Membranacea plana Qin & Zhang

Qin, Dao-Zheng, Liu, Yang & Zhang, Ya-Lin, 2011, A taxonomic study of Chinese Empoascini (Hemiptera: Cicadellidae: Typhlocybinae) (II), Zootaxa 2923, pp. 48-58 : 52-54

Membranacea plana Qin & Zhang , sp. n.

( Figs 32–46 )

Type materials. Holotype, male ( NWAFU), Sangzhi County, Hunan Province, 3 Sept. 1981, coll. Xinwang Tong. Paratypes. 5 males, 7 Sept. 1981, 3 males, 4 Sept. 1981, 3 males, 1 Sept. 1981, 1 male, 2 Sept. 1981, 1 male, 3 Sept. 1981, 1 male, 8 Aug. 1981, 4 males, 3 Aug. 1981, other data as holotype ( NWAFU).

Description. Length, male 4.3–4.5 mm.

General color tan. Vertex yellow or sordid, centrally with a brownish yellow patch on each side of coronal suture, median black apical spot circled by creamy patch, the creamy patch extends basad of vertex and centrally joining the coronal suture ( Figs 32, 33 ). Eyes dark. Face yellow to beige. Pronotum tan or sordid yellow centrally and posteriorly, anterior margin and arcuate area behind eyes marked with three creamy patches ( Fig. 32 ). Scutellum with a narrow brownish stripe medially, at each side with a creamy patch caudad of scutoscutellar sulcus, scutoscutellar sulcus black ( Fig. 32 ). Forewing reddish tan in basal 3/4 and less pigmented in apical 1/4, hindwing hyaline, veins beige to brown. Abdomen black brown. Legs yellow except the hind tibiae brown medially. In some specimens the postclypeus has a brownish longitudinal stripe in apical half, anteclypeus mostly brown to blackish brown; forewing reddish brown.

Basal sternal abdominal apodemes reaching segment V ( Fig. 46 ). Male pygofer with 6–8 rigid setae at caudodorsal angle of lobe ( Figs 37, 39 ), dorsal bridge nearly third of total length of pygofer ( Fig. 38 ). Subgenital plate slightly thickened in the middle of dorsal margin which bears 4 fairly long and broad setae forming the basal group, 12 lateral macrosetae, ca. 22 marginal microsetae and several feeble microsetae in 2 irregular rows ( Figs 37, 44 ). Paramere with 7 prominent teeth in dentifer, a few sensory pits and and ca. 7 long setae in cluster more cephald ( Fig. 45 ). Aedeagal shaft with two pairs of flanges dorsally (basal-most) and ventrally (distal-most), both dentate basally at outer margins, with a median flake-shaped ventral process distad of ventral paired processes, apex of shaft acuminate and directed caudo-ventrad, preatrium shorter than shaft, gonopore ventral near apex ( Figs 37, 42, 43 ).

Remarks. Membranacea plana Qin & Zhang , sp. n. differs from other species of this genus by the aedeagal shaft having two pairs of large flanges dorsally and ventrally, and a ventral preapical median flange.

Etymology. The species name alludes to the distinct flake-shaped process at ventral side of the aedeagus.

Figures

FIGURES 32 – 46. Membranacea plana Qin & Zhang, sp. n., 32, head and thorax, dorsal view; 33, face; 34, head and thorax, lateral view; 35, forewing; 36, hindwing; 37, male terminalia, lateral view; 38, pygofer side, dorsal view; 39, same, lateral view; 40, subgenital plates, paramere and connective, ventral view; 41, anal tube appendage, ventral view; 42, aedeagus, lateral view; 43, same, dorsal view; 44, subgenital plate, dorsal view; 45, paramere; 46, abdominal apodeme.