Dayus lii, Qin & Zhang, 2007

Qin, Dao-Zheng & Zhang, Ya-Lin, 2007, Revision of the Chinese species of the leafhopper genus Dayus Mahmood (Hemiptera: Cicadellidae: Typhlocybinae: Empoascini), with description of three new species, Zootaxa 1624 (1), pp. 43-51 : 45

Dayus lii n. sp.

( Figs. 1–12 )

Type material. Holotype, male ( CAU): Dazhulan, Jianyang , Fujian Province, 27 Oct. 1974, coll. Fasheng Li.

Length. Male 4.2 mm.

Ground colour of body red. Vertex with irregular sordid yellow patch bordering eye; with a longitudinal greyish patch along coronal suture. Eyes grayish-black except median part dark. Apical 1/3 of fore wing semitransparent, light testaceous, hind wing with veins R, MP and CuA reddish. Legs red except hind tibia reddish beige and tarsi yellowish.

Abdodminal apodemes reaching to middle of segment V. Male pygofer abruptly narrowing apically, with about 10 linearly rigid setae on each side of pygofer lobe, with more posterior setae longer; dorsal lobe-like structure with a rigid microseta; ventral pygofer appendage branched apically, dorsal branch shorter than ventral one. Subgenital plate wide at base, nearly parallel-sided from basal 2/5 to sub-apex, with 9 apically rounded macrosetae in basal group, 28–30 marginal microsetae, 14 lateral macrosetae and 2–4 rows of fine microsetae. Parameres sinuate, apex bearing 8 teeth preceded by about 9 setae. Aedeagal shaft with a bifurcate subapical process and a short apical process on each side. Anal tube process narrowing in apical part.

Female. Unknown.

Etymology. This species is named after the collector of the holotype, Mr. Fasheng Li.

Discussion. Dayus lii n. sp. is similar to Dayus takagii . It differs from the latter in its longer body length in male (4.2 mm compared to 3–3.1 mm), ventral pygofer appendage branched subapically, subgenital plate with 9 setae in basal group, nearly parallel-sided over its most part and aedeagal shaft with a pair of subapical bifurcate processes and another shorter pair of apical processes.

Figures

FIGURES 1–12. Dayus lii n. sp., 1, head and thorax, dorsal view; 2, face; 3, fore wing; 4, hind wing; 5, pygofer, lateral view; 6, aedeagus and connective, dorsal view; 7, same, lateral view; 8, paramere; 9, subgenital plate; 10, anal tube process; 11, ventral pygofer appendage; 12, abdominal apodeme.