Membranacea unijugata 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 : 51

Membranacea unijugata Qin & Zhang , sp. n.

( Figs 16–31 )

Type materials. Holotype, male ( NWAFU), Mt. Emei, Sichuan Province, 15 Aug. 2001, coll. Cong Wei, Suqin Shang & Zhaofu Yang, by light trap. Paratypes. 1 male, same data as holotype; 1 male, Mt. Taibai, Shaanxi Province, 1500 m, coll. Jingruo Zhou & Lan Liu ( NWAFU).

Description. Length, male 4.1–4.3 mm.

General color brown to reddish brown. Vertex with a blackish patch centrally on each side of coronal suture, median black apical spot circled by creamy patch, the creamy patch extends basad of vertex, centrally joining the coronal suture ( Figs 16, 17 ). Eyes dark. Face yellow to yellowish brown, postclypeus centrally infuscated with a longitudinal stripe in apical half. Pronotum reddish brown centrally and posteriorly, at anterior margin with an orange patch medially ( Fig. 16 ). Centre of scutellum with a quadrate patch anteriorly which is furnished with a narrow brownish stripe medially, caudad of scutoscutellar sulcus with a large and irregular patch, scutoscutellar sulcus black ( Fig. 16 ). Forewing semi-transparent, hindwing hyaline, veins beige to brown. Abdomen black brown. Legs slightly orange except the hind tibiae tan medially.

Basal sternal abdominal apodemes exceeding half of segment V ( Fig. 31 ). Male pygofer with ca. 9 rigid setae at caudo-dorsal angle of lobe ( Figs 21, 23 ), dorsal bridge less than third of the total length of pygofer ( Fig. 22 ), Subgenital plate expanded dorso-laterad in middle and bearing 4 fairly long and broad setae forming the basal group, 14 lateral macrosetae, 21–25 marginal microsetae and several feeble microsetae in 3 irregular rows ( Figs 21, 29 ). Paramere with 10 prominent teeth in dentifer, a few sensory pits and ca. 10 long setae in line more cephald ( Fig. 30 ). Aedeagal shaft with pair of flanges latero-ventrally at apical 2/5, margins smooth or dentate basally, subapex of shaft smooth at ventral side, or slightly produced ventro-medially in a narrow process which is dendate at ventral margin in lateral view, shaft sharply narrowing in terminal part, apex acuminate, preatrium nearly half length of shaft, gonopore ventral near apex ( Figs 21, 26–28 ).

Remarks. Membranacea unijugata Qin & Zhang , sp. n. differs from other species of this genus by the aedeagal shaft having only one pair of flanges in dorsal aspect.

Etymology. The species name is formed from “ unijugatus ” (Latin; adjective), with the feminine termination – a, referring to the single pair of flanges of the aedeagus.

Figures

FIGURES 16 – 31. Membranacea unijugata Qin & Zhang, sp. n., 16, head and thorax, dorsal view; 17, face; 18, head and thorax, lateral view; 19, forewing; 20, hindwing; 21, male terminalia, lateral view; 22, pygofer side, dorsal view; 23, same, lateral view; 24, subgenital plates, paramere and connective, ventral view; 25, anal tube appendage, ventral view; 26, 27, aedeagus, lateral view; 28, same, dorsal view; 29, subgenital plate, dorsal view; 30, paramere; 31, abdominal apodeme.