Cofana cheni Yang, Meng & Li

Yang, Mao-Fa, Meng, Ze-Hong & Li, Zi-Zhong, 2015, Taxonomic study on the leafhopper genus Cofana Melichar (Hemiptera: Cicadellidae: Cicadellinae) from China, with description of two new species, Zootaxa 3994 (3), pp. 253-264 : 261

Cofana cheni Yang, Meng & Li , sp. nov.

( Figs 6 , 19–24, 31 )

Type material. Holotype ♂, CHINA: Guizhou, Maolan, 29 July 1995, coll. Chen Huiming. Paratypes: 1♀, same data as holotype; 1 ♂, Guizhou, Wangmo, 1 July 1986, coll. Li Zizhong.

Length: ♂ 6.2–6.4 mm, ♀ 7.5 mm.

Coloration ( Fig. 6 ). Head and thorax dorsum yellow-white to yellow-brown. Crown with large median coneshaped black spot, apex with smaller median black spot narrowly bordered with yellow; eyes dark brown, ocelli yellow-brown bordered with black. Face with round black spot on each side bordering margin of antennal ledge at transition from face to crown; muscle impressions of frontoclypeus brown; clypellus with median triangular brown spot. Pronotum with central longitudinal brown stripe extending to nearly apex of scutellum, lateral margin narrowly bordered with brown. Forewing pale, base of anterior margin yellow-white, veins fuscous. Thoracic pleura, venter, and legs yellowish-brown. Abdomen venter yellow-green (♂) or yellow-white (♀).

External features. Crown with anterior margin broadly pointed, median length of crown slightly more than 3/5 of interocular width; crown slightly convex between ocelli, with fovea between ocelli and eye; ocelli located slightly behind imaginary line between anterior eye angles; lateral frontal sutures extending onto crown and attaining ocelli; ocelli equidistant from adjacent anterior eye angle and median line. Frontoclypeus flattened medially, muscle impressions distinct; transclypeal suture entire. Pronotum narrower than head; anterior margin rounded; posterior margin shallowly concave medially; disk with an arc transverse depression at anterior portion and transversely rugulose behind the depression; scutellum slightly transversely rugulose on posterior portion, flat behind transverse depression. Forewing with apical membrane indistinct, veins distinct, base of second apical cell more proximal than base of third. Hindleg with femoral setal formula 2:1:1.

Male genitalia. Pygofer ( Fig. 19 ) moderately produced with rounded angular caudo-dorsal margin and obliquely truncate caudal margin; surface with macrosetae on apical portion and long microsetae on 2/3 ventral portion. Subgenital plates ( Fig. 20 ) small, triangular, with uniseriate macrosetae and dense long microsetae along outer margin. In lateral view, aedeagus ( Fig. 22 ) slender and with almost equal width from base to apex, apex slightly bent dorsad, with small dense carinae on surface, median portion with ventral triangular membranous process, apex divided into two lobes anteriorly, dorsal apodeme shorter than shaft; in ventral view, aedeagus ( Fig. 21 ) shaft with broad base, gradually narrowed towards apex. Connective ( Fig. 23 ) Y-shaped. Style ( Fig. 24 ) short, with apex slender, smoothly curved laterally in dorsal view, truncate in lateral view, with microsetae subapically. Female 7th sternite ( Fig. 31 ), in ventral view, produced posteriorly, posterior margin transverse medially.

Etymology. The new species is named for the collector of the holotype.

Remarks. This new species resembles C. lineata ( Distant, 1908) , but can be distinguished by the male pygofer with microsetae long and dense on the surface ( Fig. 19 ); the aedeagus shaft in lateral view slender and with almost equal width from base to apex, not bulbous, with small dense carinae on the surface, the apex divided into two lobes, and the dorsal apodeme shorter than the shaft ( Fig. 22 ).

Figures

FIGURES 1 – 7. 1, Cofana lata Young; 2, Cofana spectra (Distant); 3, Cofana subvirescens (Stål); 4, Cofana unimaculata (Signoret); 5, Cofana yasumatsui Young; 6, Cofana cheni sp. nov.; 7, Cofana nii sp. nov.

FIGURES 19 – 32. Male genitalia: 19 – 24, Cofana cheni sp. nov. 19, pygofer, lateral view; 20, subgenital plate, ventral view; 21, aedeagus, ventral view; 22, aedeagus, lateral view; 23, connective, dorsal view; 24, style, dorsal view. 25 – 30, Cofana nii sp. nov. 25, pygofer, lateral view; 26, subgenital plate, ventral view; 27, aedeagus, ventral view; 28, aedeagus, lateral view; 29, connective, dorsal view; 30, style, dorsal view. Female 7 th sternite: 31, Cofana cheni sp. nov.; 32, Cofana nii sp. nov.