Empoasca (Matsumurasca) quadrifida, Qin, Dao-Zheng & Zhang, Ya-Lin, 2008

Qin, Dao-Zheng & Zhang, Ya-Lin, 2008, The leafhopper subgenus Empoasca (Matsumurasca) from China (Hemiptera: Cicadellidae: Typhlocybinae: Empoascini), with descriptions of three new species, Zootaxa 1817, pp. 18-26 : 24

Empoasca (Matsumurasca) quadrifida , n. sp.

( Figs. 27–40 )

Type material. Holotype, male ( NWAFU), Mianning County, Sichuan Province, 8 Nov. 1999, 1650 m, coll. Irena Dworakowska. Paratypes, 2ɗ, Xishan, Kunming, Yunnan Province, 31 Dec. 1999, coll. Irena Dworakowska. 2ɗ, Xishan, Kunming, Yunnan Province, 31 Dec. 1999, coll. Daozheng Qin. 1ɗ, Moxi, Luding County, Sichuan Province, 4 Nov. 1999, 1600 m, coll. Daozheng Qin ( NWAFU).

Length. Male 4.0–4.1 mm.

Colour. Vertex yellow, with grayish-green patch centrally on each side of coronal suture; ocelli surrounded by creamy patch; coronal suture beige. Eyes brownish. Frontoclypeal area greenish-yellow, basal part yellow; anteclypeus light yellow to greenish-yellow; genae yellow. Pronotum with lighter patches at anterior margin and arcuate area behind eyes; scutellum with quadrate creamy patch antero-mesally, basal angles sordid yellowish. Forewing and hindwing hyaline. Abdomen yellow. Legs yellow except 1st–3rd tibia apically and tarsus sordid greenish.

Abdominal apodemes parallel-sided, rounded apically, reaching end of 5th segment. Male pygofer quadrangular, with 5–8 stout setae on outer surface; ventral pygofer appendage curved caudodorsad, not exceeding caudal margin, curved dorsad and tapering to pointed apex. Subgenital plate with 3–5 microsetae in basal group, 15–21 short marginal microsetae, 18–21 long lateral macrosetae and fine microsetae arranged in 2–3 irregular rows. Paramere with subapical dentate region with 4 teeth preceeded by 4–6 setae. Aedeagal shaft longer than preatrium, with basal pair of long spinose processes and subapical pair of short processes, dorsal apodeme well developed, gonopore terminal. Connective with anterior margin thickened, caudal margin incised medially. Anal tube process solid, lamellate, median part broadened then tapering to acute apex.

Female. Unknown.

Etymology. The new species name alludes to the two pairs of processes on the aedeagal shaft.

Discussion: Empoasca (Matsumurasca) quadrifida , n. sp. is similar to Empoasca (Matsumurasca) thapae , but differs from the latter in having an apically pointed ventral pygofer appendage compared to the deeply serrated ventroapical margin found in E. (M.) thapae ; the paramere with the subapical region bearing 4 teeth without denticles on its surface; the abdominal apodemes almost reaching the end of the 5th segment; the aedeagal shaft longer than the preatrium, with basal and subapical pairs of processes.

Figures

FIGURES 27 – 40. Empoasca (Matsumurasca) quadrifida n. sp., 27, head and thorax, dorsal view; 28, face; 29, fore wing; 30, hind wing; 31, pygofer, lateral view; 32, ventral pygofer appendage; 33, anal tube and anal styli; 34, anal tube process; 35, aedeagus, lateral view; 36, same, caudal view; 37, subgenital plate; 38, connective; 39, paramere; 40, abdominal apodeme.