Agnesiella (Draberiella) xantha, Yan, Bin & Yang, Mao-Fa, 2016

Yan, Bin & Yang, Mao-Fa, 2016, Three new species and one new record of the leafhopper genus Agnesiella Dworakowska, 1970 (Hemiptera: Cicadellidae: Typhlocybinae: Typhlocybini) from China, Zootaxa 4184 (3), pp. 529-540 : 530-534

Agnesiella (Draberiella) xantha sp. nov.

( Figs 1–8 , 33–39 )

Descriptions. Male. Body general color yellowish ( Fig. 1 ). Eyes blackish-brown ( Figs 1–4 ). Vertex sordid yellow with two black rounded spots. Vertex with two black patches on anterior margin ( Fig. 3 ). Face sordid yellow except two large dark patches below antennal ledge ( Fig. 4 ). Pronotum mostly black with some pale sordid yellow, dark patches laterad and anteriad as in Figs 1, 3 . Scutum and scutellum brown-yellowish, basal triangles dark brown ( Fig 3 ). Fore wing mostly light yellow with dark brown markings as in Figs 1, 2, 3 , 34 , and the brochosome-field yellowish with blackish patches on both ends ( Fig. 34 ). Hind wing basal 1/2 colorless and subhyaline and apical 1/ 2 infuscated.

Female. Color and pattern similar to that of male ( Figs 1, 2, 5, 6 ), but with median red spot on vertex, pronotum with dark median line reduced and anteromedial area infused with red, and scutum and scutellum red except for dark basolateral triangles ( Figs 5–8 ).

Crown rounded, coronal suture distinct and extended to middle of crown. Length of crown less than interocular width, width of crown approximately equal to greatest width of pronotum. Fore wing apex rounded, with cell 2 largest, cell 3 smallest and subtriangular with petiole. Hind wing with two crossveins forming continuous line ( Fig. 35 ).

Abdominal apodemes reaching end of 6th abdominal sternite ( Fig. 36 ).

Male genitalia capsule in lateral view square, pygofer side with dense patches of microsetae on ventral and dorsal margin, with a single short fingerlike process at posterior margin ( Fig. 33 ). Subgenital plate evenly curved in lateral view, its distal 1/3 darkly pigmented, plate apex bent mesad at right angle in ventral view ( Fig. 39 ). Paramere slender, with small preapical tooth, row of setae on outer margin ( Fig. 39 ). Connective Y-shaped with stem longer than arms. Aedeagus with dorsoatrium well developed, preatrium weak; shaft tubular, with pair of asymmetrical processes arising posteriorly from short common stem with left branch extended ventrad and shorter right branch estended dorsad; apex with pair of recurved, toothed spines extended anteromesad. ( Figs 37, 38 ).

Material examined. Holotype, ♂, Pianma , Yunnan Province, 2450m, 15 August 2006, Coll. Yi Tang . Paratypes, 4♂♂, 11♀♀, same data as holotype .

Etymology. This species is named for its color on middle of fore wing.

Remarks. This new species slightly resembles of A. (D.) farida Dworakowska, 1994 and A. (D.) alni Sharma & Malhotra, 1981 , but differs from both by single fingerlike pygofer appendage; the color pattern of the crown and thorax; the strongly bent subgenital plate; and the aedeagus with two processes, one extended dorsad (left of shaft) and the other extended distad (right of shaft). External characters also distinguish A. (D.) farida Dworakowska, 1994 and A. (D.) alni Sharma & Malhotra, 1981 .

Figures

FIGURES 1 – 16. Habits (dorsal view and lateral view) and face. 1 – 8, Agnesiella (Draberiella) xantha sp. nov., 1 – 4, Male, 5 – 8, Female; 9 – 16, Agnesiella (Draberiella) erosa sp. nov., 9 – 12, Male, 13 – 16, Female. Scale: 0.5 mm.

FIGURES 33 – 39. Agnesiella (Draberiella) xantha sp. nov. 33, pygofer, lateral view. 34, fore wing. 35, hind wing. 36, abdominal apodemes. 37, aedeagus, posterior view. 38, aedeagus, lateral view. 39, subgenital plate, paramere and connective, ventral view.