular spots. Forewing and hind wing semitransparent. Abdomen yellow. Legs pale yellow to pale green ( Fig. 99 ).

Ventral abdominal apodemes subparallel-sided, reaching midlength of segment 5 ( Fig. 32 ). Male pygofer in lateral view slightly narrowing caudad, ornamented with 7–9 stout setae on each side of pygofer lobe ( Fig. 30 ); pygofer appendage slightly arched dorsocaudad, not exceeding caudal margin of lobe in lateral view. Anal tube process well developed, rugose apically ( Fig. 31 ). Subgenital plate in lateral view curved gradually caudodorsad apically, tapering to rounded apex; with numerous macrosetae and fine setae somewhat irregularly scattered; setae group A with 3 stout setae, group B with 16–22 short microsetae, group C with three rows of macrosetae, group D arranged in single row through most of length, irregular at base and apex ( Fig. 37 ). Paramere long, subapically curved, dentifer with 5 teeth, 4–6 setae present subapically ( Fig. 36 ). Connective broad, with posterior margin deeply emarginate medially ( Fig. 35 ). Aedeagus with preatrium long, straight; dorsal apodeme obsolete; shaft irregularly sinuate and slender, slightly tapered, without dorsal denticuli; apical process long, slightly curved, apex expanded and distinctly bifid ( Figs 33–34 ).

Etymology. The specific epithet was formed by combining the Greek prefix " hyper -" meaning "above" with the Latin " curvus ", meaning curve and refers to the overlap of the aedeagal appendage with the shaft in lateral view.

Diagnosis. This species is similar to A. decedens Paoli, 1932 , but differs from the latter in having the aedeagus with a longer process that overlaps the shaft in lateral view and has the apex bifid.

Figures

FIGURES 30 – 37. Asymmetrasca hypercurvata, 30, male pygofer, lateral view; 31, anal tube appendage; 32, abdominal apodemes; 33, aedeagus, ventral view; 34, aedeagus, lateral view; 35, connective; 36, paramere; 37, subgenital plate.

FIGURES 98 – 100. Asymmetrasca hypercurvata, 98, head and thorax, dorsal view; 99, whole body, lateral view; 100, whole body, dorsal view.