Asymmetrasca dahaituoensis, 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 : 330

Asymmetrasca dahaituoensis, Liu and Zhang , sp. nov.

( Figs 3–12 , 86–89 )

Type materials. China: holotype ♂, Hebei Prov.: Dahaituo, Chicheng, 7.viii. 2006, coll. Yani Duan; paratypes: 2♂♂, same data as holotype. All in NWAFU.

Length: ♂ 2.8 mm.

Ground colour of body yellow-greenish ( Fig. 89 ). Crown with light green patch on each side of coronal suture ( Fig. 86 ). Eyes black-brown. Pronotum with irregular patches on anterior margin of pronotum and under eyes. Forewing and hind wing semitransparent. Abdomen yellow. Legs pale yellow ( Fig. 88 ).

Ventral abdominal apodemes parallel-sided, reaching segment 5 ( Fig. 5 ). Male pygofer in lateral view with posterior margin broadly rounded, 15 stout setae along posterior margin ( Fig. 3 ); pygofer appendage curved posterodorsad following posterior margin of pygofer ( Fig. 4 ). Anal hook well-developed, with numerous apical papillae ( Fig. 10 ). Subgenital plate in lateral view, curved gradually caudodorsad apically, not expanded apically; with numerous macrosetae and fine setae somewhat irregular; setal group A with 3 long stout setae and group B with 24–26 short microsetae on apical half ( Fig. 12 ). Paramere with 5 teeth on dentifer, 7 setae subapically, apex nearly straight in lateral view, curved laterad in ventral view ( Fig. 11 ). Connective broad, posterior margin medially emarginate ( Fig. 7 ). Aedeagal shaft well sclerotized, preatrium long and straight, nearly as long as shaft; dorsal apodeme well developed; shaft somewhat sinuate in lateral view, with several denticuli dorsally; distal process nearly straight in posterior view, apex not expanded, without teeth, bent slightly ventrad at tip ( Figs 8, 9 ).

Etymology. The species name is derived from the type locality, Dahaituo, in Hebei Province.

Diagnosis. This new species is similar to Empoasca sakaii Dworakowska, 1982 , but differs in having the apex of the aedeagal process narrow rather than expanded apically and the preatrium relatively long and narrow in lateral view.

Figures

FIGURES 3 – 12. Asymmetrasca dahaituoensis, 3, male pygofer, lateral view; 4, pygofer appendage; 5, abdominal apodemes; 6, dorsal bridge; 7, connective; 8, aedeagus, ventral view; 9, aedeagus, lateral view; 10, anal tube appendage; 11, paramere; 12, subgenital plate.

FIGURES 86 – 89. Asymmetrasca dahaituoensis, 86, head and thorax, dorsal view; 87, face; 88, whole body, lateral view; 89, whole body, dorsal view.